I am on oos10, oem unlocked. Was trying to install twrp and somewhere I saw to run a command 'fastboot flash boot twrp.img'. After running tgat the phone is on a permanent bootloop. I can switch it off using vol up+power key, but inserting the charger awakes it back to same warning screen which just won't go, whatever I do.
Is it a hard brick? Any suggestion?
Install twrp through magisk
Related
Okay, to start with, I've read the other threads about this. I understand the process that *should* work:
1. Power off.
2. Then, press and hold both all Volume Down + Power buttons at the same time until the LG Logo is being displayed on your LG V20.
3. Now, release the keys and press the above combination again however, this time you should wait until recovery mode menu is displayed.
...and I've tried the version where you keep holding the Volume Down button the entire time.
So, yes, I've reached the white screen where it asks you if you want to do a factory reset. I've hit "Yes" to both questions. The problem is that it really does a factory reset then.
---
After unlocking the bootloader, I installed TWRP via fastboot:
adb reboot bootloader
fastboot flash recovery twrp.img
fastboot reboot
...everything went fine.
But I can't get into recovery. And since I'm waiting to have TWRP working so that I can flash root, I can't boot into recovery via an app.
What did I do wrong?
EDIT:
Okay, it looks like TWRP isn't working properly. I tried "adb reboot recovery" and that got me to a dead Android icon and a "No command" message. I have no idea why TWRP isn't working.
Haphim said:
Okay, to start with, I've read the other threads about this. I understand the process that *should* work:
1. Power off.
2. Then, press and hold both all Volume Down + Power buttons at the same time until the LG Logo is being displayed on your LG V20.
3. Now, release the keys and press the above combination again however, this time you should wait until recovery mode menu is displayed.
...and I've tried the version where you keep holding the Volume Down button the entire time.
So, yes, I've reached the white screen where it asks you if you want to do a factory reset. I've hit "Yes" to both questions. The problem is that it really does a factory reset then.
---
After unlocking the bootloader, I installed TWRP via fastboot:
adb reboot bootloader
fastboot flash recovery twrp.img
fastboot reboot
...everything went fine.
But I can't get into recovery. And since I'm waiting to have TWRP working so that I can flash root, I can't boot into recovery via an app.
What did I do wrong?
EDIT:
Okay, it looks like TWRP isn't working properly. I tried "adb reboot recovery" and that got me to a dead Android icon and a "No command" message. I have no idea why TWRP isn't working.
Click to expand...
Click to collapse
to confirm, have you verified you are using the correct TWRP version for your V20?
in this step "fastboot flash recovery twrp.img" is your twrp image that you saved, named twrp.img? If its not, that command won't work correctly.
usually after I flash recovery, when still in the recovery menu, i choose reboot recovery just to make sure it did stick. If it reboots back to itself, then try rebooting the device, and again confirm with manually entering recovery. Maybe overkill but it works for me LOL.
Good luck!
I am in need of big help! I made a critical error after days of trying to navigate the minefields of rooting my device. I have a LG V20 h910 and it is no one-click wonder root. It made me work for it and I finally got it. I loaded LineageOS 14.1 and all was good until the USB OTG cable from my PS4 controller did not register anymore. Damn, that was a let down, and probably led to my careless move of needing to downgrade my TWRP, saw the version I needed, forgot these are device specific, and now I'm stuck in a hard place.
Perhaps the fix is easy, but I have not found the answer after many, many searches...
I had TWRP 3.2.1-2 and needed to downgrade to 3.2.1-0 to try SuperRom (hoping it would have OTG ability). I hastily grabbed the first TWRP 3.2.1-0, threw it on the SD card, wiped everything except internal storage, and flashed the img, and did a reboot. Road block went up.
I tried getting back into recovery, did the PWR and DOWN pressing combo and got the Factory Reset screen, but after clicking "Yes" to both, instead of getting the TWRP screen, I got this error screen (attached).
I tried another idea - hooked it up USB to my PC and tried accessing it via adb/fastboot. I tried multiple drivers for my device, but no adb and no fastboot devices were ever found. The only thing that almost worked was booting phone into FASTBOOT mode by holding DOWN btn and plugging in a USB cable attached to PC. Once in FASTBOOT mode, My PC at least saw the ID for fastboot device. I tried to flash TWRP via fastboot, and it looked like it would happen, but in the end there was no phone screen response to my attempt, and the cmd window on my PC would get stuck and just hang.
Can someone please advise me on how I can fix this problem?
I have huawei p8 lite dual sim android 6 marshallow and i tried all tools to root it but failed.Finally i tried to install twrp.I unlock the bootloader and with adb i wrote adb reboot bootloader,fastboot devices,fastboot flash recovery recovery.img and fastboot reboot but twrp didn't saved.When i boot to recovery the stock recovery was still there..What i have to do?
nikriga said:
I have huawei p8 lite dual sim android 6 marshallow and i tried all tools to root it but failed.Finally i tried to install twrp.I unlock the bootloader and with adb i wrote adb reboot bootloader,fastboot devices,fastboot flash recovery recovery.img and fastboot reboot but twrp didn't saved.When i boot to recovery the stock recovery was still there..What i have to do?
Click to expand...
Click to collapse
Did fastboot gave some error message, also did you only test to go to recovery straight from fastboot, because that is other recovery which can't be changed.
keikari said:
Did fastboot gave some error message, also did you only test to go to recovery straight from fastboot, because that is other recovery which can't be changed.
Click to expand...
Click to collapse
Fastboot didnt gave me error and i tried to go recovery from fastboot without reboot and i tried recovery with reboot.i cant understand whats going on made it all correct
nikriga said:
Fastboot didnt gave me error and i tried to go recovery from fastboot without reboot and i tried recovery with reboot.i cant understand whats going on made it all correct
Click to expand...
Click to collapse
Just to make sure because the recovery stuff with this device can be at start a bit confusing. Please check does the recovery you boot into have factory reset option in it.
Also can you give a link for the twrp you flashed?
keikari said:
Just to make sure because the recovery stuff with this device can be at start a bit confusing. Please check does the recovery you boot into have factory reset option in it.
Also can you give a link for the twrp you flashed?
Click to expand...
Click to collapse
I tried a lot of versions of twrp from forum here for p8 lite.Today i tried 3.0.2.I cant select factory reset because the phone crashed because the bootloader is unlocked i think.But if you think that the phone has to be in factory reset i will relock bootloader.Another question.If i downgrade firmware to android 5.0 tools such king root will be success?I have firmware from my county greece.If i choose android 5 firmware from other country i will have problem?
nikriga said:
I tried a lot of versions of twrp from forum here for p8 lite.Today i tried 3.0.2.I cant select factory reset because the phone crashed because the bootloader is unlocked i think.But if you think that the phone has to be in factory reset i will relock bootloader.Another question.If i downgrade firmware to android 5.0 tools such king root will be success?I have firmware from my county greece.If i choose android 5 firmware from other country i will have problem?
Click to expand...
Click to collapse
1. Booloader unlocking only affects to what you can flash in fastboot, it doesn't affect stock recovery funtionality.
I asked about factory reset option, because I wanted to make sure you aren't booting to "recovery2/eRecovery". (It doesn't have factory reset option)
2. Avoid using kingoroot and other oneclick root apps if it is possible.
3. Your firmware version doesn't matter.
4. Bootloader unlocking can't cause crash. Locked bootloader could cause crash if system is modified(I think), but you would still be able to get recovery.
One way to make sure you boot to normal recovery is to connect your phone to pc --> open command line --> type "adb reboot recovery". This won't take you to erecovery
I can't do any better help with the current information.
After you successfully flash the recovery with fastboot (always use the latest!) You need to do these things in order (and fast) in order to but to TWRP. If you don't it will boot to stock recovery and you have to fastboot flash again.
You must
a) write fastboot reboot in the console but don't pass Enter!!
b) hold VOLUME UP
c) (still holding VOL UP) presss Enter and remove the USB cable immediately once it says your device is booting now.
Keep holding VOL UP until you boot to TWRP. Allow modifications.
For root you will flash Magisk (you know, normal zip), which a) is open source, so no sneaky stuff and b) can hide root from apps as a bonus. You can always get the zip here: http://tiny.cc/latestmagisk
Important: If you have other root solutions install them for example SuperSU has an uninstall option. Then flash Magisk
JpegXguy said:
After you successfully flash the recovery with fastboot (always use the latest!) You need to do these things in order (and fast) in order to but to TWRP. If you don't it will boot to stock recovery and you have to fastboot flash again.
You must
a) write fastboot reboot in the console but don't pass Enter!!
b) hold VOLUME UP
c) (still holding VOL UP) presss Enter and remove the USB cable immediately once it says your device is booting now.
Keep holding VOL UP until you boot to TWRP. Allow modifications.
For root you will flash Magisk (you know, normal zip), which a) is open source, so no sneaky stuff and b) can hide root from apps as a bonus. You can always get the zip here: http://tiny.cc/latestmagisk
Important: If you have other root solutions install them for example SuperSU has an uninstall option. Then flash Magisk
Click to expand...
Click to collapse
The recovery you go from fastboot is eRecovery. You can't boot to stock or TWRP recovery directly from fastboot. If you choose shutdown from eRecovery then you can just go to TWRP with normal way (power + VOL UP). Going to eRecovery doesn't undo TWRP installation. (This also means you can do force update even with TWRP installed, I think, not 100% sure)
keikari said:
The recovery you go from fastboot is eRecovery. You can't boot to stock or TWRP recovery directly from fastboot. If you choose shutdown from eRecovery then you can just go to TWRP with normal way (power + VOL UP). Going to eRecovery doesn't undo TWRP installation. (This also means you can do force update even with TWRP installed, I think, not 100% sure)
Click to expand...
Click to collapse
I do this every time. See surdu's post here. Fastboot reboo is just a reboot, so the familiar key combo will boot to recovery.
JpegXguy said:
I do this every time. See surdu's post here. Fastboot reboo is just a reboot, so the familiar key combo will boot to recovery.
Click to expand...
Click to collapse
I just wanted to point out that you don't need to re-flash if you happen to only press vol up in fastboot.
I recently got a huawei Nexus 6p. I had it with TWRP and rooted. The battery in these as you know the batteries are not the best. I had been told to try a hard factory reset. I then was able to wipe using TWRP and then lost the recovery. I was able to flash a stock version of the android 8.1.0, however, Now when I try to boot in recovery mode I get nothing but an android guy and say's something like no command found. I haven't been able to root it again or flash TWRP. My goal is to root and flash nethunter. Is there any way of fixing the recovery or flashing a new one.
Once you are on the screen with the little green guy laying down, hold the power button and tap volume up. That should take you into recovery.
Boot into Download mode, (voldown + power) then flash normally with fastboot.
https://dl.twrp.me/angler/twrp-3.2.3-0-angler.img.html
Download image to desktop, open command prompt, and type "fastboot flash recovery twrp-3.2.3-0-angler.img" without quotations. You need device drivers and android sdk tools. Bootloader needs to be unlocked as well.
Uninstalled magisk and the screen is black, only vibrates when pressing power button or the right side of the screen. I don't even know how to turn off the phone. I was able to do it because the warning of the bootloader being unlocked appears. How I can flash stock rom? abd won't recognize the phone.
I saw https://forum.xda-developers.com/oneplus-6t/how-to/tool-6t-msmdownloadtool-v4-0-oos-9-0-5-t3867448 this while searching but I'm scared since it locks the bootloader after.
Thank you
EnderEgg said:
Uninstalled magisk and the screen is black, only vibrates when pressing power button or the right side of the screen. I don't even know how to turn off the phone. I was able to do it because the warning of the bootloader being unlocked appears. How I can flash stock rom? abd won't recognize the phone.
I saw https://forum.xda-developers.com/oneplus-6t/how-to/tool-6t-msmdownloadtool-v4-0-oos-9-0-5-t3867448 this while searching but I'm scared since it locks the bootloader after.
Thank you
Click to expand...
Click to collapse
Can you get into fastboot? Hold down both volume buttons together and see if you can force your device into fastboot mode. Then from there, get the TWRP img file and use fastboot to boot the image, then flash the stock OOS rom, either from TWRP install option or with adb sideload of you're comfortable doing that.
H4X0R46 said:
Can you get into fastboot? Hold down both volume buttons together and see if you can force your device into fastboot mode. Then from there, get the TWRP img file and use fastboot to boot the image, then flash the stock OOS rom, either from TWRP install option or with adb sideload of you're comfortable doing that.
Click to expand...
Click to collapse
I can, could you link me to a tutorial how to boot the image? I got it already, but unsure of how to proceed. Many thanks!
edit: now when I connect it to the PC it stays on the warning that the boot loader is unlocked
Now I was able to start TWRP but I still don't know how to send the file to the phone;
ADB recognizes the phone when TWRP is running
I think it's solved, thanks a bunch!
Hi,
I'm not new in flashing rom but this time i have a big problem !
My oneplus 6t stuck in the "press power key to pause boot" page.
Pressing power do nothing same as power + vol down.
I was using lineage 16 fajita, no problem but wanted to upgrade to lineage 17.
I went to bootloader, flash twrp, boot on twrp, and flash rom from the zip on my internal storage.
everything goes well with no error.
on reboot the phone stuck on the boot page.
I'm under linux, adb and fastboot ok (no windows os at home).
What can i do ?
Thanks for you help.
OK i found how to shut down the phone by pressing : vol up + power 15" with the phone unplugged
After that pressing vol up + vol down + power make the phone boot on bootloader.
I try to flash the twrp recovery now with "fastboot flash boot recovery.img" (no error)
But when i try to enter recovery (vol down + power) the screen stuck in the boot page
Any idea ?
You need to boot to the twrp recovery first, THEN flash it to memory from that recovery.
I think the command is 'fastboot boot <recovery.img>
a491765 said:
Hi,
I'm not new in flashing rom but this time i have a big problem !
My oneplus 6t stuck in the "press power key to pause boot" page.
Pressing power do nothing same as power + vol down.
I was using lineage 16 fajita, no problem but wanted to upgrade to lineage 17.
I went to bootloader, flash twrp, boot on twrp, and flash rom from the zip on my internal storage.
everything goes well with no error.
on reboot the phone stuck on the boot page.
I'm under linux, adb and fastboot ok (no windows os at home).
What can i do ?
Thanks for you help.
Click to expand...
Click to collapse
Different android versions maybe causing this issue. Lineage 17 requires A10 base, no? Could be wrong.
When this happened to me I tried all sorts of things except MSM Tool.
Reboot phone. On the next hang, try holding down the volume down and or volume up buttons when it hangs. It worked for me and let me boot to twrp so I could format internal storage.
But it was indeed some strange undocumented key combo that allowed me to boot.
If else fails you could just MSM Tool back, flash Android 10 from OnePlus then flash LOS17.
g90814 said:
You need to boot to the twrp recovery first, THEN flash it to memory from that recovery.
I think the command is 'fastboot boot <recovery.img>
Click to expand...
Click to collapse
When i boot on bootloader, plug phone, and use this method my phone reboot and stuck on "Fastboot Mode" screen.
Scott said:
Different android versions maybe causing this issue. Lineage 17 requires A10 base, no? Could be wrong.
When this happened to me I tried all sorts of things except MSM Tool.
Reboot phone. On the next hang, try holding down the volume down and or volume up buttons when it hangs. It worked for me and let me boot to twrp so I could format internal storage.
But it was indeed some strange undocumented key combo that allowed me to boot.
If else fails you could just MSM Tool back, flash Android 10 from OnePlus then flash LOS17.
Click to expand...
Click to collapse
Oh my bad i flash lineage 17 directly from my lineage 16 under android 9 didn't think about upgrading android 10 first... !!
Yeas i already try combo like vol down or up or power... no way to access twrp...
Well i found a solution to have TWRP back by following a tutorial about slots.
I was on slot B and fastboot tried to flash recovery on slot B !!
so i did :
*fastboot getvar current-slot > answer B
*fastboot flash boot_a recovery.img
*fastboot --set-active=a
after that reboot to recovery and yes ! TWRP is back !
From there i installed the twrp zip and flash it and finally installed the lineage 16 zip and flash it.
A wipe data, dalvik... done and IT WORKs !!!
Thanks for helping !