[Tutorial] How to achieve root on P710/L7 2 single sim verison on KITKAT ROM - LG Optimus L3 II, L5 II, L7 II, L9 II

This is now DEPRECATED and NOT SUPPORTED ANYMORE since there is an easier method to do it! Links won't get updated! You can still use the written info!
If you want rooted kitkat head to my friend's thread @maxx_hr (THANK YOU FOR ALL YOUR WORK!) HERE: http://forum.xda-developers.com/optimus-l3-l5-l7-l9-ii/development/kk-kk-kdz-p710-root-t2950532
Hello to you all!​Warning: ​
Code:
[COLOR="Red"][SIZE="4"]Your warranty is now void. I am not responsible for bricked devices, dead SD cards,
thermonuclear war, or you getting fired because the alarm app failed.
Please do some research if you have any concerns about all contained in this tutorial
before you follow it! YOU are choosing to make these modifications, and if
you point the finger at me for messing up your device, I will laugh at you.
But since i'm a nice dude i will try to guide you anyway:)[/SIZE][/COLOR]
In this tutorial we will learn how to:
- achieve root on our L7 II (Both single and dual-sim, so P715/P710 and all the derivated phones from them) by LG running a Custom Rom or Stock KK Rom.
FOR THIS FOLLOW ALL STEPS.
- unbrick/flash to a specific firmware using Lg Flash Tool (In this tutorial there are only 2 KDZ files stock JB for P710 and P715. If you want to recover from a brick or want a different KDZ file you can find them over here: http://lg-phone-firmware.com/)
FOR THIS FOLLOW STEP 1 AND STEP 2 (install all drivers including adb and download the files that are needed at Step 2).
- flash with CWM (There are 3 methods I describe. Use the one that suits you the best. You can flash any *.zip that is suitable for your device.)
FOR THIS FOLLOW STEP 5.​
Save your data you need, you will lose all data so backup with Titanium Backup or a program you like the info you need.​
ALL DOWNLOADS ARE AT THE BOTTOM OF THE POST!​
This tutorial will be split in steps as the following:
1. Preparing the Windows machine with the right drivers and software.
2. Reverting back to Jellybean Stock Rom.
3. Rooting on Stock Rom (Jellybean).
4. Installing Unlocked Bootloader and ClockWorkMod Recovery (CWM).
5. Flashing KitKat or a Custom Rom through CWM.
6. Flashing Root through CWM.
So let's start the job.
1. Preparing the Windows machine with the right drivers and software.
Uninstall everything related to LG from Control Panel (Drivers, PC Sync etc).
Restart your PC.
Download and unrar the archive "LG Drivers.rar".
Install both files inside and restart your computer.
Download "adb-setup-1.4.2.exe" and install it (answers should be y y y and install the drivers when prompted).
Download "Framaroot-1.9.1.apk".
Download "LG Flash Tool 2014.rar".
Download "Free LG P710.rar"
Download "P710 Stock KK.zip". -> Stock KK image with Stock KK kernel in it made from the original V20 KDZ (Open Europe).
Download SuperSU
*Download "P715 Stock KK.zip" and "LG P715 (JellyBean).kdz" if you are running a dual-sim version of the phone.
*Download all the files you need!
From now on I will consider you have this files and I will just call their names when to use them.
2. Reverting back to Jellybean Stock Rom.
Open the back cover of your phone and pull the battery out. Wait about 10 seconds. Put the battery back in.
While HOLDING (keep pressed) the VOLUME DOWN BUTTON insert the USB Cable in the phone (you need to have your USB cable inserted in an USB 2 port from the back of your PC).
When you see the yellow screen with emergency mode stop pressing the button.
Unplug the USB from the phone and then plug it in again.
Unrar "LG Flash Tool 2014.rar" and open "LGFlashTool2014.exe" with right-click Run As Admin.
*If you cannot open this program you need to install "VC_RedistInstaller.exe". You are missing some libraries of visual C++*
*IF YOU HAVE ANOTHER PHONE (another LG or P715) DO THE SAME INSTRUCTION AND REPLACE JUST THE KDZ FILE ON "Select KDZ File" TO THE ONE YOU DOWNLOADED AND IS SUITABLE FOR YOUR OWN DEVICE.
Move PhoneMode from DIAG to EMERGENCY. Select KDZ File: you have a file called "V10J_00.kdz" in the same folder as the tool. Select that. Press CSE Flash (CAUTION!!! This will reflash the phone and YOU WILL LOSE ALL YOUR DATA SO BE WARNED).
Another screen will open and press START.
Another screen will open once again press OK.
At a point you will get an error like "Offline BLA BLA". DON'T DO ANYTHING DO NOT PRESS OK.
Wait until your phone reboots and then you can close this tool.
Remove USB cable.
IMPORTANT STEP:
Pull out the battery. Wait 10 seconds put it back. While holding VOLUME DOWN + HOME BUTTON press POWER BUTTON. Wait until you see LG logo and stop pressing POWER. Keep pressing the other 2 until you see android robot doing things. Wait until the phone boots.
CONGRATZ you are on JELLYBEAN (Or the KDZ you chose).
3. Rooting on Stock Rom (Jellybean).
When you see the welcome screen just fast forward everything.
Go to system settings->security->tick Unknown sources->OK.
Go to system settings->developer options->OK->tick USB debugging->YES.
With an SD card reader or with your USB connected as Media Sync (MTP) copy the "Framaroot-1.9.1.apk" to your SD Card.
Using the phone's FILE MANAGER go to external_SD and click the Framaroot you just copied. Run it using Package Installer Just Once and Install.
When finished press OPEN. At the first choice choose Install SuperSU and then press on "Gandalf". You will get Success. Press OK and reboot.
You will see SuperSU in you apps.
YAY! IT'S DONE.
4. Installing Unlocked Bootloader and ClockWorkMod Recovery (CWM).
*SAME FILE YOU NEED FOR LG P715
Earlier you have download "Free LG P710.rar" and in the first step you installed ADB. We will use that now.
Unrar the "Free LG P710.rar" and place the 2 files ON THE ROOT (only on root) of the SD card using device mounted in MTP mode or SD card reader. Put back the card if you use the second option.
WARNING!!!
This can mess up you device so just do what i say step by step!​
Plug the USB Cable in the Phone once again and use MTP connection mode.
Click Start+R type CMD and press ENTER.
Run the Following with copy paste to CMD.
Code:
adb devices
You will see your device.
*IF YOU CANNOT MAKE YOUR DEVICE BE RECOGNIZED IN "adb devices" do this:
Install this: https://play.google.com/store/apps/details?id=jackpal.androidterm&hl=ro
Open terminal and continue with the steps down below.
Code:
adb shell
You will see something ending with $.
Code:
su
Unlock the dvice if it is locked and your phone will ask for superuser permission press GRANT.
Code:
dd if=/storage/external_SD/APPSSBL.bin of=/dev/block/mmcblk0p5
This will copy the unlocked bootloader to the bootloader partition.
Code:
dd if=/storage/external_SD/recovery.img of=/dev/block/mmcblk0p17
This will copy the CWM to recovery partition.
Code:
reboot recovery
This will reboot your phone in CWM if you followed all steps correctly.
GREAT SUCCES we have an unlocked bootloader and CWM.
Close your CMD.
Unplug USB.
5. Flashing KitKat or a Custom Rom through CWM.
*IF YOU WANT TO FLASH ANOTHER ZIP FILE OR YOU ARE ON P715 JUST USE THE ARCHIVE YOU NEED AS REFERENCE, NOT "P710 Stock KK.zip". CHOOSE THE FILE THAT IS MOST SUITABLE OR YOU THINK IT'S BEST FOR YOU
I made "P710 Stock KK.zip" you downloaded. This is the stock image for KK Open Europe. Here you can either flash mine or search for a Custom Rom for your device. Either way you will follow the exact same steps but with a different archive. I will take for reference the "P710 Stock KK.zip".
Plug USB in.
You Navigate using Volume Up Button (UP) and Volume Down Button (DOWN). The Power Button is OK.
Do this:
- Go to "wipe data/factory reset" and OK. Go to YES then OK. Wait until done.
- Go to "mounts and storage" and do the following: "format /cache" and "format /system" everytime with YES as second option. Press "go back" once.
- Go to "advance" and then "wipe dalvik cache" and YES. Press "go back".
Here you have 3 options.
OPTION 1.
Use an SD card reader copy the Zip file to the root of the SD card or copying using CWM. Using CWM you navigate with Volume Up and Volume Down to "mounts and storage" press POWER BUTTON (OK). Go to "mount USB storage" and your SD card will appear in windows and you can copy. After that you press "go back" 2 times to get to the main menu.
Go to "Install zip" and then "choose zip from sdcard". Search for the zip file and press OK then go to "YES" and press OK. Wait until done.
Go to "wipe data/factory reset" and OK. Go to YES then OK. Wait until done.
Press "Reboot System Now" and "yes" if asked (if you are asked about some fix or anything after you press reboot now choose the positive thing like the answer that is not no).
OPTION 2.
Copy the file using adb push. Open a CMD window in Windows (Start+R type CMD press ENTER). Copy this:
Code:
adb push
With the space. After space go where you downloaded the zip file highlight it and drag it in the CMD. Leave a space after that and type /sdcard (without space after).
Wait until done and close CMD.
After you copied the file to your sdcard go to "install zip" -> "choose zip from sdcard" -> search for the "P710 Stock KK.zip" press OK then go to "YES" and your installation will beging. Wait until it is done. Go to "wipe data/factory reset" and OK. Go to YES then OK. Wait until done.
Press "Reboot System Now" and "yes" if asked (if you are asked about some fix or anything after you press reboot now choose the positive thing like the answer that is not no).
NOTE: In the zip i made i don't know why i couldn't sideload it but usually you do not have to copy to SD card to flash something. You can sideload it. All you have to do is:
-Go to "install zip" -> "install from sideload"
On your computer open a CMD and copy this :
Code:
adb sideload
Copy with space and after what you copied grab the zip you want to flash and drag it to CMD. Hit ENTER. Sideload will send the zip to phone and process of flashing will start. After it is done reset to factory again.
Press "Reboot System Now" and "yes" if asked (if you are asked about some fix or anything after you press reboot now choose the positive thing like the answer that is not no).
CONGRATZ YOU ARE NOW ON KITKAT. I HONESTLY THINK THAT YOU SHOULD GO FOR THIS CUSTOM ROM OVER HERE BECAUSE IT IS LIKE 10 TIMES BETTER THAN THE STOCK KK. TO INSTALL JUST DOWNLOAD THE ZIP FILE FROM THERE (V2) AND FOLLOW THE TUTORIAL WITH JUST REPLACING THE ZIP WITH THE OTHER ZIP.
LINK TO ROM: http://forum.xda-developers.com/optimus-l3-l5-l7-l9-ii/development/l7-ii-p710-amigakitkat-t2890092
LINK TO DOWNLOAD: http://d-h.st/GSh
6. Flashing Root through CWM.
On some ROMS root will not be there. To avoid this we will flash the SuperSU zip.
To get to recovery you have 2 ways:
- From you ROM connect USB as MTP or in a way that ADB recognizes it (device gets detected by adb devices) type adb reboot recovery.
- Close your phone. At the same time press VOLUME DOWN + HOME BUTTON + POWER BUTTON. When you see the LG logo stop pressing POWER BUTTON. Keep the others 2 until you are in CWM.
Install the SuperSU zip with one of the ways you learnt at step 5.
You are rooted now.
Hope everything worked out fine for you and you are happy. Have a really nice day.
CREDITS:
riskey95 -> his work for CWM recovery and Hacked Bootloader
Chainfire -> for making SuperSu possible
Snoop05 -> for the amazing 15 seconds ADB Installer
alephzain -> making Framaroot, such an easy root method
santhoosh -> for the tutorial of making CWM flashable zip from KDZ
Amiga500 -> for super cool KK Rom
airidosas252 -> best kernel on the market
ME -> for putting everything together and writing this
Everyone i forgot just PM me​
Lg Flash Tool 2014 : http://tinyurl.com/kggahet
P710 Stock KK.zip: http://tinyurl.com/p7q7d75
P715 Stock KK.zip: http://tinyurl.com/nllkxfm
P713_CIS_KK.zip: http://tinyurl.com/nv3uzop
LG P715 (JellyBean).kdz: http://tinyurl.com/lwv29xr
adb-setup-1.4.2.exe: http://tinyurl.com/qca8abd
VC_RedistInstaller.exe: http://tinyurl.com/n98r7wg
LG Drivers: http://tinyurl.com/l3mgf49
CHANGELOG:
- added support for P715
- added P713 CIS
- added new version of SuperSU

This is fantastic! I've been looking for how to convert KDZ to a CWM Zips because of trouble rooting the P713 Firmware

Dennydap said:
This is fantastic! I've been looking for how to convert KDZ to a CWM Zips because of trouble rooting the P713 Firmware
Click to expand...
Click to collapse
Does P713 have NFC?

This method actually works for dual sim too,you just have to use P715 kdz's.

KWG V2 said:
This method actually works for dual sim too,you just have to use P715 kdz's.
Click to expand...
Click to collapse
Yeah it does. Maybe this weekend I will mod it. It is usefull for recoverying from soft bricks also just Step 1 and 2.

it was great till i get stuck on boot loop ,,, now how to solve ?

thanks for the useful guide.
I have a problem though, I cannot go after kdz extraction.
LG Tools stops with an cryptic error like [009.400.120.120.120]PC????? and looking at the log it seems there are troubles in unpacking the kdz file.
I have tried with different roms but still the same.
Does anyone has the same problem ?

xak-fr said:
it was great till i get stuck on boot loop ,,, now how to solve ?
Click to expand...
Click to collapse
Where exactly did you get a boot loop?
thanks for the useful guide.
I have a problem though, I cannot go after kdz extraction.
LG Tools stops with an cryptic error like [009.400.120.120.120]PC????? and looking at the log it seems there are troubles in unpacking the kdz file.
I have tried with different roms but still the same.
Does anyone has the same problem ?
Click to expand...
Click to collapse
Did you run as administrator? Do you have drivers installed? Tell me exacly what you did and what happened.

xak-fr said:
it was great till i get stuck on boot loop ,,, now how to solve ?
Click to expand...
Click to collapse
the problem is on V10J,, i dont know where you find it but it stucks,,, i used the lg flashtool for flashing kit kat i got the original one and the phone starts running but the thing that made me curious is that nothin on phone changed,, it is the same as it was when i had stock kit kat,, no factory reset, no nothing,,, can anyone explain please ?

xak-fr said:
the problem is on V10J,, i dont know where you find it but it stucks,,, i used the lg flashtool for flashing kit kat i got the original one and the phone starts running but the thing that made me curious is that nothin on phone changed,, it is the same as it was when i had stock kit kat,, no factory reset, no nothing,,, can anyone explain please ?
Click to expand...
Click to collapse
I can't really understand you. The point of this guide is to get root on kitkat so flashing with lg flashtool will not work if you want kit kat rooted. I tested that V10J on my own l7 2 (p710). Also if you flashed Jellybean did you press CSE Flash not Normal Flash?

scholars nxperan
christi9503 said:
I can't really understand you. The point of this guide is to get root on kitkat so flashing with lg flashtool will not work if you want kit kat rooted. I tested that V10J on my own l7 2 (p710). Also if you flashed Jellybean did you press CSE Flash not Normal Flash?
Click to expand...
Click to collapse
sorry for my english ,, let me explain,, i had stock kit kat on my P710,, I flashed JellyBean (V10J that was on flashtool folder). after the flash (CSE Flash) finishes i got stuck on boot loop,, so after many tries to revive the phone i used to flash the stock kit kat again and the phone started working but in the phone nothing changed like nothing happened ,, i know it is not rooted , i flashed stock kit kat (V20A.KDZ)
so the problem is the boot loop i got after flashing V10J i found in folder,,,

xak-fr said:
sorry for my english ,, let me explain,, i had stock kit kat on my P710,, I flashed JellyBean (V10J that was on flashtool folder). after the flash (CSE Flash) finishes i got stuck on boot loop,, so after many tries to revive the phone i used to flash the stock kit kat again and the phone started working but in the phone nothing changed like nothing happened ,, i know it is not rooted , i flashed stock kit kat (V20A.KDZ)
so the problem is the boot loop i got after flashing V10J i found in folder,,,
Click to expand...
Click to collapse
What model you have P710?

christi9503 said:
What model you have P710?
Click to expand...
Click to collapse
yes, Lg optimus L7II P710

xak-fr said:
yes, Lg optimus L7II P710
Click to expand...
Click to collapse
Ok do that step again. Flash with that tool using the image i provided. After the last ok. Even when you get the offline error don't touch it until phone reboots. If you get bootloop do this.
1. Pull out battery. Wait 10 seconds. Push battery back in.
2. While holding POWER DOWN + HOME BUTTON press POWER BUTTON. Wait until you see LG logo then stop presing POWER. You will get to see android guy doing stuff. Then tell me if it's ok.

christi9503 said:
Ok do that step again. Flash with that tool using the image i provided. After the last ok. Even when you get the offline error don't touch it until phone reboots. If you get bootloop do this.
1. Pull out battery. Wait 10 seconds. Push battery back in.
2. While holding POWER DOWN + HOME BUTTON press POWER BUTTON. Wait until you see LG logo then stop presing POWER. You will get to see android guy doing stuff. Then tell me if it's ok.
Click to expand...
Click to collapse
yes, i get the boot loop but after the reset is ok,, now will go on other steps ,, thank you

xak-fr said:
yes, i get the boot loop but after the reset is ok,, now will go on other steps ,, thank you
Click to expand...
Click to collapse
Don't forget to press the thx button it's in the right . I will add this to the tutorial I didn't need it but who knows.

I managed to do the "root" step, but somehow cannot proceed with the next step.
When I check "USB debugging", the phone doesn't connect to the computer for some reason. I tried multiple computers, with no luck. The "adb devices" says just empty "List of devices attached".
If I disable the USB debugging, the phone gets connected just fine, if I enable it again, it gets stuck on "Connected as installer", and doesn't connect as MTP....
Any idea how to fix this?

Do you have drivers installed? Also when you press MTP cancel if your phone wants to install anything.
Sent from my LG-P710 using XDA Free mobile app

christi9503 said:
Do you have drivers installed? Also when you press MTP cancel if your phone wants to install anything.
Click to expand...
Click to collapse
I tried everything, without luck. I ended just using terminal emulator to copy the files on phone directly (might be cool to add this to your tutorial, as someone else can also have this problem). So, now I'm on Amigas ROM - makes a HUGE difference! Thanks, looking forward for some other custom ROMs for this phone..

vasikgreif said:
I tried everything, without luck. I ended just using terminal emulator to copy the files on phone directly (might be cool to add this to your tutorial, as someone else can also have this problem). So, now I'm on Amigas ROM - makes a HUGE difference! Thanks, looking forward for some other custom ROMs for this phone..
Click to expand...
Click to collapse
Strange huuummm. I don't know. Yeah i will add Terminal Emulator also in weekend. Never happened to any of my phones before... Maybe driver conflict on your PC or something like that.

Related

Flash recovery from lgmdp

FLASHING CUSTOM RECOVERY (CWM) FROM LGMDP
FOR LG P500 / OPTIMUS ONE ONLY
This method works for all unrooted p500/optimus one and p500/optimus one devices stuck in emergency mode.
DO THIS ON YOUR OWN RISK, I WILL HAVE NO LIABILITY IF YOU BRICK YOUR PHONE !!!
download lgmdp : Download here
download clockwork recovery (5.0.2.0): Download here
1. disable lg modem ( in device manager->modems)
2. now connect your phone to pc. (If phone not booting into rom connect in emergency mode, turn off phone and press (volup+return+power) buttons simultaneously)
3. start lgdmp
4. click "select port"
Phone will be automatically detected press "connect"
(close the pop up window of image select generally you will get it on connect of lgmdp)
5. backup nv for safety (tools->nv backup) {ignore this step when phone connected in emergency mode, i did ignore this and found no risk of loosing nv}
6. extract downloaded recovery into a new folder
7. select the extracted recovery folder as "image folder or select image" in lgmdp
(it gives some errors as other files are not present, donot worry as we are only flashing recovery those 2 files are enough, files "recovery" and "partiton" will be automatically checked and others gray out)
8. Close the selection window and press "download" (in main window of lgmdp)
DONOT DISCONNECT YOUR MOBILE UNTILL IT SHOWS DOWNLOAD COMPLETE AT BOTTOM
it shows in middle trying to connect to phone etc. donot touch the phone it will be automatically connect everytime.
AFTER DOWNLOAD COMPLETE your device should boot into recovery
1. switch off your device
2. pressing (home+vol down+power) buttons simultaneously should boot into recovery.
now install whichever rom you want and enjoy
Tested on O1 having baseband v10 and v20 also, from normal boot and emergency mode as well and it works.
mak.3736 said:
FOR LG P500 / OPTIMUS ONE ONLY
This method should work for all unrooted devices and p500/optimus one devices stuck in emergency mode.
This is tested on O1 having v10 baseband and it works.
SHOULD WORK FOR V20 as well
download lgmdp : http://www.mediafire.com/?ov799yg7vbnce9j
download cwm recovery : http://www.mediafire.com/?1lcjbfa3ypqbqj3
1. disable lg modem ( in device manager->modems)
2. now connect your phone to pc.(if phone not booting into rom connect in emergency mode (home+volup+return) button holding simultaneously)
3. start lgdmp
4. click "select port"
Phone will be automatically detected press "connect"
(close the pop up window of image select generally you will get it on connect of lgmdp)
5. backup nv for safety (tools->nv backup) {ignore this step while connecting phone in emergency mode, i did ignore this and found no risk of loosing nv}
6. extract downloaded recovery into a new folder
7. select the extracted recovery folder as "image folder or image select" in lgmdp
(it gives some errors donot worry, but files "recovery" and "partiton" will be automatically checked and others gray out)
8. press start or download
DONOT DISCONNECT YOUR MOBILE UNTILL IT SHOWS DOWNLOAD COMPLETE AT BOTTOM
AFTER DOWNLOAD COMPLETE your device should boot into recovery
1. switch off your device
2. pressing (home+vol down+power) buttons simultaneously should boot into recovery.
now install whichever rom you want and enjoy
TESTED ON v10 baseband LG O1 and it worked for me.
Click to expand...
Click to collapse
i need to try it once.thanks tho
phone is not detecting
no phone to connect.LGMDP-v1.5 is not detecting the phone.pls help...my full problem http://forum.xda-developers.com/showthread.php?p=19303459#post19303459
ojobinv said:
no phone to connect.LGMDP-v1.5 is not detecting the phone.pls help...my full problem http://forum.xda-developers.com/showthread.php?p=19303459#post19303459
Click to expand...
Click to collapse
reinstall drivers.
let your phone be on (stuck at lg logo), connect to computer, flash custom recovery from lgmdp.
There might errors occur at nv backup or nv restore but it will flash recovery.
my phone doesnt even starting in emergency mode.
1. disable lg modem ( in device manager->modems)
2. now connect your phone to pc. (If phone not booting into rom connect in emergency mode, turn off phone and press (home+volup+return) buttons simultaneously)
3. start lgdmp
4. click "select port"
Phone will be automatically detected press "connect"
(close the pop up window of image select generally you will get it on connect of lgmdp)
5. backup nv for safety (tools->nv backup) {ignore this step when phone connected in emergency mode, i did ignore this and found no risk of loosing nv}
6. extract downloaded recovery into a new folder
7. select the extracted recovery folder as "image folder or select image" in lgmdp
(it gives some errors as other files are not present, donot worry as we are only flashing recovery those 2 files are enough, files "recovery" and "partiton" will be automatically checked and others gray out)
8. press start or download
DONOT DISCONNECT YOUR MOBILE UNTILL IT SHOWS DOWNLOAD COMPLETE AT BOTTOM
AFTER DOWNLOAD COMPLETE your device should boot into recovery
1. switch off your device
2. pressing (home+vol down+power) buttons simultaneously should boot into recovery.
now install whichever rom you want and enjoy
Tested on O1 having baseband v10 and v20 also, from normal boot and emergency mode as well and it works.[/QUOTE]
hi
i tried to update firmware through kdz updater.
it erased the c drive but then due to some error my phone is not starting even in emergency mode.
i tried all possible combinations of hard keys.
luckily its under warranty.
but i dont know any convincing reason that the service center would accept.
plz help.
farzii said:
hi
i tried to update firmware through kdz updater.
it erased the c drive but then due to some error my phone is not starting even in emergency mode.
i tried all possible combinations of hard keys.
luckily its under warranty.
but i dont know any convincing reason that the service center would accept.
plz help.
Click to expand...
Click to collapse
Tell them you were updating phone through official lg tool software updater, the phone went to emergency mode during process, it shutdown and it didnt power on since then.
They wont ask a single question after this. All the best
(I did use the same explanation)
Heyy, so when I do this(note I am stuck in recovery mode on the phone), it says Error can't open serial port, reboot and restart. Every time I click download to put the recovery in it it does this.
MXFrodo195 said:
Heyy, so when I do this(note I am stuck in recovery mode on the phone), it says Error can't open serial port, reboot and restart. Every time I click download to put the recovery in it it does this.
Click to expand...
Click to collapse
i experienced same problem in one of my friends computer, but then it was solved when we tried again after fresh install of windows and drivers, better you try on any other computer, i m sure u will get it work.
mak.3736 said:
i experienced same problem in one of my friends computer, but then it was solved when we tried again after fresh install of windows and drivers, better you try on any other computer, i m sure u will get it work.
Click to expand...
Click to collapse
I tried from another computer, it's doing the same exact thing. Any other ideas?
Thats what happens when I click download, when I click Select Image, nothing is happening at all. In recovery should I be mounting anything?(data, sdcard, cache, system). Or should I be mounting the USB Storage? I am just baffled, I must be doing something simple wrong, as it seems pretty straightforward.
Hi,
Thank you for the informations.
after image file selected and started, error message was occured "Error! Partition table"
Plz help...
solenun said:
Hi,
Thank you for the informations.
after image file selected and started, error message was occured "Error! Partition table"
Plz help...
Click to expand...
Click to collapse
I think you are not selecting partion.mbn, download the recovery zip once again and follow below:
there are 2 files in zip, recovery image and other is partition.mbn.
Make sure both the files are selected and ticked while image select.
partition.mbn will be selected in partition table,
recovery.img will be selected in recovery image,
then close the window of image select and press download.
MXFrodo195 said:
I tried from another computer, it's doing the same exact thing. Any other ideas?
Thats what happens when I click download, when I click Select Image, nothing is happening at all. In recovery should I be mounting anything?(data, sdcard, cache, system). Or should I be mounting the USB Storage? I am just baffled, I must be doing something simple wrong, as it seems pretty straightforward.
Click to expand...
Click to collapse
uninstall other phone drivers (nokia , motorola etc.) from computer, reboot, reinstall lg p500 usb drivers, reboot and follow guide as the same.
mak.3736 said:
uninstall other phone drivers (nokia , motorola etc.) from computer, reboot, reinstall lg p500 usb drivers, reboot and follow guide as the same.
Click to expand...
Click to collapse
Don't forget to disable the LGE virtuial modem with tools in the LGDMP after it "sees" the phone(leaving the other LGE modem active) (that is the LGDMP)Also after the disable cmd do not restart your computer(mine suggestes this after).Select your image zip the p500 partition table is included there.You will get about 4 or 5 error windows just ok click them away (ignore) and run download.It takes a short time and then pauses a min. and continues.DO NOT disconnect or stop/cancell anything untill you get a red DOWNLOAD COMPLETE!..I used this a couple of times and feel it a very safe way to flash
is it possible to flash amon ra recovery via LGMDP.exe?
if so, how?
vivithbharath said:
is it possible to flash amon ra recovery via LGMDP.exe?
if so, how?
Click to expand...
Click to collapse
yes , but i didnt test it.
try it by replacing clockwork's recovery.img with amonra's revovey.img in folder u get after extracting the zip of clockwork provided in thread.
(i mean use partition.mbn from clockwork zip in thread and amonra recovery.img and flash with lgmdp)
mak.3736 said:
yes , but i didnt test it.
try it by replacing clockwork's recovery.img with amonra's revovey.img in folder u get after extracting the zip of clockwork provided in thread.
(i mean use partition.mbn from clockwork zip in thread and amonra recovery.img and flash with lgmdp)
Click to expand...
Click to collapse
thanks! will try and post the results
My start button is greyed out, clicking it is useless.
Edit: after selecting the file, I closed the window and clicked download. After backing up my NV, the flash worked.
jasonwsc said:
My start button is greyed out, clicking it is useless.
Edit: after selecting the file, I closed the window and clicked download. After backing up my NV, the flash worked.
Click to expand...
Click to collapse
yes i mentioned in procedure press "start" or "download", its obvious start button will be grayed out as all files are not selected. so close file select window and press "download" in main window..
............
I have added it in steps as well now
Why is it that after I selected the port, the select image button is not doing anything? it's clickable but it does nothing?
bryanposas said:
Why is it that after I selected the port, the select image button is not doing anything? it's clickable but it does nothing?
Click to expand...
Click to collapse
After selecting port , a window will pop up to browse for "image folder" close this poped up window then all the functions of main window of lgmdp will be accesible

L9 Security Error

i Was on JB V20A and i installed the root and the CWM and try to put cwm. to check if bootloader was still locked well it does.
and now im stock on L9 Security error.
i can enter on S/W and tryin using the "UpTestEX_mod2_marwin" the Window enabler and the Http.exe to flash it but.
i try phone mode CS_emergency and emergency but when it start to check the phone it stuck on 15% and i can turn on the phone (thats the way i used to bypass the 15% and get with the instalation)
so what now? i can enter on S/W and Recovery Mode LG (This mode is for data backip at service center. after reboting press power key to keep using phone), still can do hard reset pressing volumen less home and power but nothing happen keep with the error.
i know while the phone turn on there's a solution.
my phone is L9 p768g
just don't view the post and ignore. :/
TY for all the view and the 900000 helps. nvm i solved ty to my fb L9 friends so... jodan
Jctatis said:
TY for all the view and the 900000 helps. nvm i solved ty to my fb L9 friends so... jodan
Click to expand...
Click to collapse
I have the same situation, may I know what your solution is?
twinwoods said:
I have the same situation, may I know what your solution is?
Click to expand...
Click to collapse
This case is very simple to solve. When you try to install a custom recovery with your bootloader locked, the phone system detects it and give you a message of an error in security, like in your case. To solve this, you'll need to reflash your rom. By doing this, the KDZ will reflash the original recovery and you will be able to access your phone/recovery again.
Step by step:
1. You need to install fastboot drivers: http://forum.xda-developers.com/showthread.php?t=2119090
Turn off the phone and remove the battery. Download THIS and exctract it to C:/. Open device manager in windows (Rigt click on Computer > Manage > Device manager) and connect your phone without the battery to pc via USB cable. Look in device manager for a new hardware connected, right click on it and click in update drivers. In the window open, select "Search for software driver in the computer" and in the window open select insert C:\fastboot\usb_drv_windows, tick the option "include subfolders" and advance. A pop up window may appear asking you if you do want to install the driver, choose YES and the drivers will install.
2. Navigate to the folder you extracted (C:/fastboot) and double click on start.bat. It will ask you for administrator privileges, just say yes.
3. Select your phone model (2 for P760, 3 for P765, 4 for P768 and 5 for P769). It will ask you to turn off your phone and remove battery. When you done with that, press enter. It will now ask you to insert USB cable with the phone without the battery and after 4 seconds re-insert the battery. Onde you done with that, it wil return a message to press any key. In this step the fastboot drivers may be installed again. Don't worry, it's normal
4. Remove the battery again, wait a few seconds and re-insert it.
5. Plug the USB cable in the phone with the battery in and let VOL UP pressed. The phone will enter in SW Update mode.
6. Follow THIS to reflash your rom. A list of avaiable official roms of different models is HERE. Remember to only flash roms made for your phone model or you may get some issues.
7. You're all done I recommend using THIS TWEAK, the phone becomes more responsive.
*** If you flashed a JellyBean rom (V20X.kdz) you can easily root with THIS and if you want CWM recovery use THIS ONE ------ REMEMBER NOT TO FLASH ANY CUSTOM ROM WITH THIS RECOVERY BECAUSE I'M CONSIDERING YOUR BOOTLOADER IS LOCKED AND FOR THIS REASON, YOU CANNOT FLASH CUSTOM ROMS WITH CWM, IT JUST DOESNT WORK!!!
Hope it help you
It works!!
shucrut said:
This case is very simple to solve. When you try to install a custom recovery with your bootloader locked, the phone system detects it and give you a message of an error in security, like in your case. To solve this, you'll need to reflash your rom. By doing this, the KDZ will reflash the original recovery and you will be able to access your phone/recovery again.
Step by step:
1. You need to install fastboot drivers:
Turn off the phone and remove the battery. Download THIS and exctract it to C:/. Open device manager in windows (Rigt click on Computer > Manage > Device manager) and connect your phone without the battery to pc via USB cable. Look in device manager for a new hardware connected, right click on it and click in update drivers. In the window open, select "Search for software driver in the computer" and in the window open select insert C:\fastboot\usb_drv_windows, tick the option "include subfolders" and advance. A pop up window may appear asking you if you do want to install the driver, choose YES and the drivers will install.
2. Navigate to the folder you extracted (C:/fastboot) and double click on start.bat. It will ask you for administrator privileges, just say yes.
3. Select your phone model (2 for P760, 3 for P765, 4 for P768 and 5 for P769). It will ask you to turn off your phone and remove battery. When you done with that, press enter. It will now ask you to insert USB cable with the phone without the battery and after 4 seconds re-insert the battery. Onde you done with that, it wil return a message to press any key. In this step the fastboot drivers may be installed again. Don't worry, it's normal
4. Remove the battery again, wait a few seconds and re-insert it.
5. Plug the USB cable in the phone with the battery in and let VOL UP pressed. The phone will enter in SW Update mode.
6. Follow THIS to reflash your rom. A list of avaiable official roms of different models is HERE Remember to only flash roms made for your phone model or you may get some issues.
7. You're all done I recommend using THIS TWEAK , the phone becomes more responsive.
*** If you flashed a JellyBean rom (V20X.kdz) you can easily root with THIS and if you want CWM recovery use THIS ONE ------ REMEMBER NOT TO FLASH ANY CUSTOM ROM WITH THIS RECOVERY BECAUSE I'M CONSIDERING YOUR BOOTLOADER IS LOCKED AND FOR THIS REASON, YOU CANNOT FLASH CUSTOM ROMS WITH CWM, IT JUST DOESNT WORK!!!
Hope it help you
Click to expand...
Click to collapse
Thank you so much. Yes my P769 BOOTLOADER definitely is locked and I can't even root it with all methods provided in xda, I use exactly your method to get my L9 back to life -- although I have to flash it back to original stock but at least it's BACK! Thank you so much. I saw some other people have the same issue but they can't make it work, hopefully your answer shed the light to ALL!
security error just use the lg pc suite and remove the lines or the host put recover via recovery and put your imei and it will start to download the stock Rom
send from cursed G-P768g 4.1.2. Panamà
grupo Facebook L9 latino América: https://m.facebook.com/groups/54638...ity&actorid=1381295152&__user=100001612362905
Thank you soo much!!! you seriously saved me.
shucrut said:
This case is very simple to solve. When you try to install a custom recovery with your bootloader locked, the phone system detects it and give you a message of an error in security, like in your case. To solve this, you'll need to reflash your rom. By doing this, the KDZ will reflash the original recovery and you will be able to access your phone/recovery again.
Step by step:
1. You need to install fastboot drivers: http://forum.xda-developers.com/showthread.php?t=2119090
Turn off the phone and remove the battery. Download THIS and exctract it to C:/. Open device manager in windows (Rigt click on Computer > Manage > Device manager) and connect your phone without the battery to pc via USB cable. Look in device manager for a new hardware connected, right click on it and click in update drivers. In the window open, select "Search for software driver in the computer" and in the window open select insert C:\fastboot\usb_drv_windows, tick the option "include subfolders" and advance. A pop up window may appear asking you if you do want to install the driver, choose YES and the drivers will install.
2. Navigate to the folder you extracted (C:/fastboot) and double click on start.bat. It will ask you for administrator privileges, just say yes.
3. Select your phone model (2 for P760, 3 for P765, 4 for P768 and 5 for P769). It will ask you to turn off your phone and remove battery. When you done with that, press enter. It will now ask you to insert USB cable with the phone without the battery and after 4 seconds re-insert the battery. Onde you done with that, it wil return a message to press any key. In this step the fastboot drivers may be installed again. Don't worry, it's normal
4. Remove the battery again, wait a few seconds and re-insert it.
5. Plug the USB cable in the phone with the battery in and let VOL UP pressed. The phone will enter in SW Update mode.
6. Follow THIS to reflash your rom. A list of avaiable official roms of different models is HERE. Remember to only flash roms made for your phone model or you may get some issues.
7. You're all done I recommend using THIS TWEAK, the phone becomes more responsive.
*** If you flashed a JellyBean rom (V20X.kdz) you can easily root with THIS and if you want CWM recovery use THIS ONE ------ REMEMBER NOT TO FLASH ANY CUSTOM ROM WITH THIS RECOVERY BECAUSE I'M CONSIDERING YOUR BOOTLOADER IS LOCKED AND FOR THIS REASON, YOU CANNOT FLASH CUSTOM ROMS WITH CWM, IT JUST DOESNT WORK!!!
Hope it help you
Click to expand...
Click to collapse
I tried this method and the offline kdz method and here is the trouble I am having.
1. With this method I do everything perfect the device shows up for a couple seconds then it disappears so I cannot go any further.
2. With the offline fix I followed the OP to the letter and when I get to the part where I click on "normal web upgrade" I open it and start the upgrade as stated in the OP and nothing. I get the retry or cancel internet warning and ignore or close it and it will not even try pushing the file.
Anyway I have tried 2 different machines to no avail I am wondering if anyone has had a similar problem and fixed it?
Sent from my GT-I9505G using Tapatalk 2
Didn't work for me! But I tried another method and that saved me from a lot of steps.
Just install the driver and the latest LGMobile Support Tool
Start your phone in Software upgrade mode... Power + Vol up
In the LGMobile Support Tool click on Options and then Upgrade Recovery
Put your IMEI in the option that pops up
Wait for the miracle!
It worked for me ... NO MORE LG SECURITY ERROR
MJHawaii said:
I tried this method and the offline kdz method and here is the trouble I am having.
1. With this method I do everything perfect the device shows up for a couple seconds then it disappears so I cannot go any further.
2. With the offline fix I followed the OP to the letter and when I get to the part where I click on "normal web upgrade" I open it and start the upgrade as stated in the OP and nothing. I get the retry or cancel internet warning and ignore or close it and it will not even try pushing the file.
Anyway I have tried 2 different machines to no avail I am wondering if anyone has had a similar problem and fixed it?
Sent from my GT-I9505G using Tapatalk 2
Click to expand...
Click to collapse
Fixed my phone too. I removed lookout permanently and my phone stopped functioning, so I did the method u said and worked great, I got scared but it worked. Lookout is installed again, I can root again and uproot if I want, it works great again. I recommend this method to all
Sent from my LG-P769 using xda app-developers app
it worked! thanks!
the easiest!!
Owadel said:
Didn't work for me! But I tried another method and that saved me from a lot of steps.
Just install the driver and the latest LGMobile Support Tool
Start your phone in Software upgrade mode... Power + Vol up
In the LGMobile Support Tool click on Options and then Upgrade Recovery
Put your IMEI in the option that pops up
Wait for the miracle!
It worked for me ... NO MORE LG SECURITY ERROR
Click to expand...
Click to collapse
i think this is the easiest method to get back to your "last working condition".. i mean nothng got deleted, nothng chnged.. i'm happy to get rid of the "security error" condition!! thanks a lot
shucrut said:
This case is very simple to solve. When you try to install a custom recovery with your bootloader locked, the phone system detects it and give you a message of an error in security, like in your case. To solve this, you'll need to reflash your rom. By doing this, the KDZ will reflash the original recovery and you will be able to access your phone/recovery again.
Step by step:
1. You need to install fastboot drivers: http://forum.xda-developers.com/showthread.php?t=2119090
Turn off the phone and remove the battery. Download THIS and exctract it to C:/. Open device manager in windows (Rigt click on Computer > Manage > Device manager) and connect your phone without the battery to pc via USB cable. Look in device manager for a new hardware connected, right click on it and click in update drivers. In the window open, select "Search for software driver in the computer" and in the window open select insert C:\fastboot\usb_drv_windows, tick the option "include subfolders" and advance. A pop up window may appear asking you if you do want to install the driver, choose YES and the drivers will install.
2. Navigate to the folder you extracted (C:/fastboot) and double click on start.bat. It will ask you for administrator privileges, just say yes.
3. Select your phone model (2 for P760, 3 for P765, 4 for P768 and 5 for P769). It will ask you to turn off your phone and remove battery. When you done with that, press enter. It will now ask you to insert USB cable with the phone without the battery and after 4 seconds re-insert the battery. Onde you done with that, it wil return a message to press any key. In this step the fastboot drivers may be installed again. Don't worry, it's normal
4. Remove the battery again, wait a few seconds and re-insert it.
5. Plug the USB cable in the phone with the battery in and let VOL UP pressed. The phone will enter in SW Update mode.
6. Follow THIS to reflash your rom. A list of avaiable official roms of different models is HERE. Remember to only flash roms made for your phone model or you may get some issues.
7. You're all done I recommend using THIS TWEAK, the phone becomes more responsive.
*** If you flashed a JellyBean rom (V20X.kdz) you can easily root with THIS and if you want CWM recovery use THIS ONE ------ REMEMBER NOT TO FLASH ANY CUSTOM ROM WITH THIS RECOVERY BECAUSE I'M CONSIDERING YOUR BOOTLOADER IS LOCKED AND FOR THIS REASON, YOU CANNOT FLASH CUSTOM ROMS WITH CWM, IT JUST DOESNT WORK!!!
Hope it help you
Click to expand...
Click to collapse
cant install fastboot drivers windows 10

Soft-Bricked GT540g vs frozen KDZ Updater

Okay guys, I think my phone has a soft brick (no boot logos), so I'm trying to do some restoration... but I'm not having much success.
So, I found a solution in XDA (/showthread.php?t=825173&page=3) saying that I should plug my phone in without battery, SD nor chip and disable the "LG Modem" on my Device Manager. Afterwards, start KDZ Updater and configure it to CS_EMERGENCY. Then I should install a 2.1 French firmware and as soon as KDZ finishes I'd plug off my phone, plug it back in and start it in DL mode again, this time flashing a file named "OUT.kdz", which gives back the boot logos.
Problem: KDZ Updater hangs as soon as I press "Start". It simply freezes when it's in CS_EMERGENCY. I have no solution to this whatsoever, and I also have another thread with previous problems I ran into (Soft-Bricked LG GT540 Optimus).
These are the best forums I've found for any kind of phone, so I'm positive I'll get the help I need, even if I might need to wait some time. Kudos to the admins and every member for taking part of such a great community!​
Ebony Dubois said:
Okay guys, I think my phone has a soft brick (no boot logos), so I'm trying to do some restoration... but I'm not having much success.
So, I found a solution in XDA (/showthread.php?t=825173&page=3) saying that I should plug my phone in without battery, SD nor chip and disable the "LG Modem" on my Device Manager. Afterwards, start KDZ Updater and configure it to CS_EMERGENCY. Then I should install a 2.1 French firmware and as soon as KDZ finishes I'd plug off my phone, plug it back in and start it in DL mode again, this time flashing a file named "OUT.kdz", which gives back the boot logos.
Problem: KDZ Updater hangs as soon as I press "Start". It simply freezes when it's in CS_EMERGENCY. I have no solution to this whatsoever, and I also have another thread with previous problems I ran into (Soft-Bricked LG GT540 Optimus).
These are the best forums I've found for any kind of phone, so I'm positive I'll get the help I need, even if I might need to wait some time. Kudos to the admins and every member for taking part of such a great community!​
Click to expand...
Click to collapse
I've fixed all my issues! I'll paste what I said in another thread. Yay for one-full-year struggles!
Just wanted to leave my 2 cents here, I've been trying to do my best since around august 2014, no success. 2 days ago I retried this, and I DID IT! I will tell everyone what I did very shortly:
My problem that I solved: I can boot, device works like a charm. But: no boot logos, no recovery.
My solution for TL;DR: UNINSTALL ALL DRIVERS FROM DEVICE MANAGER 1ST, then reinstall. After that, flash a fastboot ROM and use it to WIPE ALL THE DATA IN YOUR PHONE! THIS was what I needed and was never explained: you had to WIPE the old data in order to get the boot screens back.
IN THIS ORDER (THANK YOU to those people from previous replies, gathering all your info was of great value):
Uninstall all of your phone drivers from your PC!!! This is what made most of my headaches go away, just use Device Manager and uninstall anything from LGE. After that, plug in your device in your USB ports (always BACK ports, not front ports, important). It should detect all drivers and download them.
IF it fails (it generally does with LGE USB Modem), you can go to Device Manager > Unknown Device (the one that wasn't recognized) > Right Click and Update > Choose 2nd option, then choose "choose from a list of local controllers" (or whatever the button says). After that, scroll down to LG Electronics, Inc. and install what didn't install.
I also found these drivers, but I did not test them: http://www.mediafire.com/download/p693hcz6kkouh19/USB_Driver_LG_GT540.zip
Huzzah!
Now you're set to begin:
FIRST thing you wanna do is a factory reset, this is something I'd forgotten with time, don't make the same mistake as I did. You can do it by turning your phone on and pressing Volume +/- & Home & Quick Search buttons all together for 5 seconds (it works, be patient and wait for it, even if you open the camera or any other stuff).
Download this Google SDK Tools (unzip and put the folder in C:\ drive) and this Fastboot drivers for GT540 (unzip and put the files inside the folder in C:\android-sdk).
Skip this next line if you know your ROM has fastboot.
Now, if you don't have a ROM with fastboot, I recommend you use either European Open+Fastboot or V20C Orange France Fastboot ROM.
Click to expand...
Click to collapse
Since you have Fastboot enabled, now all you need to do is turn off your device (all this with its battery on it, no weird things) and hold the Camera button before turning it back on. This should take you either to a black screen, or simply to no display, like me. Either one will work anyways.
Now press the Windows key > Type cmd and open it with Right Click > Run as Administrator.
In it, type all this, command by command (you can paste by right clicking):
cd C:\android-sdk
fastboot -w
fastboot erase boot
fastboot erase system
fastboot -w
fastboot reboot
Click to expand...
Click to collapse
And now it's go time! Do what everyone else says in here: Take out your phone's battery, SD and SIM cards, fire KDZ Updater up as Administrator (If your KDZ freezes, then it's either faulty or you did not install msxml, look for a good KDZ that comes with that file and delete your current one), choose CS_Emergency PhoneMode and:
1-Plug your phone while holding the volume DOWN button (don't worry! My phone didn't show "Download Mode" either, if you hear the Windows "Somethingpluggedin" Bump noise, it's ok).
2-Flash French V20A
3-Unplug your phone once KDZ says "==FINISHED==".
4-Plug it once again, holding the volume DOWN button.
5-Flash out.kdz (remember! it's CS_Emergency).
Click to expand...
Click to collapse
THANK YOU XDA!

LENOVO Tab 3 8' (TB3-850F) UNBRICK, ROOT and TWRP recovery - HOW TO

Hi all!!
This is for all the people who managed to softbrick (or hardbrick) their Lenovo Tab 3 8' (TB3-850F) tablets!
All you will need link, at the end of the post. I don't know for how long it will be up, but you can use it for now.
By the way.... Should you find something useful here... please hit the thanks button in the end
A. Unbrick
This requires flashing a clean stock rom. You will need:
a. stock rom for the TB3-850F (Google is you friend )
b. Sp Flashtool (you can download from their official site). From there, also download the MediaTek USB VCOM drivers and Driver Auto Installer v1.1236.00 (or any latest version).
Steps:
1. Install the windows drivers you downloaded
Note : If you encounter problems installing Windows drivers in Windows 10, google how to install unsigned drivers in Win10
2. Open the folder you extracted SP Flashtool and run it as administrator.
3. Unzip the rom file you downloaded.
4. Inside the folder of your unzipped rom file, look for a file similar to XXXXXXXXXX_scatter_file.txt
5. Load this in the SP Flashtool (click downlad tab, then scatter loading, load this file in there. It should load your rom you will see some colours, etc...
The tricky part:
Assuming you have correctly installed the drivers:
1. turn off the device (well if bricked it is turned off all ready) just make sure, and in SP Flashtool click options and 'with battery'.
2. Click the green download button on SP Flashtool.
3. Hold down the Vol down key on your device and connect it to a usb port.
4. If you see a red line and continue to yellow, all is probably good! Don't let go of the vol - button until yellow line reaches 100%
B. Root and TWRP recovery
This requires that you have or download:
a. platform tools (adb and fastboot)
b. a twrp.img (image file) for the lenovo TB3-850F copied to external SD Card and platform tools folder (google is... useful )
c. latest supersu.zip (flashable) copied to an external SD CARD
d. busybox.apk
Steps:
1. Grab tablet, go to settings ---> about tablet ---> click version number 7 times to enable developer options
2. From settings again click developer options and enable OEM Unlocking and usb debugging
3. Navigate in the platform tools folder. While holding SHIFT right click and select open commandline here (or similar)
4. Connect tablet to PC and in the command line issue: adb devices
If a weird number shows up and says device on the left you are all good to continue.
5. Now on the command prompt again issue: adb reboot bootloader
Your tablet should now reboot to fastboot (big Android, laying down)
6. Issue command: fastboot oem unlock (also check tablet screen for confirmation)
Wait a little bit and reboot your tablet. (should work with holding the power key down for a little longer than 10 seconds. If not hold down volume key and power button for the same amount of time - tested and working)
**At this point it is ESSENTIAL to leave the tablet to fully boot. The bootloader unlock triggers a FACTORY RESET which you must leave to complete and set up your tablet from the beginning.
** It is also ESSENTIAL to complete the boot and set up cycle because, after the automatic factory reset you will need to RE-ENABLE developer options and usb debugging. Once you are done continue to 7.
7. In the platform tools folder copy the twrp.img (you should have downloaded earlier, check upwards... )
8. Open the command line again and type:
a. adb reboot bootloader
b. fastboot boot twrp.img
** This will load up TWRP recovery only for this boot time.
****BE EXTRA CAUTIUS TO -NOT- ALLOW twrp to make modifications. Essential! Should you do otherwise go back to how to unbrick your tablet.
9. Choose install, and install supersu.zip.
10. Choose reboot to system and allow complete boot cycle! Essential!
11. Your tablet should now be rooted. However to succesfully flash the twrp recovery you need to have Busybox installed. Download as .apk and install it (at the time of writing this I believe Busybox 54 is the latest version).
12. Once installed back to the windows terminal and issue:
a. adb reboot bootloader
b. fastboot boot twrp.img
ONCE AGAIN - DO -NOT- ALLOW twrp to make modifications!!!!!
13. From you external SD Card install twrp.img, select recovery when prompted.
14. Reboot to system and enjoy!!!!
Note : Install an app that makes it easy to boot to recovery. (I personally use root essentials - Trying the combination keys did nothing for me, or just poped up the chinese options menu. That does not mean the recovery has not been installed correctly. Booting to recovery from rootessential menu, boots straight to twrp)
All you will need and credits:
https://drive.google.com/drive/fold...ourcekey=0-SDvJaXtWWk-TY9B53ct8dw&usp=sharing (thanks button, thanks button, thanks button!!! )
Results:
(it is in Greek, but you get the idea )
Hope I have helped! Happy playing with the commands and whole process! :good:
Lastly, if you get stuck at any point, you can either use this thread or PM me for further advice, explanation and/or any kind of assistance.
Note: Special thanks to @MotoJunkie01 for actually taking the time to further help people on this thread, as unfortunately I do not currently have the time to do so myself. It is worth checking out @MotoJunkie01 's threads also. There, you can find very useful and updated information.
r&xp said:
Hi all!!
This is for all the people who managed to softbrick (or hardbrick) their Lenovo Tab 3 8' (TB3-850F) tablets!
If you find it useful, just hit thanks in the end
A. Unbrick
This requires flashing a clean stock rom. You will need:
a. stock rom for the TB3-850F (Google is you friend )
b. Sp Flashtool (you can download from their official site). From there, also download the MediaTek USB VCOM drivers and Driver Auto Installer v1.1236.00
Steps:
1. Install the windows drivers you downloaded
2. Open the folder you extracted SP Flashtool and run it as administrator.
4. Unzip the rom file you downloaded.
4. Inside the folder of your unzipped rom file, look for a file similar to XXXXXXXXXX_scatter_file.txt
5. Load this in the SP Flashtool (click downlad tab, then scatter loading, load this file in there. It should load your rom you will see some colours, etc...
The tricky part:
Assuming you have correctly installed the drivers:
1. turn off the device (well if bricked it is turned off all ready) just make sure, and in SP Flashtool click options and 'with battery'.
2. Click the green download button on SP Flashtool.
3. Hold down the Vol down key on your device and connect it to a usb port.
4. If you see a red line and continue to yellow, all is probably good! Don't let go of the vol - button until yellow line reaches 100%
B. Root and TWRP recovery
This requires that you have or download:
a. platform tools (adb and fastboot)
b. a twrp.img (image file) for the lenovo TB3-850F copied to external SD Card and platform tools folder (google is... useful )
c. latest supersu.zip (flashable) copied to an external SD CARD
d. busybox.apk
Steps:
1. Grab tablet, go to settings ---> about tablet ---> click version number 7 times to enable developer options
2. From settings again click developer options and enable OEM Unlocking and usb debugging
3. Navigate in the platform tools folder. While holding SHIFT right click and select open commandline here (or similar)
4. Connect tablet to PC and in the command line issue: adb devices
If a weird number shows up and says device on the left you are all good to continue.
5. Now on the command prompt again issue: adb reboot bootloader
Your tablet should now reboot to fastboot (big Android, laying down)
6. Issue command: fastboot oem unlock (also check tablet screen for confirmation)
Wait a little bit and reboot your tablet.
**At this point it is ESSENTIAL to leave the tablet to fully boot. The bootloader unlock triggers a FACTORY RESET which you must leave to complete and set up your tablet from the beginning.
** It is also ESSENTIAL to complete the boot and set up cycle because, after the automatic factory reset you will need to RE-ENABLE developer options and usb debugging. Once you are done continue to 7.
7. In the platform tools folder copy the twrp.img (you should have downloaded earlier, check upwards... )
8. Open the command line again and type:
a.adb reboot bootloader
b.fastboot boot twrp.img
** This will load up TWRP recovery only for this boot time.
****BE EXTRA CAUTIUS TO -NOT- ALLOW twrp to make modifications. Essential! Should you do otherwise go back to how to unbrick your tablet.
9. Choose install, and install supersu.zip.
10.Choose reboot to system and allow complete boot cycle! Essential!
11.Your tablet should now be rooted. However to succesfully flash the twrp recovery you need to have Busybox installed. Download as .apk and install it (at the time of writing this I believe Busybox 54 is the latest version.
12.Once installed back to the windows terminal and issue:
a.adb reboot bootloader
b.fastboot boot twrp.img
ONCE AGAIN - DO -NOT- ALLOW twrp to make modifications!!!!!
13. From you external SD Card install twrp.img, select recovery when prompted.
14. Reboot to system and enjoy!!!!
Note 1: Install an app that makes it easy to boot to recovery. (I personally use root essentials - Trying the combination keys did nothing for me, or just poped up the chinese options menu. That does not mean the recovery has not been installed correctly. Booting to recovery from rootessential menu, boots straight to twrp)
Note 2: If you encounter problems installing Windows drivers in Windows 10, google how to install unsigned drivers in Win10
I apologize for not being able to post links, but I believe the required software is not particularly hard to find.
Hope I have helped! Happy playing with the commands and whole process! I will continue to help as much as I can :good:
Click to expand...
Click to collapse
Good guide. This tablet has temperamental steps involved with custom recovery and root. This guide gives a good outline of those steps. Here is a link to my thread for Stock Android 6.0 firmware for this tablet for members who need a stock ROM.
https://forum.xda-developers.com/android/general/rom-lenovo-tab-3-8-tb3-850f-android-6-0-t3593043
---------- Post added at 09:08 PM ---------- Previous post was at 09:06 PM ----------
Sorry, didn't mean to quote the entire OP....
MotoJunkie01 said:
Good guide. This tablet has temperamental steps involved with custom recovery and root. This guide gives a good outline of those steps. Here is a link to my thread for Stock Android 6.0 firmware for this tablet for members who need a stock ROM.
https://forum.xda-developers.com/android/general/rom-lenovo-tab-3-8-tb3-850f-android-6-0-t3593043
---------- Post added at 09:08 PM ---------- Previous post was at 09:06 PM ----------
Sorry, didn't mean to quote the entire OP....
Click to expand...
Click to collapse
Thank you, I appreciate your comment. I was really enthusiastic to read that you are working on a pure Stock Android 6.0 ROM for this device! Will definitely be waiting for that!
Thank you again!
r&xp said:
Thank you, I appreciate your comment. I was really enthusiastic to read that you are working on a pure Stock Android 6.0 ROM for this device! Will definitely be waiting for that!
Thank you again!
Click to expand...
Click to collapse
Thank you for the encouragement. I am in hopes that we can eventually get a dedicated device forum for the tb3-850f. I truly believe this tablet has the potential for plenty of future development.
@r&xp I love you so much, I was in the same predicament as you and you helped get my tablet running again. Just wanted to mention, I had to hold volume down when plugging in the USB for the SPFT step instead of volume up. THANK YOU AGAAAAAAAAAAIN <3
Rimmir said:
@r&xp I love you so much, I was in the same predicament as you and you helped get my tablet running again. Just wanted to mention, I had to hold volume down when plugging in the USB for the SPFT step instead of volume up. THANK YOU AGAAAAAAAAAAIN <3
Click to expand...
Click to collapse
Thanks for the comment!!! :silly:
Glad it worked for you. Isn' t it like a really good feeling when you actually see your bricked device boot correctly for the first time after you had almost deemed it unusable???
(also... a... small request... could you please click on that thingy... you know... that ehhh... thanks button??? :angel::angel:)
Just an update, since damaging my TB3-850F, I have since ordered another unit from Office Depot which is due to be delivered Monday or Tuesday. Once it arrives, I'll finish my TWRP flashable stock 6.0 ROM for this device and start back on the modified stock ROM.
r&xp said:
Thanks for the comment!!! :silly:
Glad it worked for you. Isn' t it like a really good feeling when you actually see your bricked device boot correctly for the first time after you had almost deemed it unusable???
(also... a... small request... could you please click on that thingy... you know... that ehhh... thanks button??? :angel::angel:)
Click to expand...
Click to collapse
Lol yessir, thanked!
MotoJunkie01 said:
Just an update, since damaging my TB3-850F, I have since ordered another unit from Office Depot which is due to be delivered Monday or Tuesday. Once it arrives, I'll finish my TWRP flashable stock 6.0 ROM for this device and start back on the modified stock ROM.
Click to expand...
Click to collapse
Looking forward to it. I picked mine up from walmart just yesterday for using as a google maps/car media center
My Lenovo Tab 3 replacement finally arrived in the mail. I'll be picking up where I left off on compiling both unmodified stock and custom stock-based ROMs for this tablet.
On my modified stock based ROM, I'm considering the implementation of Substratum (Root Ver) for theming, but I would like to get the input of other device owners first. So far, I have debloated, deodexed and zipaligned the OS. I am including the modified/patched boot image with SuperSU v2.79 SR3 binaries installed for systemless root, Nova Launcher, Pixel Icon Pack, BusyBox v1.26.2 binaries pre-injected in /su/xbin/, and Kernel Adiutor-Mod installed in /system/apps/ for user defined adjustments to the stock kernel and governors.
You guys please give me input on what you would like included in the ROM. Thanks
r&xp said:
Hi all!!
This is for all the people who managed to softbrick (or hardbrick) their Lenovo Tab 3 8' (TB3-850F) tablets!
Click to expand...
Click to collapse
I had a Lenovo Tab3 that bricked during the initial set up and this saved me for having an expensive paperweight! The process worked like a charm. You ROCK!
chienfou said:
I had a Lenovo Tab3 that bricked during the initial set up and this saved me for having an expensive paperweight! The process worked like a charm. You ROCK!
Click to expand...
Click to collapse
Really glad it worked for you!!!
Thumbs up! :good::good:
load the scatter file .txt in SP Flashrom is OK ... it show me purple color until finish loading the file.
but how come when I hit the green button Download, it seems like nothing downloading,
thanks God, and thank you so muchhh muchhh muchhh for saving my tablet... after 2 days struggling with this brick
thank you the topic thread and MotoJunkie01 led me here :crying::fingers-crossed:
yiukiang said:
thanks God, and thank you so muchhh muchhh muchhh for saving my tablet... after 2 days struggling with this brick
thank you the topic thread and MotoJunkie01 led me here :crying::fingers-crossed:
Click to expand...
Click to collapse
Try again to get TWRP installed to your /recovery partition or, alternatively, try to simply boot into TWRP from fastboot with the fastboot boot twrp.img command. It is common for members to experience some difficulty in installing custom recovery on this device. It has been my experience that most members are successful the second time around.
Thanks MotorJunkie!! But mine after was saved from brick from this thread, i was rooted it also by your instructions from other thread.. Now the gps from GoogleMap doesn't determine the location (even the location already turned on ) ... Plus i couldn't check the systemupdate ( it says connection network failed even i was connecting to wifi already) ...
What should i do, or do you know how to fix it?
yiukiang said:
Thanks MotorJunkie!! But mine after was saved from brick from this thread, i was rooted it also by your instructions from other thread.. Now the gps from GoogleMap doesn't determine the location (even the location already turned on ) ... Plus i couldn't check the systemupdate ( it says connection network failed even i was connecting to wifi already) ...
What should i do, or do you know how to fix it?
Click to expand...
Click to collapse
System updates (OTAs) won't install on rooted operating systems. To install an OTA, you must have unmodified stock /boot, /system, and /recovery partitions installed. On the GPS issue, go to Settings, Apps, and ensure Google Maps has been granted location access permission.
Hi ...
I followed this guide but during the unbricking' I unplugged the device from USB (since I could not see any input on device or indication in SP Flash Tool).
Now the device will not turn on at all (previously I would see the Lenovo Logo splash screen but then it would just stay at this screen. Now i do not see anything).
When I plug into computer by USB, it causes my computer to freeze up (Windows 10).
Any ideas or is this now completely bricked? (hard bricked).
xavier234 said:
Hi ...
I followed this guide but during the unbricking' I unplugged the device from USB (since I could not see any input on device or indication in SP Flash Tool).
Now the device will not turn on at all (previously I would see the Lenovo Logo splash screen but then it would just stay at this screen. Now i do not see anything).
When I plug into computer by USB, it causes my computer to freeze up (Windows 10).
Any ideas or is this now completely bricked? (hard bricked).
Click to expand...
Click to collapse
It sounds like a hard brick. I can't speak for the OP, @r&xp on this, so you may want to get his advice. Have you tried the OP's methods of using your hardware buttons for forcing the device into adb/fastboot recognition? I think this is your only chance of recovering it. By it not powering on, from my experience, a bootloader or bootloader dependent partition has been corrupted, thus hard bricking the tablet.
MotoJunkie01 said:
It sounds like a hard brick. I can't speak for the OP, @r&xp on this, so you may want to get his advice. Have you tried the OP's methods of using your hardware buttons for forcing the device into adb/fastboot recognition? I think this is your only chance of recovering it. By it not powering on, from my experience, a bootloader or bootloader dependent partition has been corrupted, thus hard bricking the tablet.
Click to expand...
Click to collapse
Hello, I'll weigh in on this one. There are multiple threads above the TB3-850F on this forum and also another forum.
I initially followed a different thread and instructions which caused my problem. Notably do not allow TWRP write access !!! This mistake caused the soft-brick.
Anyone following any other advice about TB3-850F or downloading any other image BEWARe. Only follow the advice in this thread by r&xp:
https://forum.xda-developers.com/android/help/lenovo-tab-3-8-tb3-850f-unbrick-root-t3598727
Following this advice I now restored original image and then rooted in just a few hours.. Thank you r&xp for the good advice. :laugh:

Ulefone power 2

hi folks,
tomorow should be getting my hands on the Ulephone power 2.
its the 5.5 screen 4gb ram 64gb rom.
all looks good until i have seen that the normal duel sim is one is hybrid for sdcard which is the norm right,
ant
but............
usually its sim 1 is for 4g cards and the hybrid is for 2g/3g/sdcard. yeah?
well the power 2 looks like its sim slot 1 is a 2g/3g slot and the hybrid is 4g or sdcard??????????
so will have to choose 4g or sdcard??? that cant be right?
I don't try this device with sim.
I know you can use the older power (1) have a sim 4g and SD card
So i believe the power 2 have the same method.
My first steps: How to root this device? i don't find a twrp.
I try to root with kingroot kingoroot, no results
Please?
The power 2 is the same as the power wrt the sim/memory card tray; both sim slots support 4g, but only one at a time. So if you put two 4g sims in, only one of them will have 4g (you choose which one), with a sim and a memory card the 4g should default to the inserted sim, but you might have to check this in settings.
Received my power 2 a couple of weeks ago after having it on pre-order for a month and I love it (sold the original power towards the cost).
I haven't tried rooting it yet, but was thinking of trying to flash twrp for the original power and seeing if that works. The great thing about these phones is that they're very hard to brick as you can always flash them as long as they still switch on.
Slàinte
mmidders
Hello my friends. I just bought the ulefone power 2 and i try to root it. Can anyone help me pls ???
mmidders said:
The power 2 is the same as the power wrt the sim/memory card tray; both sim slots support 4g, but only one at a time. So if you put two 4g sims in, only one of them will have 4g (you choose which one), with a sim and a memory card the 4g should default to the inserted sim, but you might have to check this in settings.
Received my power 2 a couple of weeks ago after having it on pre-order for a month and I love it (sold the original power towards the cost).
I haven't tried rooting it yet, but was thinking of trying to flash twrp for the original power and seeing if that works. The great thing about these phones is that they're very hard to brick as you can always flash them as long as they still switch on.
Slàinte
mmidders
Click to expand...
Click to collapse
I'm sure it's not working the twrp from the power (1).
If you have troubles with bootloops you can flash again the facatory rom and SP flash tools.
Press the power volume + and - and SP flash tools gonna flash.
The only way is to made a twrp from the k6000 http://fvknl.pro/k6000-plus-root-guide/
I don't know how, that device is almost the same...
There has been 2 ulefone Updates since launch
Android 8.0 is scheduled for end of the year.
Updates are fine, who can create a TWRP? So we can finally root the device
geheimke said:
Updates are fine, who can create a TWRP? So we can finally root the device
Click to expand...
Click to collapse
up
TWRP please!
Not so easy to do it. It will take very long time to port or build twrp
It sucks that power 2 still doesn't have root or twrp. I refuse to touch unrooted phones. I just received it as gift. I will keep it in a drawer and check next month or so.
I find that it lacks optimisation, kinda laggy in 3D/games ..
On Antutu, scores is 44000. I tested a galaxy S5 of a friend, it was 72000. For a phone that is several years older than Power 2.
I understand that it comes not with high end cpu/gpu but still..
I will copy my post from needrom website.
I have successfully rooted my two Power 2 phones. I had to port the TWRP recovery from Oukitel k6000 plus using Carliv Image Kitchen and following some online tutorials.
The only issue is, TWRP is semi functional, that is, touch doesn't work. I had to connect a mouse to my phone via OTG usb port and using some dongle to make USB smaller to fit the port. Also it comes with Russian language as default, but can be changed to English or any other as the original TWRP from Oukitel k6000+ (3rd button from second column, then click on Globe tab at the top right then choose English and the only button at the bottom to accept the change).
I am trying to fix this with no luck so far. But at least I am rooted and I was able to flash "SR1-SuperSU-v2.82-SR1-20170608224931.zip" which is the latest as of writing this. SuperSu functions properly and I am able to use AdAway.
If anyone is interested in the recovery image, I will post it. I flashed it using fastboot though after unlocking the bootloader using "fastboot oem unlock"
Click to expand...
Click to collapse
Rebel_X said:
I will copy my post from needrom website.
Click to expand...
Click to collapse
I would very much like to give this a go with my ulefone power 2!
Here you go, TWRP for Ulefone Power 2
What you need to do before you start flashing:
0) You need to have ADB installed on your computer, if you have Windows, the easiest way is by using 15 Seconds ADB Installer v1.4.3.
1) Your bootloader must be unlocked, otherwise flashing recovery will fail using fastboot command. PLEASE NOTE: When unlocking the bootloader, your phone will do a factory reset automatically, so backup all your important files beforehand.
To unlock the bootloader:
a) Go to Settings -> About Phone -> Build number (tap on it 7 times to unlock Developer Options) -> Tap on back to Settings menu then Developer Options.
b) Now move the slider for "OEM Unlocking" to enable it, say yes to the warning message.
c) Enable "USB Debugging"
d) Connect your phone to your computer via USB cable, say Yes for the dialog on your phone to trust your computer for debugging using USB.
e) Run command prompt and type
Code:
adb reboot bootloader
Then press enter
f) Once in bootloader, type
Code:
fastboot oem unlock
Then press Volume UP on your phone to allow OEM Unlock. It shouldn't take long, just few seconds and a message will appear on command prompt saying success or OK.
g) Type
Code:
fastboot reboot
To reboot your phone, it might reboot twice, it will do a factory reset and you will have to "Enable Developer Options and USB Debugging" again. As a side note, you will also notice that OEM Unlocking is grayed out. It will remain like that unless you do "fastboot oem lock" or erase the entire phone (might erase imei, but can be restored using SN Writer Tool) and/or flash bootloader using SP_FLASH_TOOL, but I digress.
2) Before you flash TWRP recovery, you must have SuperSu zip file on your phone beforehand, otherwise, your phone will not boot to Android. It has to do with something about the original TWRP for Oukitel k6000+, since the author of that TWRP port said so in the instructions about how to flash the recovery.
So download SR1-SuperSU-v2.82-SR1-20170608224931.zip from this link or the original SuperSu thread on XDA, and copy the file into your phone, say inside the Download folder in the internal memory of your phone.
3) Open command prompt again if it is not already open, type
Code:
adb reboot bootloader
4) Once in bootloader, type
Code:
fastboot flash recovery C:\TWRP-recovery-20170618-1340.img
Note: You replace the path for the TWRP recovery to where you have the file, to make it easier, just put it in the root of C drive.
Also, if you don't already know, while in command prompt, you can type C:\TWRP then press TAB to auto-complete the file name for you, so you don't have to type lengthy file names. Keep pressing TAB to cycle between similar occurrences, that is, if you have more than one file that their names start with TWRP
5) Press power button until phone shuts down. Then press Volume UP + Power and keep holding until you see super tiny text with 3 options to cycle between. Release your fingers from Volume Up + Power, then cycle between the options using Volume Up only, choose "RECOVERY" which is the first in the menu, then press Volume DOWN to select.
6) Wait a few seconds, you will be inside TWRP, connect your phone with a mouse since touch doesn't work here. Once you do, you will see a mouse pointer appear. I used a wireless mouse with bluetooth dongle, with an adapter to change USB port size.
7) Slide the slider to the right, to enable modifications to System partition. Don't press anything else, unless you know Russian, I don't .
8) To change the language to English or your own language, click on the third button of the second column. Then click on the Globe tab on the top right corner, change language, then press the only button at the bottom to accept. Language of the UI is changed.
9) Click "Install", browse for the SuperSu zip file you have downloaded to your phone, for example inside the Download folder. And then select it.
10) Slide to the right to flash SuperSu.
11) From the TWRP menus, you can reboot your phone.
12) Enjoy your rooted Power 2 phone. :good:
---------- Post added at 04:47 AM ---------- Previous post was at 04:47 AM ----------
alpsayin said:
I would very much like to give this a go with my ulefone power 2!
Click to expand...
Click to collapse
Check the post above :good:
hello , i got a ulefone power 2 but unfortunately its not powering on. As i am from india and returning or replacing is costly and timetaking process, i need you guys to help me. I tried to flash it with software available on the website but stuck. I need some checksum.ini file which is not there in the firmware file provided. So anyone please help me. the phone doesnt even show the ulefone logo. i can just see the charging percentage when the charger is connected, then keeping it connected i tried to turn on but didnt work. keeping the charger connected ,after some time the display goes off and no mater how long you press the power button , the display doesnt show up. I can only see the notification bulb.
Soft bricked :laugh: trying to recover the phone, official ulefone guide is useless. Getting some error about a missing checksum.ini file. Will keep this thread updated
All went well until step 9, where I realised factory reset deleted the supersu zip. So I tried to reboot into system to download it again. It never booted. Doesnt even go into adb mode.
Fastboot mode and TWRP intact (TWRP needs a mouse). I was able to flash original recovery via fastboot, getting "cannot load system.img" error when I try to flash system (it appears I might need to update my adb/fastboot version).
UPDATE: was able to flash the stock rom. And tried to follow the guide again, and faced the same symptoms. If i have working TWRP, then the system doesnt boot. And vice-versa. Will keep updated, i'm a persistent mf
Rebel_X said:
Here you go, TWRP for Ulefone Power 2
What you need to do before you start flashing:
0) You need to have ADB installed on your computer, if you have Windows, the easiest way is by using 15 Seconds ADB Installer v1.4.3.
1) Your bootloader must be unlocked, otherwise flashing recovery will fail using fastboot command. PLEASE NOTE: When unlocking the bootloader, your phone will do a factory reset automatically, so backup all your important files beforehand.
To unlock the bootloader:
a) Go to Settings -> About Phone -> Build number (tap on it 7 times to unlock Developer Options) -> Tap on back to Settings menu then Developer Options.
b) Now move the slider for "OEM Unlocking" to enable it, say yes to the warning message.
c) Enable "USB Debugging"
d) Connect your phone to your computer via USB cable, say Yes for the dialog on your phone to trust your computer for debugging using USB.
e) Run command prompt and type
Code:
adb reboot bootloader
Then press enter
f) Once in bootloader, type
Code:
fastboot oem unlock
Then press Volume UP on your phone to allow OEM Unlock. It shouldn't take long, just few seconds and a message will appear on command prompt saying success or OK.
g) Type
Code:
fastboot reboot
To reboot your phone, it might reboot twice, it will do a factory reset and you will have to "Enable Developer Options and USB Debugging" again. As a side note, you will also notice that OEM Unlocking is grayed out. It will remain like that unless you do "fastboot oem lock" or erase the entire phone (might erase imei, but can be restored using SN Writer Tool) and/or flash bootloader using SP_FLASH_TOOL, but I digress.
2) Before you flash TWRP recovery, you must have SuperSu zip file on your phone beforehand, otherwise, your phone will not boot to Android. It has to do with something about the original TWRP for Oukitel k6000+, since the author of that TWRP port said so in the instructions about how to flash the recovery.
So download SR1-SuperSU-v2.82-SR1-20170608224931.zip from this link or the original SuperSu thread on XDA, and copy the file into your phone, say inside the Download folder in the internal memory of your phone.
3) Open command prompt again if it is not already open, type
Code:
adb reboot bootloader
4) Once in bootloader, type
Code:
fastboot flash recovery C:\TWRP-recovery-20170618-1340.img
Note: You replace the path for the TWRP recovery to where you have the file, to make it easier, just put it in the root of C drive.
Also, if you don't already know, while in command prompt, you can type C:\TWRP then press TAB to auto-complete the file name for you, so you don't have to type lengthy file names. Keep pressing TAB to cycle between similar occurrences, that is, if you have more than one file that their names start with TWRP
5) Press power button until phone shuts down. Then press Volume UP + Power and keep holding until you see super tiny text with 3 options to cycle between. Release your fingers from Volume Up + Power, then cycle between the options using Volume Up only, choose "RECOVERY" which is the first in the menu, then press Volume DOWN to select.
6) Wait a few seconds, you will be inside TWRP, connect your phone with a mouse since touch doesn't work here. Once you do, you will see a mouse pointer appear. I used a wireless mouse with bluetooth dongle, with an adapter to change USB port size.
7) Slide the slider to the right, to enable modifications to System partition. Don't press anything else, unless you know Russian, I don't .
8) To change the language to English or your own language, click on the third button of the second column. Then click on the Globe tab on the top right corner, change language, then press the only button at the bottom to accept. Language of the UI is changed.
9) Click "Install", browse for the SuperSu zip file you have downloaded to your phone, for example inside the Download folder. And then select it.
10) Slide to the right to flash SuperSu.
11) From the TWRP menus, you can reboot your phone.
12) Enjoy your rooted Power 2 phone. :good:
---------- Post added at 04:47 AM ---------- Previous post was at 04:47 AM ----------
Check the post above :good:
Click to expand...
Click to collapse
mbs.yaswanth said:
hello , i got a ulefone power 2 but unfortunately its not powering on. As i am from india and returning or replacing is costly and timetaking process, i need you guys to help me. I tried to flash it with software available on the website but stuck. I need some checksum.ini file which is not there in the firmware file provided. So anyone please help me. the phone doesnt even show the ulefone logo. i can just see the charging percentage when the charger is connected, then keeping it connected i tried to turn on but didnt work. keeping the charger connected ,after some time the display goes off and no mater how long you press the power button , the display doesnt show up. I can only see the notification bulb.
Click to expand...
Click to collapse
Yeah, I had the same issue with the software that comes from Ulefone, it was asking for Checksum Generator that I have to download separately, it was like 150kb stand alone executable, you put it in the same folder of your stock ROM and wait forever for it to build the Checksum, which unfortunately didn't work since it complains about multiple RECOVRY images. So scratch that.
What you need to do, is as I did, download SP FLASH TOOL, it works great, no shinanigans or bullsh!t. It flashed the stock ROM in less than 2 minutes (around 1:30 seconds, to be exact) and revived my phone. There are plenty of youtube tutorials on how to use it. It is easy, just load the scatter file, for the other file, you can use the same all in one mtk file that comes with SP FLash Tool (I did this) or use the one from your STOCK ROM.
I hope that helps :good:
---------- Post added at 02:33 PM ---------- Previous post was at 02:27 PM ----------
alpsayin said:
Soft bricked :laugh: trying to recover the phone, official ulefone guide is useless. Getting some error about a missing checksum.ini file. Will keep this thread updated
All went well until step 9, where I realised factory reset deleted the supersu zip. So I tried to reboot into system to download it again. It never booted. Doesnt even go into adb mode.
Fastboot mode and TWRP intact (TWRP needs a mouse). I was able to flash original recovery via fastboot, getting "cannot load system.img" error when I try to flash system (it appears I might need to update my adb/fastboot version).
UPDATE: was able to flash the stock rom. And tried to follow the guide again, and faced the same symptoms. If i have working TWRP, then the system doesnt boot. And vice-versa. Will keep updated, i'm a persistent mf
Click to expand...
Click to collapse
All I can think of, you did something wrong. Initially, while I was trying to port TWRP, I had the same issue, I was trying to save some steps by flashing the recovery after I unlocked the bootloader without rebooting, the result was TWRP was not able to see any partitions.
Flash Stock-ROM and redo the steps. If you flash the preloader you might have to OEM Unlock your phone again.
I mentioned that if you "do not flash SuperSu, the system will NOT boot to Android". Also mentioned that after you unlock the bootloader, you have to RE-ENABLE USB Debugging, and while you are at it, check to see if your bootloader is unlocked inside Developer Options.
Edit: BTW, try not to unlock the bootloader if it is already unlocked. If it is unlocked, then skip the steps for unlocking the bootloader. It might cause an issue.
These are the steps I used to flash TWRP and I was able to flash SuperSu, all rooted apps are working fine, AdAway, Lucky Patcher...etc!
This:
Rebel_X said:
Here you go, TWRP for Ulefone Power 2
2) Before you flash TWRP recovery, you must have SuperSu zip file on your phone beforehand, otherwise, your phone will not boot to Android. It has to do with something about the original TWRP for Oukitel k6000+, since the author of that TWRP port said so in the instructions about how to flash the recovery.
Click to expand...
Click to collapse
And this combined:
Rebel_X said:
Here you go, TWRP for Ulefone Power 2
9) Click "Install", browse for the SuperSu zip file you have downloaded to your phone, for example inside the Download folder. And then select it.
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Apparently if you dont flash the supersu first time you go into TWRP then it gets messy. Got the root working now. Thank you for the help and of course for the TWRP build!
Also if anyone's wondering it's possible to restore the system via fastboot. Extract the rom zip (can be downloaded from http:/ulefone.com/download/power2.html ) and flash boot, recovery and system;
Code:
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system system.img
link for sp flash tool u used.
Rebel_X said:
Yeah, I had the same issue with the software that comes from Ulefone, it was asking for Checksum Generator that I have to download separately, it was like 150kb stand alone executable, you put it in the same folder of your stock ROM and wait forever for it to build the Checksum, which unfortunately didn't work since it complains about multiple RECOVRY images. So scratch that.
What you need to do, is as I did, download SP FLASH TOOL, it works great, no shinanigans or bullsh!t. It flashed the stock ROM in less than 2 minutes (around 1:30 seconds, to be exact) and revived my phone. There are plenty of youtube tutorials on how to use it. It is easy, just load the scatter file, for the other file, you can use the same all in one mtk file that comes with SP FLash Tool (I did this) or use the one from your STOCK ROM.
I hope that helps :good:
---------- Post added at 02:33 PM ---------- Previous post was at 02:27 PM ----------
All I can think of, you did something wrong. Initially, while I was trying to port TWRP, I had the same issue, I was trying to save some steps by flashing the recovery after I unlocked the bootloader without rebooting, the result was TWRP was not able to see any partitions.
Flash Stock-ROM and redo the steps. If you flash the preloader you might have to OEM Unlock your phone again.
I mentioned that if you "do not flash SuperSu, the system will NOT boot to Android". Also mentioned that after you unlock the bootloader, you have to RE-ENABLE USB Debugging, and while you are at it, check to see if your bootloader is unlocked inside Developer Options.
Edit: BTW, try not to unlock the bootloader if it is already unlocked. If it is unlocked, then skip the steps for unlocking the bootloader. It might cause an issue.
These are the steps I used to flash TWRP and I was able to flash SuperSu, all rooted apps are working fine, AdAway, Lucky Patcher...etc!
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ok what should i select there? formal all+download or download only or firmware upgarade???

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