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Hi, I wanted to return my g2 to stock rom because I didn't like my custom rom, so I followed the lg flash tool guide(tot):http://forum.xda-developers.com/showthread.php?t=2432476
It worked, but it was jelly bean 4.2 instead of Kit kat 4.4, so I tried to install TWRP so that I can install again a custom rom, but when I tried to backup before flashing TWRP, it wrote "backup Failed", I tried again and it wrote it again, but then the phone just stayed on the boot animation for a few seconds and didnt turn on again. After that, again I tried to do the flash tool method just to return to stock rom but now, it just doesn't work, whenever I insert the DLL and TOT file and start the installation, it goes up to 80% extremely quick and just boots up to TWRP without actually installing the stock rom. So now I'm stuck here with TWRP but without a system to boot to and no rom on my sd card to flash.
I really need help here because I have no idea how to continue.
Thanks for any help!
PriStol said:
Hi, I wanted to return my g2 to stock rom because I didn't like my custom rom, so I followed the lg flash tool guide(tot):http://forum.xda-developers.com/showthread.php?t=2432476
It worked, but it was jelly bean 4.2 instead of Kit kat 4.4, so I tried to install TWRP so that I can install again a custom rom, but when I tried to backup before flashing TWRP, it wrote "backup Failed", I tried again and it wrote it again, but then the phone just stayed on the boot animation for a few seconds and didnt turn on again. After that, again I tried to do the flash tool method just to return to stock rom but now, it just doesn't work, whenever I insert the DLL and TOT file and start the installation, it goes up to 80% extremely quick and just boots up to TWRP without actually installing the stock rom. So now I'm stuck here with TWRP but without a system to boot to and no rom on my sd card to flash.
I really need help here because I have no idea how to continue.
Thanks for any help!
Click to expand...
Click to collapse
You could load the zip you want to flash to a USB drive, then connect it to your phone with an OTG cable. TWRP can read from OTG.
Can you get into download mode? (phone off, hold up volume, insert USB cable connected to computer)
thecadman99 said:
You could load the zip you want to flash to a USB drive, then connect it to your phone with an OTG cable. TWRP can read from OTG.
Can you get into download mode? (phone off, hold up volume, insert USB cable connected to computer)
Click to expand...
Click to collapse
I just tried to do it through an OTG cable, it said that it flashed successfuly, but when I restarted it just went back to TWRP without booting up the system. Also, when I tried to wipe dalvik and cache, it said "wipe failed.". When I rebooted it said "It seems that the device is not rooted"... I really don't know what to do now And I can get to download mode.
PriStol said:
I just tried to do it through an OTG cable, it said that it flashed successfuly, but when I restarted it just went back to TWRP without booting up the system. Also, when I tried to wipe dalvik and cache, it said "wipe failed.". When I rebooted it said "It seems that the device is not rooted"... I really don't know what to do now And I can get to download mode.
Click to expand...
Click to collapse
Can you get ADB connectivity from within TWRP if you connect your device to the PC?
If so you could do the following command from your computer.
Code:
adb push ROM.zip /sdcard/Download/
Then navigate to your /sdcard/Download folder and flash the ROM.
d00lz said:
Can you get ADB connectivity from within TWRP if you connect your device to the PC?
If so you could do the following command from your computer.
Code:
adb push ROM.zip /sdcard/Download/
Then navigate to your /sdcard/Download folder and flash the ROM.
Click to expand...
Click to collapse
When I try to do ADB sideload on TWRP, it just loads forever and doesn't do anything... So I cant get ADB connectivity.
PriStol said:
When I try to do ADB sideload on TWRP, it just loads forever and doesn't do anything... So I cant get ADB connectivity.
Click to expand...
Click to collapse
TWRP should detect your phone without the need for ADB sideload.
If I boot into TWRP, I can instantly run "adb devices" from the terminal my phone is picked up as a "device".
If I choose ADB Sideload, my TWRP hangs just like yours does, but if I run another "adb devices" command my device shows up in sideload mode, regardless of it hanging.
Conclusion, try running the adb commands without running sideload in the first place.
Edit: Upon reflection, this is most likely because I have created an RSA key between the PC and my phone.
d00lz said:
TWRP should detect your phone without the need for ADB sideload.
If I boot into TWRP, I can instantly run "adb devices" from the terminal my phone is picked up as a "device".
If I choose ADB Sideload, my TWRP hangs just like yours does, but if I run another "adb devices" command my device shows up in sideload mode, regardless of it hanging.
Conclusion, try running the adb commands without running sideload in the first place.
Click to expand...
Click to collapse
It just says error: device not found whenever I do a command.
Please help, I really dont know what to do.
PriStol said:
I just tried to do it through an OTG cable, it said that it flashed successfuly, but when I restarted it just went back to TWRP without booting up the system. Also, when I tried to wipe dalvik and cache, it said "wipe failed.". When I rebooted it said "It seems that the device is not rooted"... I really don't know what to do now And I can get to download mode.
Click to expand...
Click to collapse
Did you wiped absolutely everything before flashing? Do you have previous Nandroid backup you can just flash. Anyway if you connect your phone to PC while in TWRP what does your PC show. Anything?
yanis15 said:
Did you wiped absolutely everything before flashing? Do you have previous Nandroid backup you can just flash. Anyway if you connect your phone to PC while in TWRP what does your PC show. Anything?
Click to expand...
Click to collapse
I tried to wipe but it just wrote "wipe failed". I do have a back up on my computer but for some reason when I try to connect my phone to my computer through an OTG cable, it doesn't find the backup. And my pc doesn't show anything when I connect my phone.
Hello, I messed up on my device P9 Lite, it is unlocked, bootload unlocked, FRP Unlocked and TWRP is installed ( or i guess it was):
I wanted to install a stock firmware and formatting SD card, I went to TWRP and i wipe everything but i did something wrong because my device can go only in "Huawei eRecovery" and "Fastboot mode".
Furthermore my PC doesn't recognize the mobile so i'm unable to use ADB or other toolkit and for a beautiful ending i can't access to twrp anymore.
I don't know what to do, i jsut tried to change usb porta and usb cable.
Thank you very much
m0rix93 said:
Hello, I messed up on my device P9 Lite, it is unlocked, bootload unlocked, FRP Unlocked and TWRP is installed ( or i guess it was):
I wanted to install a stock firmware and formatting SD card, I went to TWRP and i wipe everything but i did something wrong because my device can go only in "Huawei eRecovery" and "Fastboot mode".
Furthermore my PC doesn't recognize the mobile so i'm unable to use ADB or other toolkit and for a beautiful ending i can't access to twrp anymore.
I don't know what to do, i jsut tried to change usb porta and usb cable.
Thank you very much
Click to expand...
Click to collapse
try unlocking your bootloader with fastboot, and then flash twrp through fastboot, then try booting into recovery while your phone is not connected to your pc, it should work.
I'm using SRK Tool i'm trying to unlock bootloader (i got yet the number) and i plug my device in fastboot but the tool is "waitinf for device" and doesn't see it
Did you install the drivers? Just install Hisuite, that should do it. Then flash TWRP via fastboot flash recovery xxxxxx.img
In TWRP there's an option to activate ADB. It's in Advanced. Shouldn't need it at this point though. The device should be visible in Explorer once it's in recovery.
Download and install ADB and fastboot minimal driver. Then go to the folder where they are installed and open a cmd there, boot your phone to fastboot and type "fastboot devices"
You should be able to see your device detected, then flash the recovery image with the command "fastboot flash recovery twrp.img" and replace twrp with whatever the recovery image is called.
The easiest way should be transferring stock ROM (update.app) to dload folder on external sd card. You can use card reader, for example. Then just use 3 buttons combo and flashing should soon begin.
m0rix93 said:
I'm using SRK Tool i'm trying to unlock bootloader (i got yet the number) and i plug my device in fastboot but the tool is "waitinf for device" and doesn't see it
Click to expand...
Click to collapse
srktool uses adb, but that only works if android is booted. try fastboot oem unlock (unlock code), and then fastboot flash recovery (path to recovery image)
Guys, thank you very much for your replays and patience.
I solved the problem, my 64 GB SD Card was damaged :crying: so yesterday I buyed a new memory and I used the "dload method" and everything went right!
Furthermore I update from EMUI 4.1 to 4.1.1 :fingers-crossed:
Thanky you!
I want to unroot my phone and I did manage to flash stock recovery.
But now I want to flash stock firmware through adb sideload.
But when I typ adb devices it does not recognize my device and when I type the sideload command, it says error: device not found.
I am using minimal adb fastboot version 1.4.2.
I already tried to use all the different kinds of drivers @ device manager
I am really out of idea's and hope someone here knows what to do.
Edit:
When I use TWRP recovery and I use sideload, adb can recognize my device (and fastboot can also recognize my device).
So only through stock recovery adb cannot recognize my device.
And I remember that USB debugging is off, I do not know if that has to do something with this?
vldholy said:
When I use TWRP recovery and I use sideload, adb can recognize my device (and fastboot can also recognize my device).
So only through stock recovery adb cannot recognize my device.
And I remember that USB debugging is off, I do not know if that has to do something with this?
Click to expand...
Click to collapse
For the stock recovery, Side load Works.
But only Side load, not "adb devices".
After you have selected Side load from stock recovery,
(Boot in stock recovery,
Select your language, -> install from usb -> yes )
Only after this, your device will show in "adb devices"
It will show as Side load device. Then Side load as usual., It will work.
P.S. - USB debugging is not checked in recovery mode.
pollob666 said:
For the stock recovery, Side load Works.
But only Side load, not "adb devices".
After you have selected Side load from stock recovery,
(Boot in stock recovery,
Select your language, -> install from usb -> yes )
Only after this, your device will show in "adb devices"
It will show as Side load device. Then Side load as usual., It will work.
P.S. - USB debugging is not checked in recovery mode.
Click to expand...
Click to collapse
Sorry for late reply!
I did what you said, but I get this error:
error: device '(null)' not found
And when I select install from usb -> yes, Windows notify that there is a problem with the device and cannot recognize it.
What drivers must be installed, OnePlus drivers and ADB drivers?
Does someone know how to fix it?
vldholy said:
Does someone know how to fix it?
Click to expand...
Click to collapse
The problem is stock recovery that you Install does not work well in windows 10
1 Boot in bootloader install TWRP again here
2 Reboot in TWRP Recovery
3 Wipe> Advance Wipe> Select Dalvik & Cache System & Data> Swipe to Wipe
4 Reboot in TWRP Recovery Transfer OOS 4.5.8 Full Rom Zip to the device over MTP
5 Install Menu> Select OOS 4.5.8 Full Rom Zip> Swipe to Flash
6 Reboot System
Now you are in full stock OOS
If you restart now in stock recovery you will see that sideload will work
Adb sideload with stock recovery not work in Windows 10, if you use Windows 7, you'll find that it work well.
The problem is stock recovery from the official site
This OP5_recovery.img
If you are in TWRP and install OOS stock rom sideload will work in windows 10
Had driver issues to what j did was with twrp installed I transferred the Oxygenos rom to internal storage installed it from twrp and then put the OnePlus recovery back on
I accidently formated everything in twrp and ended without OS and was stuck in custom twrp. I tried to flash stock recovery and that went ok. Now whatever i do i cant sideload stock zip file using adb. Fastboot is recognized but adb is not. When connected to pc shows error. I have tried to install, reinstall all sorts of drivers but all the same. Is there a way to get back to stock using fastboot commands manualy? Please help !!
Use fastboot to flash twrp again and then flash the stock rom. You can transfer the stock rom to the device by connecting it to your PC while being in TWRP.
himanshuladia said:
Use fastboot to flash twrp again and then flash the stock rom. You can transfer the stock rom to the device by connecting it to your PC while being in TWRP.
Click to expand...
Click to collapse
You mean stock twrp or custom because i have stock but when connected i cant copy files on device because it is not recognized by PC
Del.
TWRP is always a custom recovery. What you currently have is the stock oxygen OS recovery. Flash TWRP again and boot into twrp. Then, while being in TWRP, conmect your phone to PC.
himanshuladia said:
TWRP is always a custom recovery. What you currently have is the stock oxygen OS recovery. Flash TWRP again and boot into twrp. Then, while being in TWRP, conmect your phone to PC.
Click to expand...
Click to collapse
Ok will try !
Del.
Finaly i did it after a few hours of trying to find a solution and figuring out why my PC doesn't recognize phone in adb I tried on an old PC with win7 installed and sideload went smooth like butter on first attempt. I have tried on two computers with win10 installed, tried with all sorts of USB cables, usb on computer 3.0 , 2.0, tried all sorts of drivers and nothing helped. I hope that someone else will have a benefit of this post and sort of a solution if he will have the same issue. Thanks to everyone that tried to help out!
Yesterday i used flashboot to install the recovery and i unlocked the bootloader. It went all fine, so in the twrp i did the wipes and all to use the "data" folder, then i rebooted the phone, like the guide said but now it doesn't work anymore, the only thing it does is that when i plug in the computer usb Windows say "device not recognized"
What can i do?
Have you got access to Minimal ADB & Fastboot and are you able to go to twrp for which you've downloaded