Hi everyone! I followed multiple guides on how to unlock and flash TWRP on my LG G6 (H870). I successfully unlocked the bootloader, booted into the fastboot and performed flashing the latest TWRP recovery for my phone. Afterwards, I reboot the phone (tried nearly everything like disconnecting USB before, performed "fastboot reboot" or simply shutting down with the power button) and use the combo to get to the factory reset screen. After yes and yes I see the starting screen of TWRP, but after about five seconds the screen goes black and the phone continues with normal boot.
I appreciate any help!
Thread closed at OP's request.
Related
When I go to put the official twrp on it doesn't stick after reboot. before reboot I can't flash anything either like magisk. Nothing shows inside the folders and after I reboot and go back to twrp it shows no command
Me too. I've flashed twrp-sanders and also twrp-potter. The phone will never boot into twrp recovery on its own. Also, when I fastboot boot recovery from PC, either version of TWRP loads splash screen but is frozen and requires a hard reset.
The phone is unlocked as it indicates this on boot up.
Only once after the first attempt of flashing twrp-sanders recovery did the phone boot into twrp recovery and I flashed Magisk from there. Since then, no dice
Any ideas or direction would be greatly appreciated. Thank you
Got it to finally work. I started over by flashing "twrp-sanders-r2.img".
Make sure the first thing you do after flashing the recovery is to push volume button until you see the recovery option. Then press power button to select it. It will take several seconds before you can interact with the program.
I made sure I had the magisk.zip ready to flash first thing I did.
If you don't go to recovery immediately after flashing the twrp, you'll have to start over.
I hope this helps
Hey everyone,
I decided to root my lg g6 and got a fickle. After unlocking the device and flashing TWRP I tried to boot into it (''adb reboot recovery'' command) and it deleted all data and then twrp shows on screen for a split second and almost instantly boots normally into android so I set it up while still being unable to access twrp and any of it's functions. Does anyone have any idea what could be the problem?
P.S. Of it helps: before that i had a problem that every time I tried to use the ''adb reboot recovery'' command the console said ''no devices/emulators found''. After a couple tries I wanted to check whether the phone was connected just to make sure (''adb devices'') and after that it worked and I ran into the problem above.
Thanks for all the answers
When you first unlock BL and flash recovery you have to manually enter recovery mode.
Hold power and vol down till it turns off. Hold same buttons again until you see lg logo. Release power and press and hold again.
Then ask you to wipe etc hit yes both times and it will boot to twrp.
I tried that but it still doesn't go into twrp. After confirming that wipe stuff it just boots into android (without wiping)
Ulrih said:
I tried that but it still doesn't go into twrp. After confirming that wipe stuff it just boots into android (without wiping)
Click to expand...
Click to collapse
You have to flash TWRP recovery and when it complete then use the button combo to boot into twrp, otherwise it will boot and restore the recovery.
flash twrp
button combo to twrp
done
Yes I've done that but the problem still exist.
btw thanks for the help
Maybe try fastboot flash recovery recovery.img
Try the all-in-one tool on this forum
By the way, I am running into the same issue.. I have a LG G6 US997,.. I have tried installing TWRP unofficial ones so many times and every time i manually try to access the recovery.. the phone simply wipes all my data to default
Hello,
I have the same problem. Did anyone figure out how to solve it? I'd highly appreciate any help.
If I try to boot into recovery, it asks me to factory reset, i hit yes twice and then the phone just goes on to boot normally. The data is not wiped but I can't get into TWRP.
If I enter "fastboot reboot recovery" after flashing TWRP it returns "fastboot: usage: unknown reboot target recovery"
Hi,
I did a TWRP wipe (everything checked) to prepare for a restore to stock, but my device is now stuck at the very first "Google" screen with the pad lock icon at the bottom. How do I get it to boot?
goister said:
Hi,
I did a TWRP wipe (everything checked) to prepare for a restore to stock, but my device is now stuck at the very first "Google" screen with the pad lock icon at the bottom. How do I get it to boot?
Click to expand...
Click to collapse
So since everything was checked, that means you wiped the system partition. The device will not boot if you do that unless you flash a factory image via fastboot or new ROM via TWRP
OK, I thought wiping /system would just bring it back to factory state. 2 questions now
1. How do I get to recovery when it's always stuck at the Google screen with no adb access? Would I have to wait for the battery to run out (hence turn off), charge it for a while, then use the buttons to boot to recovery, or is there a faster way?
2. I am actually trying to revert to stock ROM (downloaded at https://developers.google.com/android/images#angler) by following step 10 of the Heisenburg guide (https://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928) which advises me to use fastboot to flash the individual images. In my case, how do I boot to fastboot?
OK, so I managed to boot to the bootloader and run the following commands as per the Heisenberg guide (using the stock MTC20L firmware)
Code:
fastboot flash bootloader C:\angler\images\bootloader-angler-angler-xx.xx.img
fastboot reboot-bootloader
fastboot flash radio C:\angler\images\radio-angler-angler-xx.xx.img
fastboot reboot-bootloader
fastboot flash boot C:\angler\images\boot.img
fastboot erase cache
(above command is unnecessary on Android 7.1.2 and above)
fastboot flash cache C:\angler\images\cache.img
(above command is unnecessary on Android 7.1.2 and above)
fastboot flash recovery C:\angler\images\recovery.img
fastboot flash system C:\angler\images\system.img
fastboot flash vendor C:\angler\images\vendor.img
Everything was successful, and I did a fastboot reboot after that.
However, my device still doesn't boot up. This time. It's boot loops for a few times before turning off.
I tried booting up to bootloader with power/vol-. Curiously, I can now only do this when cable is connected. If cable is disconnected, the orange LED just blinks once when power button is pressed, and nothing happens. Once cable is connected, then I'm able to boot up to bootloader with the button combination. I then retried the flash process again, but still no go. I noticed after fastboot reboot that the orange LED blinked a few times before rebooting and boot looping.
Kinda stuck now, any ideas?
Try booting into recovery and doing a factory reset. I've had that happen to me a few times after flashing factory images and a wipe in recovery always fixed it.
Just for future information: if at any time the device is stuck in a bootloop you can get it to robot into recovery by holding the power and volume down buttons for 10 seconds, or get it to boot into bootloader by holding power and volume up buttons for 10 seconds.
Face_Plant said:
Try booting into recovery and doing a factory reset. I've had that happen to me a few times after flashing factory images and a wipe in recovery always fixed it.
Just for future information: if at any time the device is stuck in a bootloop you can get it to robot into recovery by holding the power and volume down buttons for 10 seconds, or get it to boot into bootloader by holding power and volume up buttons for 10 seconds.
Click to expand...
Click to collapse
Thanks. Booting into stock recovery shows an exclamation sign with "no command", since I don't have TWRP anymore. Would I need to first flash TWRP before I can do a factory reset?
I just tried flashing to the same sock firmware as before the problem happened (7.1.2 N2G47W) but still same problem. I notice that after the Google logo disappears and the screen goes blank, the orange LED blinks 10 times before rebooting.
Edit: Tried factory resetting in stock recovery (by holding down power button and pressing vol+), the rebooting after factory reset. Still getting a boot loop.
OK I solved the problem. Apparently if you reboot after the flash, you need to disconnect the USB cable, else it will boot loop.
OK I solved the problem. Apparently if you reboot after the flash, you need to disconnect the USB cable, else it will boot loop.
goister said:
OK I solved the problem. Apparently if you reboot after the flash, you need to disconnect the USB cable, else it will boot loop.
Click to expand...
Click to collapse
brother help me! i am facing same issue
first little info abt my device.
my device was running on android nougat with twrp recovery installed but the device was not rooted.
so get back to stock and install oreo I followed every step given on http://www.androidexplained.com/nexus-6p-revert-stock/ but somehow my phone is stuck at bootloop with no recovery installed.
Please help me here.
As per the Heisenberg guide, if you don't install root (SuperSU or Magisk), TWRP won't stick, so you'll go back to stock recovery.
For me, simply unplugging the USB cable after rebooting after a flash solved my problem. For some reason, if the cable is connected during reboot, it would boot loop.
brother, somehow I managed to install twrp. but everytime I touch it 2-3 times the phone gets switched off.
then it keeps rebooting to 'Google' logo.
can you tell me what should I do now?
@goister Hi how you manage to get to recovery when it's always stuck at the Google screen with no adb access. Please I am stuck there
tommast said:
@goister Hi how you manage to get to recovery when it's always stuck at the Google screen with no adb access. Please I am stuck there
Click to expand...
Click to collapse
hi, did youmanage to solve this problem? I am aving the exct same problem. Disconnecting the ucb isnt working for me
"your device software cannot be checked for corruption" after installing twrp, help!!
Hello, as title says, following oem unlock procedure, i flashed twrp using fasboot however i could never boot it and now when i try to go to fastboot mode and/or reboot, i see this message "your device software cannot be checked for corruption[...] please lock bootloader"!! Dunno what to do? Please help!
Easy: do absolutely nothing, this is intended behaviour. Unlocking the bootloader leads to the displaying of this message on boot up. Just LG's way of saying continue at your own risk.
Ok so they're even more annoying than samsung..! Anyway, my problem is : how do i enter TWRP..? I flashed again, successfully.. Then i dunno how to enter it!
"The stock recovery appears but you have to select the factory reset option and it will boot into TWRP" i read this. Well it's wrong. Doing so just launch the factory reset!
This video https://www.youtube.com/watch?v=MR4DTgTxhGI shows phone reboots to TWRP after entering "fastboot reboot" (once recovery was flash) : here it just reboots normally!
"Finally Type “fastboot boot TWRP-Recovery-filename.img” to boot your LG G6 into TWRP Recovery" well i thought about that and tried it :
D:\Android\ADB&Fastboot>fastboot boot recovery.img
downloading 'boot.img'...
OKAY [ 0.901s]
booting...
FAILED (remote: unknown command)
finished. total time: 0.925s
I'm very disapointed so far, i expected the G6 to be easier to handle the S7 but it's a pain even before i start using it.. Hell!!
It seems to me that you didn't boot into twrp immediately after flashing it via fastboot. Afaik it's important that you don't boot into OS after flashing, otherwise twrp will be overwritten with stock recovery. I had the same problem when I did the procedure.
The only way I got it to work was booting into twrp via button combo immediately after flash (you know - keep pushing power and vol- until Lg G6 logo appears, release only power and immediately push it again, keep 'em pushed until factory reset, confirm twice and it should boot into twrp). Once you've booted into twrp directly after flashing, it should stick.
grushnickij said:
It seems to me that you didn't boot into twrp immediately after flashing it via fastboot. Afaik it's important that you don't boot into OS after flashing, otherwise twrp will be overwritten with stock recovery. I had the same problem when I did the procedure.
The only way I got it to work was booting into twrp via button combo immediately after flash (you know - keep pushing power and vol- until Lg G6 logo appears, release only power and immediately push it again, keep 'em pushed until factory reset, confirm twice and it should boot into twrp). Once you've booted into twrp directly after flashing, it should stick.
Click to expand...
Click to collapse
After doing this, for TWRP to stick, you have to flash a custom rom, or delete the system/bin/install-recovery.sh to prevent stock recovery overtwrite
Phone :asus zenfone 3 ze552kl
I unlocked the bootloader, then installed TWRP Recovery 3.2.1 ZE552KL, then the twrp screen opened without any problems. After that, I finally installed the magisk 25.0 zip file I downloaded from the install section in TWRP and pressed restart. TWRP told me something about installing TWRP versions and I confirmed it. Then the phone started to turn on and off infinitely. I keep seeing the bootloader unlocked warning screen and after 3 seconds the phone turns off, turns back on, turns off, turns back on. When I click the enter the recovery mode button, the phone turns off and on again and I cannot enter the recovery mode in any way. There is nothing I can enter except the FASTBOOT screen. I don't care if my data is gone. Please someone with knowledge help me
flash boot.img and format cache from fastboot. next time follow the official magisk installation instructions.