BootLoop, Need your Help! - Android Q&A, Help & Troubleshooting

Welcome dear xda_dev user,
Model:Prestigio Multiphone 5451 DUO
My device in the past months stuck in a boot-loop, and.. I googled for loads of threads to read,but they don't really help.
This is what the phone do, and not do:
Can/Works:
ADB sideload (PC see the device!)
Stock Recovery Menu
Can turn off/on the device,screen vibration,etc. works.
No/Not Works:
Can't listen to ADB while booting.
NO TWRP and other Recovery menus installed, only the stock android one.
NO official ROMs available from this company.
Click to expand...
Click to collapse
This is what I tried:
Tried to load 1-5Mb "firmware" updates via ADB Sideload /throwing permission problems/
Tried to Wipe data/cache /didn't boot after this/
Tried to unplug battery <- make it 0% (uncharge)
Tried to load non-company driven ROMs via ADB /permission problems/
Click to expand...
Click to collapse
NO official ROMs available from this company, I asked them to share, but they said I need to go a city (200km) away from me who have "authorized access"..
I kept this thread as simple as possible, BTW I have bought a new device, I still need this mobile because it still worth $50 I think..
Thank you if you can help, and ignore the grammar problems.

Not sure if these are legit firmware files for the duo but seeing you are in this fix it is worth a look i think
https://androidmm6.com/deviceinfo_1701.html
http://www.needrom.com/download/prestigio-pap-5451-duo/

Probably Scam/fake.
The file (rar) is locked via password and it's nowhere published, and it's only 1.65Mb so not really a ROM.
Anyways, I star you up for first and probably last replyer.

If you are able to sideload , then i think you can recover your phone in no time.
First I need you need to know that this procedure is complicated but You can recover your device.
go to mtkroms.com and Download any rom from there as per your wish.
-Remove boot.img from zip file and save it else where
-Sideload the rom
-After sideloading ,reboot device into fastboot by pressing power and both volume keys together until Boot Menu appears where you have the choice to Normal Boot , Boot into Fastboot(Bootloader) and Boot into recovery.
-Use Volume Down to navigate to Fastboot and press Volume Up (or Power button in some devices)
-After booting into fastboot , extract boot.img from .zip file to C:
-type in , fastboot flash boot "C:\boot.img"
-type fastboot reboot
If you are lucky , your device might boot (very slight chance to actually boot)
If it doesnt , no issues , this is where you show your skills as rom porter xD
You wont have access to Android OS , but after dalvik cache has been build , access to adb will be granted.
In the same above mentioned website , there is a tool which can port cwm for any mediatek device.
Download it in your PC , PC should not be windows 10 , Compatibility mode wont work.
Make sure you have Drivers necessary to proceed.
Use the tool and Click automatic porting and follow on screen option to Complete Porting recovery , once the recovery has been ported , reboot into recovery.
Now you will have complete access to adb without any problem.
Once you have a proper working recovery , with adb shell , do the following,
Code:
-adb shell
-df
-cat /proc/partitions
Once you have access to the mount points , you can start DeCompiling kernel and do the necessary changes in fstab
To decompile kernel , there are many tools for Windows and Linux
Google it , if you have any problem , PM me or reply back , I'll be happy to assist you

Related

[ROOT][KITKAT][HONOR 4C] Root, Recovery & Bootloader Unlock by HassanMirza01

DESCRIPTION:
Today i found the New Root & Installing Custom Recovery(CWM) in KITKAT surely...
I will Provide correct info and help......All This you are gonna do is At your Own Risk... Damage to your device of any type is at your Own Responsibility,,, Don't point finger at me or I will Just Laugh at you...
PREREQUISITES:
First of all, You should Unlock Bootloader so that on every reboot, Your Root shouldn't damage. You can unlock bootloader by simple procedure...and also enable the USB Debugging from Developers options in settings...
PROCEDURE:
FOR UNLOCKING BOOTLOADER, FOLLOW THIS
Download the Attached PC Software Named "Huawei Product ID Generator" then Extract this zip file...
Now open it, fill all Info in it and select the device Y300-0000... After this, it will Generate a Product ID for your Phone....
Now go to this site Unlocking Code website
Login to this site using your Huawei id which you made in themes store or in huawei cloud!!
Use the Serial Number Written on BACK OF YOUR PHONE..!!
Fill like, samrtphone>Product Model should be "HUAWEI Y300-0000"
then fill all fields and captcha also.. Click Submit and get the UNLOCKING CODE....
you can unlock bootloader wid that code then and root permanently....
After receiving the unlock code, write down the code;
Now go in your 4C's Settings>About Phone.
Then tap on Build number 10 times,,, you will get the Developers options in Last of Settings app. Open Developers option and Turn On the USB DEBUGGING.
Now connect your device to PC in MTP mode and then install the ADB drivers for it....
To install adb drivers correctly, use the Software Adb Driver Installer from here
LINK FOR ADB DRIVER INSTALLER
Full ADB folder is also attached Below.... put this folder in drive C.
Now Direct the cursor on the folder ADB, hold Shift and the right mouse button and choose "Open Command Window";
connect your phone to the PC in the "media device";
at the command prompt prescribe ADB Devices ;
then we write ADB reboot bootloader (the device will reboot mode fastboot);
then typed fastboot oem unlock **************** (where the asterisks replace unlock code);
BOOTLOADER UNLOCKED NOW!!
Now You are Ready to install CWM recovery first.... Download the Root and CWM recovery File from here...
This File Also contain Stock Recovery of Kitkat Rom
4C Root+CWM by [email protected]
After this, unzip it and better come again in Fastboot Mode like above as explained, this time, move the recovery file to the adb folder which you want to install.
After that, type fastboot devices to see if your device is correctly attached to PC or Laptop. if yes then type this command in adb to install the Custom Recovery(CWM) in your phone.
fastboot flash recovery cwm.img
Then
fastboot reboot
This will reboot your phone and cwm installed.
Now move the Root.zip file to sd card and using CWM recovery, install it.. and Whoa!
Its done and phone Rooted for sure... wid no bootloop chance..
Now Customize Your Phone Install Viper4Android And Roms Xposed ^_^
If You Want To Stock Recovery After Root Simply Use The Command In Fastboot Mode
fastboot flash recovery stock.img
Then
fastboot reboot
This way, you will have Stock Recovery back.
Hit Thanks and Support me if you Like and get help from this thread...Thank you...
This is Based on Stock Huawei Kernel, Not compiled by Me...
Contributors:
@HassanMirza01
Version Information:
Status: Stable
Stable Release Date: 2015-09-28
Created on: 2015-05-29
Last Updated on: 2016-02-19
Reserved
I'll try it when i arrive home.
Enviado do meu CHC-U01 através de Tapatalk
I flashed the cwm zip .. But now unable to boot in to recovery .. After doing Vol up + power .. Honor title come n nothing happens .. Normal booting is fine , just recoverys bricked I think :crying:
Nops... keep pressing vol up for 3 sec then keep power button pressed also untill cwm appears... Dont release keys when logo appear... Release when cwm appears... @Srijit
Press thanks if i helped you
Followed all the steps but still not able to boot into cwm .. I have lollipop beta installed .. Is that the problem ? :crying:
Its for kitkat nd has kitkat kernel.....
inshaalmirza said:
Today i found the New Root & Installing Custom Recovery(CWM) for sure,,,
First of all, You should Unlock Bootloader so that on every reboot, Your Root shouldn't damage. You can unlock bootloader by simple procedure...and also enable the USB Debugging from Developers options in settings...
Just mail at [email protected] wid subject that unlock bootloader huawei honor 4c and in mail type all info..like imei, serial no. Product number nd model number...they will send you unlocking code....
you can unlock bootloader wid that code then and root permanently....
After receiving the unlock code, write down the code;
download the installer utility ADB and Fastboot and set (if you have them yet);
direct the cursor on the folder ADB, hold Shift and the right mouse button and choose "Open Command Window";
connect your phone to the PC in the "media device";
at the command prompt prescribe ADB Devices ;
then we write ADB reboot bootloader (the device will reboot mode fastboot);
then typed fastboot oem unlock **************** (where the asterisks replace unlock code);
Now You are Ready to install CWM recovery first.... Download the Root and CWM recovery File from here...
https://drive.google.com/file/d/0B0iMDu5QRxNicU1EalpZeHNUR3M/view?usp=sharing
After this, unzip it and better come again in Fastboot Mode like above as explained, this time, move the recovery file to the adb folder which you want to install.
After that, type fastboot devices to see if your device is correctly attached to PC or Laptop. if yes then type this command in adb to install the Custom Recovery(CWM) in your phone.
fastboot flash recovery recovery_cm.img
Then
fastboot reboot
This will reboot your phone and cwm installed.
Now move the Root.zip file to sd card and using CWM recovery, install it.. and Whoa!
Its done and phone Rooted for sure... wid no bootloop chance..
Now Customize Your Phone Install Viper4Android And Roms Xposed ^_^
If You Want To Stock Recovery After Root Simply Use The Command In Fastboot Mode
fastboot flash recovery recovery_official.img
Then
fastboot reboot
Hit Thanks and Support me if you Like and get help from this thread...Thank you...
Credits: Gizdev site...
Click to expand...
Click to collapse
where is for lollipop,,
No lollipop cwm yet...
tested recovery and cannot made a advanced restore. Tried only system but after selection cannor made it to apply.
Anyone knows how?
I backup full... Nd its done
I still dont have the bootloader unlock code
Sent from my ALCATEL ONE TOUCH 7047D using XDA Forums
Lol.... Follow procedure carefully... Nd dont write anything other
Honor 4x I need custom rom and cwm r lollipop update
Sent from my Che1-L04 using Tapatalk
inshaalmirza said:
I backup full... Nd its done
Click to expand...
Click to collapse
Me to.
I tried to restore only system but don't know how.
Everything else seems to work OK.
Enviado do meu CHC-U01 através de Tapatalk
OP! how do you able to get CWM,
does it came from own recovery of 4C? if yes, can you show how
Custom recoveries use the kernel properties of device.... Not the stock recovery converted to cwm.....
Hey. Kingo root android application make tempory root your device. After restart mobile. Back to normal
Sent from my CHM-U01 using XDA Forums
Unlock bootloader... Then it wont come back to normal...

[Q] Modified ROM prop (for persistent adb) not applying

Hi,
I'm stuck here on a large problem : I've got an I9300 with broken screen and digitizer. I just wish to enable adb in normal use so I can take control of it and install a VNC app for future projects, thus I don't care about erasing all data.
I managed to flash CWM via Odin on it, then I was disappointed to see that Odin could not help me flashing a custom ArchiDroid (zip file) on it, on which I enabled adb as shown in thread n°2335799 (sorry can't post links yet), by editing default.prop in boot.img and build.prop also.
Then I booted my S3 in recovery mode, I did Vol- and Power, "sideload" appeared in the list of
Code:
adb devices
I then did
Code:
adb sideload rom.zip
waited for it to finish.
After that I boot it in "normal" mode, and surprise, adb is still not activated!
I have no clue of what could possibly be wrong!
Thanks in advance for any help!

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:

DOOGEE T6 Pro - Root ?

Hey there,
i was wondering if anyone got an idea how to get root access / TWRP working on a Doogee T6 Pro ?
I don't really find anything online that seems to be working and of course most one-click root tools dont work for China phones.
Anyone got any idea ? The official forums look empty as well.
It looks good
Applesoap said:
Hey there,
i was wondering if anyone got an idea how to get root access / TWRP working on a Doogee T6 Pro ?
I don't really find anything online that seems to be working and of course most one-click root tools dont work for China phones.
Anyone got any idea ? The official forums look empty as well.
Click to expand...
Click to collapse
Some useful tips for rooting MAZE Alpha, perhaps will help you : MAZE Alpha root
Use the method I to patch your boot.img with Magisk-v14 and flash the result image, it must works
Here is the HowTo, have done it 3 times yet:
First, get the correct TWRP Version for Doogee T6Pro ( i dont remember where i got it, i can upload it somewhere if someone have a good location) and the SuperSu Zip.
Then, activate the Developer Options in the Device Settings and Activate the OEM Unlock and USB Debugging in there.
The next Step is to Boot the Device in Fastboot mode. you can either do it by USB with the Terminal Command: "adb reboot bootloader" or you can turn the device of and then reboot it by pressing the Volume Up Button and the Power Button simultanously (quite difficult, didnt Work every Time). You will get to a menue with 3 options: Boot to Recovery, Fastboot and Normal. Switch through these Options with the Volume Up Button and Select it with the Volume Down. Go To the Fastboot Option and Select it.
In Fastboot Mode, plug in the device to an computer and type the terminal command "fastboot oem unlock" (in windows, you have to install the fastboot tools. i dont remember that i had to install them in ubuntu... im not sure). this will wipe the whole data of the device. its important to reboot the device afterwards normaly. otherwise it could happen that you get stuck in an bootloop later ( happend twice to me ) this normal system boot will last much longer then normal, so get a coffee or tea
the next step is do get to fastboot mode again and then send from your computer the command: "fastboot flash recovery twrp-recovery-filename.img". this will flash the recovery.img on the recovery partition.
than go to the bootloadermenue and this time you dont choose fastboot but the recovery option. this will start TWRP
while TWRP is running, you can copy the SuperSU zip to the device with Nautilus or in windows systems with windows explorer. then select "Install" in TWRP and select the SuperSU.zip.
After the installation, reboot to normal system and you are ready with rooting!
if something goes wrong, it can happen that booting to normal system will get you stuck in an bootloop. the last time i could repair the system by booting into recovery (TWRP) and select the Wipe menue and there the Format option. the other time i downloaded the original system from Doogee and flashed all partitions. im not sure if that was necessary.... but who knows :fingers-crossed:

Qilive(smartphone) how to root Q8 series tutorial(q8s5in4gp-q8s55in4g2)

1-step
in order to root these qilive devices you will need...
magisk manager apk v5.6.4
stock boot.img file
working ADB to unlock oem and flash
2-step
lets get to it
place the magisk.apk and the stock boot.img
in the internal memory of your phone (downloads)
if you like to keep stuff organized :good:
3-step
follow the vídeo tutorial and use magisk manager
to patch your stock boot.img it will output a new
boot.img that includes magisk Root (patched_boot.img)
https://www.youtube.com/watch?v=BF4_hnKgjFA
ps: major ty to hovatek team for this great tutorial
step-4 use Google drive or usb OTG to get the patched_
boot.img to your PC and place it in the ADB folder
once you have oem(bootloader) unlocked just
rename the patched_boot.img to boot.img
step-5
unlock oem, these qilive devices wont unlock
the bootloader even if you enable it in DEV options
enable USB debug in dev options
you will need to use ADB commands
command- adb devices
serial appears
command- adb reboot bootloader
phone reboots to fastboot mode
command- fastboot devices
serial appears
command- fastboot oem unlock
(MAJOR WARNING the fastboot
oem unlock will wipe/reset/factoryreset/delete your data)
after you give the command small letters will appear
on the phone screen(yes or no) hard to read dont be hasty plz
use VOLUME+ to select and VOLUME - to confirm
note: when my phone ended the unlock it whent back to
that black screen where you choose fastboot-recovery-restart
and was stuck there, side keys did nothing if this happens
just long press the power key for 10 sec it will shutdown
then press power again to turn on
first boot after unlock will take longer then normal dont freakout
after you unlock small letters will appear during boot up saying the device
is not safe unlocked ,you can later use ( fastboot oem lock )
step-6
flash the patched boot.img with ADB
command- adb devices
serial appears
command- adb reboot bootloader
phone reboots to fastboot mode
command- fastboot devices
serial appears
command- fastboot flash boot boot.img
finished/ok
command- fastboot reboot
and voila you should now have magisk
installed in the app drawer, open it!!
step-7 run the install one final time from the
magisk manager and install magisk V16 using
recomended option it will verify/patch the boot image
Do NOT select the AVB 2.0 BOX it will bootloop the phone
and your done, enjoy your qilive rooted phone.
from this point on you can use the fastboot
command- fastboot oem lock
to remove the letters in boot up about the
device not safe unlocked
WARNING oem lock
will WIPE/FACTORY RESET again (god damn it!!)
ps: i had to install twice in a row,major pain in the ....
Repeat step 7 after Wipe/Reset
here is the stock boot for 2 qilive models
you can get the stock firmware for any qilive
at this site www.doc-doapi.com/EM/qilive/smartph...te_3m-fdd-cs_mul_20170818-110645_songlixin_PC
and get the recovery or boot from the unpacked firmware file
ps:my phone is the Q8SIN4GP AND ITS WORKING FINE
A VERY SPECIAL TY to topjohnwu (magisk creator), this man is nothing
short of a God damn genius!! , and if you can donate to him.
hope this helps other qilive users to root:highfive:
quick note on the qilive models, they have two model names
the cliente name in my case Q8SIN4GP
and the factory name in my model its 882912
in order to download the right firmware for your model
you need the factory model witch is what appears in the qilive
site above, it will be in the back of the phone or the original
box on a sticker just bellow the bar code, full model exempl
:Q8SIN4GP/882912 my firmware serves several models,
these Q8 models all start with 88xxxx WARNING
dont try this using the wrong firmware/boot file or you will DAMAGE your phone
Help with BOOTLOOP problems, if you find your self stuck in a bootloop
the phone wont go past the qilive logo and just stays there, dont freak out
you will loose your data but there is a way out
just keep pressing power + Volume up until a black screen with 3 options appears
when it does let go, use Volume + to select option and Volume - to confirm
select Fastboot or alternative select recovery and then select reboot to bootloader
both option will place your phone in Fastboot mode, once in fastboot mode
connect your phone to PC and use ADB commands to fix/bootloop
command- fastboot devices
serial appears
command- fastboot oem unlock (skip this if you use phone unlocked)
a confirm action option appears on the phones screen
use Volume up to say YES / or Volume Down to say NO
Warning oem unlock will WIPE/Factory reset your phone
once it finishes the phone will be stuck on the
Recovery/fastboot/restart screen just long press the power key
until the phone shuts down
start the phone again using Power + Volume up when the black
screen with the 3 options come up, let go and use Volume up to
select Fastboot mode and confirm using Volume Down
Once in fastboot connect your phone to PC and use ADB commands
command- fastboot devices
serial apears
Here you will flash the magisk patched_boot.img
the same image you used to root your phone
command- fastboot flash boot boot.img
it will say finished-ok (or similar)
command- fastboot reboot
the boot up time will be longer than normal
but the phone should now complete the boot
and present the inicial setup screen, select language
enter your mail, the usual bla bla...
any way at this point just repeat step 7
to get root running again
sp flash tools v5.1716.
phonedriller said:
1-step
in order to root these qilive devices you will need...
magisk manager apk v5.6.4
stock boot.img file
working ADB to unlock oem and flash
2-step....
Click to expand...
Click to collapse
Hi phonedriller,
phew, I did it! (Q8S55IN4G2), thanks.
Next step: Have you found a compatible custom recovery? (especially for nandroid backups and for xposed installation)
Would be very thankful for your help!
thanks
xdatheresianum
xdacktheresianum said:
Hi phonedriller,
phew, I did it! (Q8S55IN4G2), thanks.
Next step: Have you found a compatible custom recovery? (especially for nandroid backups and for xposed installation)
Would be very thankful for your help!
thanks
xdatheresianum
Click to expand...
Click to collapse
Awsome work congrats, as for the recovery so far no luck so try not to go 2 crazy until a working recovery is up and working , install stericsons busy box this is always the first root app i install
If possible buy sterics busybox pro and titaniumbackup pro if you want to install apps to sd card apps2sd pro all of these can be tested in free
Version,again nice work congrats enjoy you rooted phone :highfive:
xdacktheresianum said:
Hi phonedriller,
phew, I did it! (Q8S55IN4G2), thanks.
Next step: Have you found a compatible custom recovery? (especially for nandroid backups and for xposed installation)
Would be very thankful for your help!
thanks
xdatheresianum
Click to expand...
Click to collapse
give a hungry man fish and you solve his problem for a day or two
teach him how to fish and you solve his problem for life
phonedriller said:
give a hungry man fish and you solve his problem for a day or two
teach him how to fish and you solve his problem for life
Click to expand...
Click to collapse
hi phonedriller,
...well, i must have been an unlucky fisherman
an app i installed ended up giving me a soft brick (bootloop between qilive icon opening screen - btw still with the "warning" of "device is unsafe etc", i.e. oem still open - and black screen, qilive opening screen etcetcetc)
have cleaned cache; went for factory reset; etc
BUT: am presently stuck when trying to go via ADB (which used to work perfectly before) that somehow the usb drivers don't want to get installed properly. as a consequence, desktop cannot see devices.
and i cannot, for the sake of me, remember how i had succeeded before installing usb drivers.
could you please help?
thx
cktheresianum
xdacktheresianum said:
hi phonedriller,
...well, i must have been an unlucky fisherman
an app i installed ended up giving me a soft brick (bootloop between qilive icon opening screen - btw still with the "warning" of "device is unsafe etc", i.e. oem still open - and black screen, qilive opening screen etcetcetc)
have cleaned cache; went for factory reset; etc
BUT: am presently stuck when trying to go via ADB (which used to work perfectly before) that somehow the usb drivers don't want to get installed properly. as a consequence, desktop cannot see devices.
and i cannot, for the sake of me, remember how i had succeeded before installing usb drivers.
could you please help?
thx
cktheresianum
Click to expand...
Click to collapse
PS: adb will not work if the phone is not booting to the OS
it will work if you manualy place the phone in fastboot AKA bootloader
MODE ,you see if it does not boot to OS then usb service is not working
use power + Volume up to enter the black menu
use the Volume up to select fastboot(bootloader) volume - to confirm
connect the phone to your PC
flash the boot.img, the same boot.img used to root (patched by magisk)
to see is adb is ok just run - fastboot devices
if a serial is presented then all other stuff should work
step 1 - reflash the boot img
step 2 - after the flash finishes - fastboot oem lock
message on the phone screen, confirm yes to lock
OEM
step 3- press power until it turns off
it should now complete the start up (boot)
if not working this method let me now
you can still flash the full factory firmware
using SP Flash Tool v5.17xx
phonedriller said:
PS: adb will not work if the phone is not booting to the OS
it will work if you manualy place the phone in fastboot AKA bootloader
MODE ,you see if it does not boot to OS then usb service is not working
use power + Volume up to enter the black menu
use the Volume up to select fastboot(bootloader) volume - to confirm
connect the phone to your PC
flash the boot.img, the same boot.img used to root (patched by magisk)
to see is adb is ok just run - fastboot devices
if a serial is presented then all other stuff should work
step 1 - reflash the boot img
step 2 - after the flash finishes - fastboot oem lock
message on the phone screen, confirm yes to lock
OEM
step 3- press power until it turns off
it should now complete the start up (boot)
if not working this method let me now
you can still flash the full factory firmware
using SP Flash Tool v5.17xx
Click to expand...
Click to collapse
dearphonedriller,
thank you so much for your speedy help.
followed the steps given by you. all is well, as you predicted, until step 3.
however:
phone (now without the "orange state" message, i.e. oem locked) still bootloops and short of ADB "fastboot devices" the desktop doesn't see the phone (and driver installation continues to fail), as per your PS (thanks!) i guess flashing the full factory firmware ("RC-mt6737...zip" quoted by you in your very first post) is next.
would you please point me to a basic-for-noobs tutorial or instruct me on the step-by-step commands/procedures using this zip file?!
HUGE thanks
ckth
xdacktheresianum said:
dearphonedriller,
thank you so much for your speedy help.
followed the steps given by you. all is well, as you predicted, until step 3.
however:
phone (now without the "orange state" message, i.e. oem locked) still bootloops and short of ADB "fastboot devices" the desktop doesn't see the phone (and driver installation continues to fail), as per your PS (thanks!) i guess flashing the full factory firmware ("RC-mt6737...zip" quoted by you in your very first post) is next.
would you please point me to a basic-for-noobs tutorial or instruct me on the step-by-step commands/procedures using this zip file?!
HUGE thanks
ckth
Click to expand...
Click to collapse
https://www.youtube.com/watch?v=-zaEmj3-prU
turn the phone off, follow the video
flashing the full firmware is actualy easy
https://forum.hovatek.com/thread-13970.html
or searh sp flash tool here on xda
https://www.youtube.com/watch?v=LzyYXAflmOk&t=125s
phonedriller said:
https://www.youtube.com/watch?v=-zaEmj3-prU
turn the phone off, follow the video
flashing the full firmware is actualy easy
https://forum.hovatek.com/thread-13970.html
or searh sp flash tool here on xda
https://www.youtube.com/watch?v=LzyYXAflmOk&t=125s
Click to expand...
Click to collapse
thank you, phonedriller
everything worked perfectly via SPFlash Tool.
and, referring back to our above questions re the possibility of getting TWRP onto the phones, a developer friend of mine writes me this:
>try to flash TWRP:
>Download following files from this link:
>https://mega.nz/#F!qZIgnJRK!5apBfYo1je0ytg-wmA6JMQ
>- Odin3 v3.12.3 (Complete folder)
>- twrp-3.2.1-0-Q8S55IN4G2-20180318.tar
>1. Start your Phone into download mode
>2. Start Odin (Odin3 v3.12.3\Odin3.exe)
>3. Click on Options and unmark Auto Reboot
>4. Click AP and select twrp-3.2.1-0-Q8S55IN4G2-20180318.tar
>5. Press Start and wait until finished (Reset or OK!)
>6. Restart your phone immediatly to recovery mode
>7. In TWRP Recovery click on mount
>8. Set the checkbox checked at system (that system is mounted)
>9. go back and click on advanced
>10. Open file manager
>11. navigate to system/build.prop and click on build.prop
>12. Click on chmod
>13. type: 0644 and hit the accept button on screen or at the virtual
>keyboard on your phone
>14. restart your phone
i haven't tried this, but am wondering whether it might seem "reasonably possible" when reading through it.
thanks
ckth
Do you perhaps have link to Q8S5IN4GP stock rorm? Mine came with malware installed on it. I want to see if those were chinese who preinstalled or or was it decided by Auchan.
tommo1982 said:
Do you perhaps have link to Q8S5IN4GP stock rorm? Mine came with malware installed on it. I want to see if those were chinese who preinstalled or or was it decided by Auchan.
Click to expand...
Click to collapse
On my phone it came from factory and on the firmware file on 2 models , however only kasperky complains about malware on an system app called Helper bla bla bla i think its a false positive(i think) as no other antivirus or playstore ever found anything,but hey better investigate and be safe then sry right :good: maybe a ported cyanogen rom, ive look at a few rom port tutorials but my knowhow is limited + dont even have a working twrp yet, avg/avast/malwarebytes and a few others ,only kaspersky detects malware.
phonedriller said:
On my phone it came from factory and on the firmware file on 2 models , however only kasperky complains about malware on an system app called Helper bla bla bla i think its a false positive(i think) as no other antivirus or playstore ever found anything,but hey better investigate and be safe then sry right :good: maybe a ported cyanogen rom, ive look at a few rom port tutorials but my knowhow is limited + dont even have a working twrp yet, avg/avast/malwarebytes and a few others ,only kaspersky detects malware.
Click to expand...
Click to collapse
I had issues with adds being displayed at home screen and I was not able to close them. I had to use NetGuard to find that FOTA talks to 'adsup' and it is a known malware provider. I learned that some of the system apps try to talk with Alibaba servers and AdOppo (whatever it's called). Kaspersky might not be wrong, actually.
I'm trying to download stock firmware, but I don't know the file name. The website with it is locked, so unless I know exactly what I need, I cannot download it.
phonedriller said:
On my phone it came from factory and on the firmware file on 2 models , however only kasperky complains about malware on an system app called Helper bla bla bla i think its a false positive(i think) as no other antivirus or playstore ever found anything,but hey better investigate and be safe then sry right :good: maybe a ported cyanogen rom, ive look at a few rom port tutorials but my knowhow is limited + dont even have a working twrp yet, avg/avast/malwarebytes and a few others ,only kaspersky detects malware.
Click to expand...
Click to collapse
Yes i noticed the site now asks for a login that i dont have,but it was open to all until recently i have the firmware file in my pc,a few days ago i went to check for firware updates and the site was diferent and closed , in the site the download link was 882912/****** this firmware services at least 3 similar models
phonedriller said:
Yes i noticed the site now asks for a login that i dont have,but it was open to all until recently i have the firmware file in my pc,a few days ago i went to check for firware updates and the site was diferent and closed , in the site the download link was 882912/****** this firmware services at least 3 similar models
Click to expand...
Click to collapse
I guess the best thing would be a lineage or cyanogen ported rom(clean),ps i flashed the phone 2 times because of popups/adds and battery drain,however im aware that having root and installing tones of crasy stuff can fu.. Up any phone cheap or flagship,thus the firmware flashes,i discovered that having malwarebytes(premium)free for 30days keeps the phone clean and working fine,it seems that one is forced to buy from a main stream brand or risk this kind of thing,little to no support,no updates at all,bad security,the problem is certain apps if removed resoult in boot loop like this Helper app
phonedriller said:
I guess the best thing would be a lineage or cyanogen ported rom(clean),ps i flashed the phone 2 times because of popups/adds and battery drain,however im aware that having root and installing tones of crasy stuff can fu.. Up any phone cheap or flagship,thus the firmware flashes,i discovered that having malwarebytes(premium)free for 30days keeps the phone clean and working fine,it seems that one is forced to buy from a main stream brand or risk this kind of thing,little to no support,no updates at all,bad security,the problem is certain apps if removed resoult in boot loop like this Helper app
Click to expand...
Click to collapse
Ps use root + apps2sd or titaniumbackup to stop/disable the bad apps and replace them with playS app,not possible on all apps of course
phonedriller said:
I guess the best thing would be a lineage or cyanogen ported rom(clean),ps i flashed the phone 2 times because of popups/adds and battery drain,however im aware that having root and installing tones of crasy stuff can fu.. Up any phone cheap or flagship,thus the firmware flashes,i discovered that having malwarebytes(premium)free for 30days keeps the phone clean and working fine,it seems that one is forced to buy from a main stream brand or risk this kind of thing,little to no support,no updates at all,bad security,the problem is certain apps if removed resoult in boot loop like this Helper app
Click to expand...
Click to collapse
I'm thinking about Android 8.1 with it's Treble project. I might not be knowledgable enought to compile and flash it, though.
tommo1982 said:
I'm thinking about Android 8.1 with it's Treble project. I might not be knowledgable enought to compile and flash it, though.
Click to expand...
Click to collapse
Flashing is super easy use spflashtools or. Odin compiling a Rom is not , were you able to get the original firmware? You will need the original firware to get the boot and partition info from what i read so far
Unfortunately not. I will ask at the shop where I bought it how to contact tech. It should be freely available. I don't understand why Qilive restricted access to firmware.
I'll post when I learn anything.
Well, you can download the firmware if you know the file name. The bad news is, it seems the stock firmware has malware preinstalled. If there is anyone who could help confirm it. I have the ROM, and I can upload it to Google Drive if needed.
Hi all,
I'm coming back to a question lingering since the very first post here and mentioned again in post #9:
Is there a successful way to install TWRP on this Qilive model?
Re this topic:
- has anybody tried/has anybody been successful with the procedure described in post #9?
and
- has anybody seen the following TWRP builders' version (do an in-page search on Q8S55IN4G2)
https://twrpbuilder.github.io/fr/downloads/twrp/
with the download belonging to it
https://androidfilehost.com/?fid=890129502657591798
???
any successful installations to report???
Wouldn't THAT be great!!??
thanks
xdack

Categories

Resources