Bricked (No OS installed, Only TWRP) - LG V20 Questions & Answers

Title explains it all, I recently installed TWRP so I could edit build.prop to get the google assistant. It worked btw, but I wanted to flash the pixel launcher and when I did, I rebooted and it gave me: encryption unsuccessful. I read online that i should just say yes and just wipe cache in twrp. It asked for a password in TWRP so i pressed cancel and I wiped cache. Boom! I was stuck in a TWRP bootloop. Now I tried to wipe everything but I wiped /system. Somebody please please please help me!

As long as you have access to TWRP you should be able to recover. If you need to restore the system partition you could use this DEODEX version. Follow thread instructions (download RAR, extract system.img, load to SD and flash via TWRP).
http://forum.xda-developers.com/v20/development/h918-stock-deodex-debloat-t3499423

Nope
jaysonic88 said:
As long as you have access to TWRP you should be able to recover. If you need to restore the system partition you could use this DEODEX version. Follow thread instructions (download RAR, extract system.img, load to SD and flash via TWRP).
http://forum.xda-developers.com/v20/development/h918-stock-deodex-debloat-t3499423
Click to expand...
Click to collapse
I flashed it via TWRP and that didn't work. I also tried another stock boot and system .img but that didn't work either. Please help!

ScottFlysPlanes said:
I flashed it via TWRP and that didn't work. I also tried another stock boot and system .img but that didn't work either. Please help!
Click to expand...
Click to collapse
I'm stuck In the same situation idk what to do I've tried everything I'm getting hopeless. have you resolved your issue yet?

ricosuave88 said:
I'm stuck In the same situation idk what to do I've tried everything I'm getting hopeless. have you resolved your issue yet?
Click to expand...
Click to collapse
I FIXED IT! I am making a thread later on how I did it!

Fixed this by restoring stock recovery.img.
Of course I lost TWRP and root, but it's progress.

http://forum.xda-developers.com/v20/how-to/how-fixed-bricked-lg-v20-t3501310

Related

What did I do wrong? Trying to Install CM11

I rooted my phone installed twrp via autorec--> http://forum.xda-developers.com/showthread.php?t=2715496 . Then I backed up my phone through twrp and then I rebooted and put the newest cm11 stable build --> http://download.cyanogenmod.org/?type=snapshot&device=vs980 on my phone. (I put it in the download file of my phone if that makes any difference), then I went to twrp and wiped everything but internal storage and proceeded to flash cm11 which i found in my download file where I put it (it was a zipped file) and I flashed it, then it went into a boot loop! Currently installing the recovery in twrp that I just made. I do not know what I did wrong could someone please enlighten me? This is the first time doing this sorry if its a noob question.
Thanks.
FYI the recovery worked my phone booted up fine. Also it is a VS980. I do have the verizon variant.
UPDATE:
Tried flashing again, this time with gapps as well (forgot to the first time) same results, flashing the recovery again rn. I AM CLUELESS!!!!
bobberserker said:
FYI the recovery worked my phone booted up fine. Also it is a VS980. I do have the verizon variant.
UPDATE:
Tried flashing again, this time with gapps as well (forgot to the first time) same results, flashing the recovery again rn. I AM CLUELESS!!!!
Click to expand...
Click to collapse
Would uninstalling autorec do anything?
flash the latest recovery from here. Then afterwards check if you have the right version for your variant and check the md5
Krenol said:
flash the latest recovery from here. Then afterwards check if you have the right version for your variant and check the md5
Click to expand...
Click to collapse
Again this is my first time getting this far so here are some noob questions: Would I just flash the zipped folder in twrp? Would I need to wipe anything? Would I need to create another recovery? Would it delete my old recovery?
Thanks.
EDIT:
Also why would updating twrp make such a big difference?
Just Flash the zip File for your variant then Reboot the recovery and go to settings and hit restore default. Don't wipe anything for changing the recovery. And this will just update the rec nothing else

Soft bricked Zenfone 3 still have TWRP

I have a Zenfone 3 that while trying to unroot I have soft bricked. I can get into TWRP recovery, but after installing the tizen ROM, I can not boot into it, but can still access the TWRP recovery. Is there a toolkit or any suggestion you might have as to how I could fix this issue.
Canukboy said:
I have a Zenfone 3 that while trying to unroot I have soft bricked. I can get into TWRP recovery, but after installing the tizen ROM, I can not boot into it, but can still access the TWRP recovery. Is there a toolkit or any suggestion you might have as to how I could fix this issue.
Click to expand...
Click to collapse
Do you have an official recovery? If yes, you can recover back your device again. Just use 'adb sideload <filename>' to do this.
I've also trying to unroot my device and end up in boot logo, but after flash the official ROM, it's finally work again. Also my data (/data) isn't formatted.
android_101_ said:
Do you have an official recovery? If yes, you can recover back your device again. Just use 'adb sideload <filename>' to do this.
I've also trying to unroot my device and end up in boot logo, but after flash the official ROM, it's finally work again. Also my data (/data) isn't formatted.
Click to expand...
Click to collapse
I only have the Twrp recovery.
Canukboy said:
I only have the Twrp recovery.
Click to expand...
Click to collapse
TWRP supports adb sideload but there's no point flashing stock recovery, TWRP is superior in every way.
Go into TWRP, plug in your USB cable and it'll mount your sdcard . Copy the firmware onto the sdcard and install it. Perform a wipe cache/dalvik and reboot.
How are you removing root?
wang1chung said:
TWRP supports adb sideload but there's no point flashing stock recovery, TWRP is superior in every way.
Go into TWRP, plug in your USB cable and it'll mount your sdcard . Copy the firmware onto the sdcard and install it. Perform a wipe cache/dalvik and reboot.
How are you removing root?
Click to expand...
Click to collapse
I used a app called KingRoot while I was on the bus, it caused the phone to freeze, after about 10 mins I hard reset the phone and it has not worked since.
I tried to sideload the stock rom, but it will not accept it. I think I may have something to do with the bootloader. I think my TWRP recovery could be in the Android partition, but I am unsure.
Canukboy said:
I used a app called KingRoot while I was on the bus, it caused the phone to freeze, after about 10 mins I hard reset the phone and it has not worked since.
I tried to sideload the stock rom, but it will not accept it. I think I may have something to do with the bootloader. I think my TWRP recovery could be in the Android partition, but I am unsure.
Click to expand...
Click to collapse
Forget sideloading it, edit the update script in the firmware, see this
thread, part 1, step 2-4.
Then copy the firmware to your sdcard (like I mentioned above) and install it. You can use the guide here, tip #4. You should read the entire guide afterwards.
if TWRP loads when you select recovery, it's on the correct partition. You'll have to reinstall TWRP after you flash the stock Rom again as it'll update recovery as well. Then create an nandroid backup, tip #2 and you're set.
Forget sideloading it, edit the update script in the firmware, see this
thread, part 1, step 2-4.
Then copy the firmware to your sdcard (like I mentioned above) and install it. You can use the guide here, tip #4. You should read the entire guide afterwards.
if TWRP loads when you select recovery, it's on the correct partition. You'll have to reinstall TWRP after you flash the stock Rom again as it'll update recovery as well. Then create an nandroid backup, tip #2 and you're set.
Click to expand...
Click to collapse
Hy Wang.. I followed your guide - modified updater-script, but I can't install the stock rom .zip from TWRP.
It says "can't extract updater-binary", I tried few times thinking that the file is corrupt, but the result still same.
FYI, I use stock ROM "UL-ASUS_Z012D-WW-14.2020.1709.68-user.zip", and TWRP 3.1.1.
Please help me if you have experienced it before. Thanks
@rzahunn
I've never had that error before and you're on the latest version of TWRP so I'm going to guess it has to do with your modification of the updater script.
You edited updater-script not updater-binary, correct? There are two files with similar names
There's a detailed guide by @kyle_l88 on how to return to stock.
Here's the link: https://forum.xda-developers.com/zenfone-3/development/how-to-to-stock-rom-recovery-zenfone-3-t3666223
Do note that the original recovery link is dead. The updated link is: https://mega.nz/#F!LIhwiCia!b_pyuHXS9E7f2VbyXcLyXA
TWRP Bootloop
Sorry if my reply is irrelevant, but I need some helps.
I am also using Zenfone 3, but stuck in TWRP bootloop.
I cannot flash using fastboot (not detected on PC), reflashing ROM doesn't help either.
I've tried all the possible methods I found on Google, such as dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota method but still has no luck.
Restoring backup would end me in TWRP too.
@Xytce
Are you factory resetting after you flash? Clearing cache and dalvik? It will take 5-10min to boot up initially after that.
Otherwise, try the guide Rizzed referenced.....as long as you have the correct firmware and TWRP flashes successfully, there's no reason it shouldn't work that I can think of.
wang1chung said:
@Xytce
Are you factory resetting after you flash? Clearing cache and dalvik? It will take 5-10min to boot up initially after that.
Otherwise, try the guide Rizzed referenced.....as long as you have the correct firmware and TWRP flashes successfully, there's no reason it shouldn't work that I can think of.
Click to expand...
Click to collapse
I've managed to fix the bootloop after following the guide. I missed that somehow, thanks for pointing that to me.
I've thanked you (pressed the Thanks button).
dm verity
Canukboy said:
I have a Zenfone 3 that while trying to unroot I have soft bricked. I can get into TWRP recovery, but after installing the tizen ROM, I can not boot into it, but can still access the TWRP recovery. Is there a toolkit or any suggestion you might have as to how I could fix this issue.
Click to expand...
Click to collapse
does it hangs on logo then start again? then reflashing the rom then flashing the dm verity zip again hope it works

Bricked but still have twrp

Hey guys,
so I tried flashing Omni 8.0 rom and I was stuck at the boot screen. so I went back into twrp tried to reflash still nothing. I flashed a new version of twrp the one that can use multirom and it erased all my data. I flashed back the twrp I started with and now I can not sideload the full OTA zip to get back to stock. It says "cannot load one.zip" which is what I have it labeled as. I tried to download the recovery tool and I can't seem to figure out how to get the driver to work so it will see me on my comm port. Does anyone have any ideas on what to do or what happened? I'm stuck in twrp.
almost looks like it can't mount the system
IDK, maybe a broken download. I'd try to restore a backup if you have one, if not Wipe > Factory Reset. If it still doesn't boot after 20 minutes, refer to this thread: https://forums.oneplus.net/threads/i-have-to-go-back-to-oxygen-os.649947/#post-16907420. Basically, download the OOS ROM onto your computer and use an ADB/USB Sideload in TWRP recovery (you can flash Oxygen Recovery from TWRP if TWRP doesn't work) to install it. May take a while to boot.
I have no idea how it happened but I got my system mounted again that was my problem. I'm back.
thread can be closed
keeganjk said:
IDK, maybe a broken download. I'd try to restore a backup if you have one, if not Wipe > Factory Reset. If it still doesn't boot after 20 minutes, refer to this thread: https://forums.oneplus.net/threads/i-have-to-go-back-to-oxygen-os.649947/#post-16907420. Basically, download the OOS ROM onto your computer and use an ADB/USB Sideload in TWRP recovery (you can flash Oxygen Recovery from TWRP if TWRP doesn't work) to install it. May take a while to boot.
Click to expand...
Click to collapse
thanks for the reply mate
snipeez1987 said:
thanks for the reply mate
Click to expand...
Click to collapse
yw
snipeez1987 said:
Hey guys,
so I tried flashing Omni 8.0 rom and I was stuck at the boot screen. so I went back into twrp tried to reflash still nothing. I flashed a new version of twrp the one that can use multirom and it erased all my data. I flashed back the twrp I started with and now I can not sideload the full OTA zip to get back to stock. It says "cannot load one.zip" which is what I have it labeled as. I tried to download the recovery tool and I can't seem to figure out how to get the driver to work so it will see me on my comm port. Does anyone have any ideas on what to do or what happened? I'm stuck in twrp.
Click to expand...
Click to collapse
Easy fix for "Cannot load xxx.rom": you have to patch the adb.exe with a large address awareness program. Google it, I found one in another XDA thread.
Reason: the ROM filesize is too large. For small ROMs (like custom ROMs) adb would recognise it without any problems.
ipredatorv said:
Easy fix for "Cannot load xxx.rom": you have to patch the adb.exe with a large address awareness program. Google it, I found one in another XDA thread.
Reason: the ROM filesize is too large. For small ROMs (like custom ROMs) adb would recognise it without any problems.
Click to expand...
Click to collapse
Awesome. I'll keep that in mind. I'm sure I'll mess it up again lol. Hopefully not though.

HELP! SM -G901F, TWRP can't find storage partition to mount

Guys this is help less.
After rooting my device I followed some instructions to get the Lineage 14. I flashed a BootLoader and a Modem as instructed and went forth to mount USB in order to transfer the custom rom into the device. But this is where the problem is.
It says E: Cant find partition to mount storage. I've tried to reboot, wide, data, storage, system and cache and repair the partition I don't know what else to do.
Anyone else can help? Btw I am fairly new to this stuff so please dumb it down for me.
Another thing, when I go to reboot my recovery it says my device isn't rooted and asks to install superSu, however it was rooted before I entered download mode and started installing bootloader and modem.
Now I have no operating system in the device so i can literally only use Recovery or download mode.
Is my device bricked? I don't know. :crying: :crying:
Pobi123 said:
Guys this is help less.
After rooting my device I followed some instructions to get the Lineage 14. I flashed a BootLoader and a Modem as instructed and went forth to mount USB in order to transfer the custom rom into the device. But this is where the problem is.
It says E: Cant find partition to mount storage. I've tried to reboot, wide, data, storage, system and cache and repair the partition I don't know what else to do.
Anyone else can help? Btw I am fairly new to this stuff so please dumb it down for me.
Another thing, when I go to reboot my recovery it says my device isn't rooted and asks to install superSu, however it was rooted before I entered download mode and started installing bootloader and modem.
Now I have no operating system in the device so i can literally only use Recovery or download mode.
Is my device bricked? I don't know. :crying: :crying:
Click to expand...
Click to collapse
If you can boot recovery, all is not lost.
First, are you sure that you flashed the correct bootloader/modem for your s5 model (G900 T, P, V, F, etc? Odin should not let you flash the wrong one, but anything is possible.
If Bl/modem is correct, them the next thing is to get the custom rom onto the phone.
-make sure you have downloaded everything you need (rom, root method(pref Magisk), gapps if wanted)
- boot into recovery, I'm recommending and assuming that you are using the latest Twrp, if not, d/l official Twrp for your model, and flash that with Odin
-In twrp select wipe, format data, just in case.
-now you should be able to mount usb storage, using the option in twrp
- now you should be able to mount your phone to your PC and transfer the rom, put it somewhere easy to find on the phone. also copy gapps and Magisk zips
-now, still in twrp, select install, select rom zip, select add more, select Magisk zip, also flash gapps at this time if you want to use them.
-click the button to flash
-click wipe cache/dalvik
-click reboot
-pray ?
BlueCyclone said:
If you can boot recovery, all is not lost.
First, are you sure that you flashed the correct bootloader/modem for your s5 model (G900 T, P, V, F, etc? Odin should not let you flash the wrong one, but anything is possible.
If Bl/modem is correct, them the next thing is to get the custom rom onto the phone.
-make sure you have downloaded everything you need (rom, root method(pref Magisk), gapps if wanted)
- boot into recovery, I'm recommending and assuming that you are using the latest Twrp, if not, d/l official Twrp for your model, and flash that with Odin
-In twrp select wipe, format data, just in case.
-now you should be able to mount usb storage, using the option in twrp
- now you should be able to mount your phone to your PC and transfer the rom, put it somewhere easy to find on the phone. also copy gapps and Magisk zips
-now, still in twrp, select install, select rom zip, select add more, select Magisk zip, also flash gapps at this time if you want to use them.
-click the button to flash
-click wipe cache/dalvik
-click reboot
-pray ?
Click to expand...
Click to collapse
Hey man! Thank you so much for your reply. I installed CPE1 bootloader and modem driver, honestly I don't even know what they do. Was this a wrong thing to do?
I rooted my device using cf auto root, then flashed the bootloader and modem using Odin. After that I (stupidly) tried to boot my stock OS and it was stuck in a bootloop.
Unfortunately I won't be able to try your instructions this till tomorrow evening but I'll keep you posted!! do you mind if I pm?
Edit: I was using twrp 2.8.7 I believe, could this have been the problem? Also I updated twrp to latest and tried micro sd as storage and flashed a Rom but the phone is still bootlooping
Pobi123 said:
Hey man! Thank you so much for your reply. I installed CPE1 bootloader and modem driver, honestly I don't even know what they do. Was this a wrong thing to do?
I rooted my device using cf auto root, then flashed the bootloader and modem using Odin. After that I (stupidly) tried to boot my stock OS and it was stuck in a bootloop.
Unfortunately I won't be able to try your instructions this till tomorrow evening but I'll keep you posted!! do you mind if I pm?
Edit: I was using twrp 2.8.7 I believe, could this have been the problem? Also I updated twrp to latest and tried micro sd as storage and flashed a Rom but the phone is still bootlooping
Click to expand...
Click to collapse
Ok I see you have S5 plus. I'm not familiar with that device to know which baseband it should be.
One thing you might try is to boot recovery and clear cache/dalvik and then try booting the custom rom.
If all else fails, you might try Samfirm
https://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647
That should give you a stock firmware file to flash with odin.
You can pm if you need to, I don't own an S5+, nor am I a veteran flasher but I will try to help if I can.
BlueCyclone said:
Ok I see you have S5 plus. I'm not familiar with that device to know which baseband it should be.
One thing you might try is to boot recovery and clear cache/dalvik and then try booting the custom rom.
If all else fails, you might try Samfirm
https://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647
That should give you a stock firmware file to flash with odin.
You can pm if you need to, I don't own an S5+, nor am I a veteran flasher but I will try to help if I can.
Click to expand...
Click to collapse
Ive tried the suggestion you gave me, no success. However I honestly dont know if it could be my fault. I'm gonna flash the stock firmware and restart the whole root process.
Thanks for your help man!
Pobi123 said:
Ive tried the suggestion you gave me, no success. However I honestly dont know if it could be my fault. I'm gonna flash the stock firmware and restart the whole root process.
Thanks for your help man!
Click to expand...
Click to collapse
Ok sorry I couldn't be more help
Oh, you don't need to use of cfautoroot anymore, you can just flash Magisk after the rom, and then use Magisk manager to manage all your root permissions.
So if you are going back to stock, I would:
-Flash stock in Odin
-probably boot stock once to verify (first boot takes long)
-odin flash latest twrp(uncheck auto-reboot, just battery pull after it says pass)
-power on phone with key combo to boot recovery
- format data
-flash rom/gapps?/Magisk
-wipe cache/dalvik
-reboot system (first boot will take long)
Hope you get your phone working again
BlueCyclone said:
Ok sorry I couldn't be more help
Oh, you don't need to use of cfautoroot anymore, you can just flash Magisk after the rom, and then use Magisk manager to manage all your root permissions.
So if you are going back to stock, I would:
-Flash stock in Odin
-probably boot stock once to verify (first boot takes long)
-odin flash latest twrp(uncheck auto-reboot, just battery pull after it says pass)
-power on phone with key combo to boot recovery
- format data
-flash rom/gapps?/Magisk
-wipe cache/dalvik
-reboot system (first boot will take long)
Hope you get your phone working again
Click to expand...
Click to collapse
Good News! Phone is back in full working order after flashing stock firmware. It was kinda scary though, I had to fix an error in Odin and then the phone wouldn't even boot up! Left it over night, booted it again and it worked fine Thanks a lot for your help, I'll try not to soft brick my device again

Phone stuck at Decryption unsuccessful :crying:

I am stuck at encryption failed when I flash stock oreo rom. I tried formatting data using twrp and flashed no encryption file as well but nothing works.:crying::crying::crying:
I just want to use the stock oreo rom again with root.
Pls help:crying:
Which ROM did you try and flash / install?
Try upgrading your TWRP to the latest version too.
jl10101 said:
Which ROM did you try and flash / install?
Try upgrading your TWRP to the latest version too.
Click to expand...
Click to collapse
I used partition dl mode to flash the stock oreo rom over 7.0 to keep the root. Then i flashed custom kernal for stock 8.0 but it didnt work. I have done the same procedure before and it has worked like a charm. But it keeps on giving the encrytion error when i try it now
Deadmeat03 said:
I used partition dl mode to flash the stock oreo rom over 7.0 to keep the root. Then i flashed custom kernal for stock 8.0 but it didnt work. I have done the same procedure before and it has worked like a charm. But it keeps on giving the encrytion error when i try it now
Click to expand...
Click to collapse
Odd. If I had to guess anything, it would be that not all the partitions were flashed when going from Nougat to Oreo.
I once flash a Nougat ROM from an Oreo ROM and I had the same encryption issue and lost everything.
That was the last time I would trust myself again and not do a backup.
Flash stock recovery from KDZ through patched LGUP & do a factory reset .
After stock recovery completes the wipe do a battery pull, flash TWRP via fastboot, format data, flash Kernel & Magisk & you should be back on track...
Prowler_gr said:
Flash stock recovery from KDZ through patched LGUP & do a factory reset .
After stock recovery completes the wipe do a battery pull, flash TWRP via fastboot, format data, flash Kernel & Magisk & you should be back on track...
Click to expand...
Click to collapse
I tried that as well. With stock recovery is says data is corrupted and doesn't do anything. I think it might be a problem with patched lg up because when i use normal lg up to flash oreo it works. But I cant root then.
I would try changing to 3.2.3-4 TWRP and then trying the procedure again. It seems that the 3.3.0 TWRP does not decrypt properly sometimes.
In the same boat as OP
scottyrick said:
I would try changing to 3.2.3-4 TWRP and then trying the procedure again. It seems that the 3.3.0 TWRP does not decrypt properly sometimes.
Click to expand...
Click to collapse
Hi
Looking for a way to keep TWRP and root ... any help appreciated
I've got a US996 with the same issue as the op. I have the latest TWRP 3.3.1-0. The phone was working fine until I upgraded twrp but I might have done a mistake resetting phone outside of twrp.
I can still get back into twrp but I haven't been able to install zip files without getting that decryption unsuccessful message when booting to system.
When getting back into TWRP using hardware buttons sometimes there is a prompt asking "keep system read only?" which I never chose and swipe to allow modification. I think this happens after
I pull the battery after getting the decryption unsuccessful message. There is a reset system that I could chose under the decryption unsuccessful message but I'm assuming that will make me lose twrp
...but if my phone is a us996 and is still
unlocked, would it matter if I did select it? Wouldn't I be able to reinstall twrp using adb again on a computer after Oreo is reinstalled?
To do Prowler_gr's suggestion which guide do I follow (sounds like I should do the second option)
"Flash stock recovery from KDZ through patched LGUP & do a factory reset .
After stock recovery completes the wipe do a battery pull, flash TWRP via fastboot, format data, flash Kernel & Magisk & you should be back on track... "
1-[GUIDE][UNBRICK] Patch LGUP to unlock features & unbrick V20 (Variant mismatch fix) to use lgup
or this guide
2-Ultimate guide to unbrick LG V20(Only Variants with .KDZ)[No OS Firmware Update Loop]
Thank you for any guidance on this...
There is a reset system that I could chose under the decryption unsuccessful message but I'm assuming that will make me lose twrp
Click to expand...
Click to collapse
Don't blame me if this goes wrong but I'm pretty much 100% certain that you mush press the rest button. This has happened to me a few times I'm sure. You won't loose twrp. Whatever resetting goes on in the background I don't think it's an actual Factory Reset.
Edit: Just to be clear you taking about a white screen with I think in dark blue or black text ENCRYPTION UNSUCCESSFUL and something like "reset phone" option directly under it, on the upper half of the screen?
Hi ezzony
Yes you are thinking of the right decryption unsuccessful page. I get it when booting to system
after installing Oreo and magisk 19 and having wiped everything (format data too). I will get the exact wording of it tonight
Thanks!
downgrade twrp i has same prob twrp 3.3.1 gives issues
ghet2rockuu said:
downgrade twrp i has same prob twrp 3.3.1 gives issues
Click to expand...
Click to collapse
Hi ghet2rockuu
I downgraded twrp and that got it working Thank You! see also Phoenix591 thread [Recovery][Unofficial for the moment]TWRP 3.3.1-0 : 2019-05-17 #625
Thank You !

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