Hi!
I'm so stupid. I wanted to install cm12.1. So I rooted phone, unlocked BL. Then, I had first problem - when executing adb oem-unlock BL has unlocked and phone go to fastboot. But my comp couldn't recognize it (heard plugging in and out sound repeatedly). And here comes my "stupidity". I installed flashify and flashed CWM by it, got to CWM, installed cm12.1 zip. Of course wiped all data. Because I didn't flashed boot.img cm12.1 was freezing on fist setting up screen (nothing was working, just power button - pushing 10s turned off phone).
I wanted to flash boot.img by fastboot. But I still had problems with drivers(omap4boot didn't work). So I tried to recovery system by LG Mobile Support Tool. Everything got fine, but then phone stuck on the LG logo.
S/W Uprgade mode works of course, but I can't get to recovery now.
I'm using Windows 8.1
Any ideas?
Edit.
Ok, so I tried to install omap again. I did it, but the phone is still repeatedly conecting and disconnecting and in device manager I cought omap4430 driver whith waring mark for a while. Any ideas now?
Is it the non-animated LG logo?
This should work:
http://forum.xda-developers.com/showthread.php?t=2748384
The download links for the firmware are probably not up to date. Use this to download: http://forum.xda-developers.com/showthread.php?t=2287573
If your phone still goes beyond the non-animated logo, there might be easier solutions.
It was after animation.
Anyway, I have finally solved this problem by installing new system using Bride's solution with full wipe.
Related
Hi,
I have big problem. When i oc my phone on stock JB (V20B Europe open), phone was rebooted and after reboot stay on logo LG. I can get to cwm, i restore my backups,wipe all, try flash custom roms and nothings, same problem. KDZ shows me, that "Port(USB or Serial) not found" on all PCs where i try flash kdz, before this problem R&D tool works fine. I try reinstalling all drivers,usb drivers,adb drivers,lg drivers and nothing... I have unlocked bootloader,fastboot. Adb finds my phone only in recovery and when i try some commands, write <Waiting for device>, adb drivers are installed and work fine for other devices. Thnx for answers.........
Malcolmekkk said:
Hi,
I have big problem. When i oc my phone on stock JB (V20B Europe open), phone was rebooted and after reboot stay on logo LG. I can get to cwm, i restore my backups,wipe all, try flash custom roms and nothings, same problem. KDZ shows me, that "Port(USB or Serial) not found" on all PCs where i try flash kdz, before this problem R&D tool works fine. I try reinstalling all drivers,usb drivers,adb drivers,lg drivers and nothing... I have unlocked bootloader,fastboot. Adb finds my phone only in recovery and when i try some commands, write <Waiting for device>, adb drivers are installed and work fine for other devices. Thnx for answers.........
Click to expand...
Click to collapse
Hard reset : Turn off your phone, press and hold Vol-, the home key, and the power for 8 seconds.
If you don't have stock jb backed up you can probably use jb cwm backup from http://forum.xda-developers.com/showthread.php?t=2136204
I have searched a lot on google and xda and havn't found an answer to my issue. Either I'm searching for the wrong thing or I have a very unique problem.
My basic problem is on two Nabi 2's I can't access the bootloader in order to be able to fastboot TWRP (or any other recovery). It just perpetually hangs.
Both tablets boot just fine. Both tablets are on 1.9.37. Both tablets can be factory wiped via the stock recovery.
Both tablets were rooted via TWRP 2.3.3.0 a few years ago in order to install gapps. I wanted to be able to upgrade the tablets to JB when it came out so I used Nabilablite to "return to stock". I followed all of the prompts and it appeared as though everything worked as desired. I downloaded the OTA update told it to install and never looked at the version again...I just assumed it installed. Handed the tablets back to the kids and everyone was happy. Apparently all I did was flash the stock recovery because they are still rooted and have gapps after several factory resets.
Now (a year later) I have realized I was a dufas and didn't actually effect the change I wanted.
If I hold Vol+ & Pwr buttons it loads to the recovery/boot menu with "boot normally" "fastboot protocol" "recovery kernal" and "forced recovery". If I boot normal, the tablet works fine but I can't update via OTA.
If I choose fastboot protocol it just hangs...for ever...HOW DO I FIX THIS!?!?!
If I choose recovery kernal it loads the stock recovery but still wont install any update OTA or otherwise, even from the sd card.
If I choose forced recovery nothing happens, it also appears to just hang.
If I hold Vol- & Pwr button the nabi logo flashes then the device turns off.
If I hold Vol+ & Vol- & Pwr buttons it appears to be the same as just Vol+ & Pwr.
With the tablet on and fully booted I can see it via ADB. I tried using the adb restart bootloader. The tablet reboots but then just hangs never actually loading the boot loader...
I found http://forum.xda-developers.com/showthread.php?t=2587543. But aicjofs mentions seeing a bootloader issue once before.
Usually when it hangs at the Nabi logo it means you don't have the USB cable plugged in or that the fastboot driver is not installed.(Check device manager and see if fastboot driver is installed/no exclimation point). If that's not the issue then it's the bootloader which I have only seen one person have that issue. Depending on which OTA's you have ran there was an update to a Jellybean bootloader so it's possible. That can be fixed with nvflash or placing the bootloader blob in the staging partition.
Also you can always get recovery back without fastboot in Android by dd'ing the recovery over.
For example if the recovery image is on the internal SD
dd if=/data/media/recovery.img of=/dev/block/platform/sdhci-tegra.3/by-name/SOS
Click to expand...
Click to collapse
I have NO idea what dd'ing the recover over is...
Thank you for any help fixing this.
P.S. I have a 3rd tablet that I also used TWRP 2.3.3.0 on to root and install gapps with. I did NOT use nabilablite on that tablet to return to stock. Yesturday I used fastboot to flash TWRP 2.6(something) to flash a JB OTA update which worked fine. It was also able to download and install every other OTA update all the way to the most recent KK with no problems...
najman9 said:
I have searched a lot on google and xda and havn't found an answer to my issue. Either I'm searching for the wrong thing or I have a very unique problem.
My basic problem is on two Nabi 2's I can't access the bootloader in order to be able to fastboot TWRP (or any other recovery). It just perpetually hangs.
Both tablets boot just fine. Both tablets are on 1.9.37. Both tablets can be factory wiped via the stock recovery.
Both tablets were rooted via TWRP 2.3.3.0 a few years ago in order to install gapps. I wanted to be able to upgrade the tablets to JB when it came out so I used Nabilablite to "return to stock". I followed all of the prompts and it appeared as though everything worked as desired. I downloaded the OTA update told it to install and never looked at the version again...I just assumed it installed. Handed the tablets back to the kids and everyone was happy. Apparently all I did was flash the stock recovery because they are still rooted and have gapps after several factory resets.
Now (a year later) I have realized I was a dufas and didn't actually effect the change I wanted.
If I hold Vol+ & Pwr buttons it loads to the recovery/boot menu with "boot normally" "fastboot protocol" "recovery kernal" and "forced recovery". If I boot normal, the tablet works fine but I can't update via OTA.
If I choose fastboot protocol it just hangs...for ever...HOW DO I FIX THIS!?!?!
If I choose recovery kernal it loads the stock recovery but still wont install any update OTA or otherwise, even from the sd card.
If I choose forced recovery nothing happens, it also appears to just hang.
If I hold Vol- & Pwr button the nabi logo flashes then the device turns off.
If I hold Vol+ & Vol- & Pwr buttons it appears to be the same as just Vol+ & Pwr.
With the tablet on and fully booted I can see it via ADB. I tried using the adb restart bootloader. The tablet reboots but then just hangs never actually loading the boot loader...
I found http://forum.xda-developers.com/showthread.php?t=2587543. But aicjofs mentions seeing a bootloader issue once before.
I have NO idea what dd'ing the recover over is...
Thank you for any help fixing this.
P.S. I have a 3rd tablet that I also used TWRP 2.3.3.0 on to root and install gapps with. I did NOT use nabilablite on that tablet to return to stock. Yesturday I used fastboot to flash TWRP 2.6(something) to flash a JB OTA update which worked fine. It was also able to download and install every other OTA update all the way to the most recent KK with no problems...
Click to expand...
Click to collapse
EDIT: OOOPPS. I didn't see this was in the XDA Assist section. I'm not suppose to answer questions(I was just searching for Nabi questions and didn't notice this was XDA assist), dedicated XDAers just point you in the right direction in this section. Please ask the question again in the Nabi2 section and I'l come help you. http://forum.xda-developers.com/nabi-2
This might help answer some questions http://forum.xda-developers.com/nabi-2/general/nabi-information-t3229119
If it just hangs at fastboot protocol then the USB connection isn't good or fastboot driver isn't installed most of the time. Can you verify fastboot shows up in device manager?(I know the 3rd tabet worked OK) .
Nabilabite doesn't do anything that should change the bootloader, and fastboot should still work as it did before.
dd'ing recovery over means that you use the root access you have in Android to flash the recovery partition instead of using fastboot. IT's just another way of getting the TWRP recovery on the tablet.
The stock recovery won't install the OTA because when you added Gapps it changed some fies and the OTA sees those files as invalid and will fail.
Forced recovery always looks blank screen. It's waiting for you to give it a bootloader to run(beyond the scope here).
You should be able to get back on track once you have TWRP loaded. It's one of 3 things. Bad USB connection, fastboot driver not installed right, bootloader damage. Check the first 2 issues despite the fact the 3rd tablet had no such problems.
One of the XDA smart guys fixed my error of posting this in the wrong section.
I'm running Windows 7 Ultimate and have installed and re-installed the drivers several times. When the tablet's are fully booted ADB has a good connection and sucessfully sends the command to reboot. So I don't believe there is a driver or USB cable error...
When the tablets hang on the fastboot protocol my computer makes the usb connecting noise but fails to install the drivers...
When I hit forced recovery I hear the unrecognized USB device sound...
These two things make me think I don't have the proper drivers installed...but I don't understand how the driver's work when the tablet is booted but not when trying to access the boot loader.
It appears as though I'm going to have to try the dd method if you are able to point me in that direction please.
EDIT: Now I'm thinking I really DON'T have the fastboot drivers installed. I just plugged the 2nd tablet that hands on the fastboot menu and fastboot failed. I also booted the tablet completly, the adb driver's installed correctly but the fastboot driver's did not...I have installed the 64 bit driver's included with nabilablite. I can't find any actual other downloads. The 15 second ADB installer didn't change anything...
najman9 said:
One of the XDA smart guys fixed my error of posting this in the wrong section.
I'm running Windows 7 Ultimate and have installed and re-installed the drivers several times. When the tablet's are fully booted ADB has a good connection and sucessfully sends the command to reboot. So I don't believe there is a driver or USB cable error...
When the tablets hang on the fastboot protocol my computer makes the usb connecting noise but fails to install the drivers...
When I hit forced recovery I hear the unrecognized USB device sound...
These two things make me think I don't have the proper drivers installed...but I don't understand how the driver's work when the tablet is booted but not when trying to access the boot loader.
It appears as though I'm going to have to try the dd method if you are able to point me in that direction please.
EDIT: Now I'm thinking I really DON'T have the fastboot drivers installed. I just plugged the 2nd tablet that hands on the fastboot menu and fastboot failed. I also booted the tablet completly, the adb driver's installed correctly but the fastboot driver's did not...I have installed the 64 bit driver's included with nabilablite. I can't find any actual other downloads. The 15 second ADB installer didn't change anything...
Click to expand...
Click to collapse
Uninstall those nablablite and try this one. http://forum.xda-developers.com/showpost.php?p=62826514&postcount=2639
Or look at the other options in section 4 here http://forum.xda-developers.com/nabi-2/general/nabi-information-t3229119
Hello, XDA-Members,
long story short, I tried to flash CM-13 on my Honor 5X(KIW-L21 B340). Well, that didn't work and the phone always booted into TWRP. So I flashed FlymeOS because I couldn't flash the stock rom anymore(No matter why.).
It worked perfectly, and I were able to use my phone. After restarting my phone it booted back into TWRP, tried to wipe and all that stuff and even re-flashed Flyme OS, but still booted into TWRP. I was so UPSET that I deciced to flash the original RECOVERY.img for my Honor 5X. Well and from there I made it worse.
Windows and Linux don't recognize my phone. Windows just shows an empty E:\ drive. Reinstalled Google USB drivers, reinstalled driver etc. Didn't work. Now, when I start my phone it boots into the honor 5x recovery. I got these options available:
- Reboot system now
- Wipe data/factory reset
- Wipe cache partition
So, well. I can't install a rom anymore. As well when trying to connect my phone to ADB it won't work either. ADB doesn't recognize my phone. I made a big bull****, tbh. Installed HI-Care as well, but it doesn't get recognized either. I can also boot into Huawei eRecovery, connect to my wifi because it says it can download the stock rom. Guess what, it always said failed so I'm not able to do this either.
I'm really stuck. Anybody got an idea? Thanks in advance!
dunios said:
Hello, XDA-Members,
long story short, I tried to flash CM-13 on my Honor 5X(KIW-L21 B340). Well, that didn't work and the phone always booted into TWRP. So I flashed FlymeOS because I couldn't flash the stock rom anymore(No matter why.).
It worked perfectly, and I were able to use my phone. After restarting my phone it booted back into TWRP, tried to wipe and all that stuff and even re-flashed Flyme OS, but still booted into TWRP. I was so UPSET that I deciced to flash the original RECOVERY.img for my Honor 5X. Well and from there I made it worse.
Windows and Linux don't recognize my phone. Windows just shows an empty E:\ drive. Reinstalled Google USB drivers, reinstalled driver etc. Didn't work. Now, when I start my phone it boots into the honor 5x recovery. I got these options available:
- Reboot system now
- Wipe data/factory reset
- Wipe cache partition
So, well. I can't install a rom anymore. As well when trying to connect my phone to ADB it won't work either. ADB doesn't recognize my phone. I made a big bull****, tbh. Installed HI-Care as well, but it doesn't get recognized either. I can also boot into Huawei eRecovery, connect to my wifi because it says it can download the stock rom. Guess what, it always said failed so I'm not able to do this either.
I'm really stuck. Anybody got an idea? Thanks in advance!
Click to expand...
Click to collapse
Shut down the phone
plug the phone into your windows PC
hold volume down + power to enter the bootloader
from windows open the command prompt - type fastboot devices hit enter (your phone serial number will display)
type fastboot flash recovery TWRP.img (be sure to use this TWRP and it's named TWRP.img and in the same folder as fastboot)
after the file is flashed successfully hold power + volume up + volume down
after 5 seconds let go of power and continue to hold the volume buttons until TWRP boots
From TWRP you can now copy the CM13.zip and Gapps.zip to your phone and wipe/factory reset - then install them one by one
be sure their are no errors .. if you see errors choose reboot recovery and try the flash again until it succeeds.
first boot of cm13 will take some time, be patient
Thanks,
I recovered my phone. Awesome!
So, this is my problem: I was using for months now CM13 and TWRP3.0 by EdwinMoq, but the phone suddenly started to drain battery abnormally, I read CM13 was the cause so I installed TWRP 2.7.1.1 to flash Paranoid Android 4.6 BETA. When I wiped partitions to install PA (using TWRP 2.7.1.1), somehow SD Card files were deleted (I didn't select wipe SD Card at any point so I don't know what happened). Then powered off to copy the flashable *.zip again on the SD Card and when I tried to boot recovery, LG Logo appeared but after few seconds phone shutted down (and this happens everytime).
It is a p768 with unlocked bootloader. I can use fastboot just fine, delete partitions, flash them, but I obviously can't flash a system.img via fastboot (it's too big). And I tried flashing different recovery files (TWRP, CWM) and it's exactly the same. I can boot into "S/W Upgrade Mode" too, but when I try to flash any kdz it gets stuck at 15% saying phone is not connected. I tried using another USB port and making Windows install drivers for the device again with no luck.
Drivers are installed correctly (4.0.4 version) and I see phone in the Modems, Ports and USB controllers sections of Device Manager everytime so I don't know what to do. Fastboot is the only thing that's working and I know /system is missing but I can't flash anything.
My issue is kind of like this one BUT, I can boot into S/W Upgrade.
Nevermind, after some quiet crying over the phone I found that my buttons are screwed. I wasn't pressing VolUp right, tricky button. I feel like a retard.
Yesterday I tried to flash a a new rom on my Xperia Z2 (unlocked bootloader).
From TWRP I did an advanced wipe and selected basically everything except my mircoSD (because it has the new files).
After a long time of waiting I tried to flash the ZIP file and it gave me an error. I thought this had to do with the wipe so I decided to reboot my phone.
As you can imagine, it got stuck on the Sony logo (because system would be empty).
From this moment I couldn't do anything with my phone, except from the tool Emma.
I now have some clean installation of Sony their Android 6.0.1 for the Z2 (23.5.A.0.570) but Im unable to flash TWRP through fastboot.
The command adb devices shows my phone, fastboot devices gives an empty response.
When I restart to the bootloader from adb and try to flash TWRP I get the message "< waiting for device >".
I tried on three different PCs including a clean install of Windows with all kind of different drivers, yet I cant get fastboot to work.
Am I stuck with this unrooted version of Android now or do you guys have any suggestions for me?
Thanks in advance!
Install drivers correctly
EugenStanis said:
Install drivers correctly
Click to expand...
Click to collapse
As I said I've tried all kind of different drivers (Android tools, Sony drivers and flahstool drivers). So for me it's hard to tell what I'm doing wrong.
My computer notices the phone (if I hold volume up and attach the charger), it just doesn't show up under fastboot devices.
EugenStanis said:
Install drivers correctly
Click to expand...
Click to collapse
Okay, apparently it was because of the driver signature stuff in Windows 10.. The fastboot command now works fine!
Next problem occurred though, flashed the newest TWRP recovery but as soon as I enter "adb reboot recovery" my phone just normally boots again..
Why do things never work out the right way for me as they are intended..
PaulusE said:
Okay, apparently it was because of the driver signature stuff in Windows 10.. The fastboot command now works fine!
Next problem occurred though, flashed the newest TWRP recovery but as soon as I enter "adb reboot recovery" my phone just normally boots again..
Why do things never work out the right way for me as they are intended..
Click to expand...
Click to collapse
Manually boot into recovery by booting up your device normally and when you see a violet LED, press vol+.