Rooted forgot pattern lock - LG V20 Questions & Answers

My wife forgot her pattern lock, its a rooted verizon lg v20. Anyone know of a way to get around this problem without losing data?

https://forum.xda-developers.com/android/software-hacking/remove-lockscreen-recovery-t3530008 you could try this if you have twrp installed

Tried but no system data. everything I do it boots back to recovery. Anyone have any ideas? I tried flashing back but lg flash tool crashes everytime.

Related

[Q] hlp with weird post-encryption behavoir

So I'm running Cyanogenmod 11 on my Sprint Galaxy S4. I decided to encrypt, but after I did I soft bricked my device. So I wiped data and restored a pre-encryption backup and it was fine. I later just wanted to try a stock ROM out of curiosity, but when I installed it and rebooted it went to the screen where it asks you to input your password to decrypt. No combination worked, I even tried null or 0000 incase it went to some weird default. So I went back to cyanogenmod and it worked fine, I even updated it fine, but I still can't get other ROMs to work. So here is the bottom line, Cyanogenmod works great, but any other ROM does the weird encrypt thing, when I wrote data on different Roms it doesn't decrypt, does anyone know what is causing this or know how to fix it?
Have you tried using oden to install the stock tar?

Help - G935A stuck on AT&T Logo - 3 vibrtations

For a week my G935A worked fine... direct out of the box I flashed ENG Kernel and Rooted, then installed apps and configured - no issues.
Today it was working then it hung on wake.. I tried to reboot and now it gets stuck at the AT&T logo and vibrates 3 times - over and over
I can get to Odin and Recovery screens easily so I tried to flash the ENG Kernel again & deleting Cache Partition few times - didnt fix it.
Also tried booting into Safe Mode - it never gets there, stays at AT&T logo.
When I go into the Recovery menu, I see at the bottom, in red... "dm-verity verification failed"
Anyone know how I can recover from this without Factory Reset? It took 6 hours to reinstall and config all my apps - really want to avoid that.
thx for the help!
as far as I know there is no way to fix and save your stuff. I had the same problem with G930A and even doing a factory reset would only allow my phone to boot but then I get apps crashing and then a reboot puts you back at ATT logo and the vibrates. Best to ditch the whole engboot and go back to stock until a more stable rooting method comes out.
Some searches shows posts that say using Odin to flash HOME_CSC without having to wipe and everything survive
... Where can I get HOME_CSC? I dl'd stock rom and dont see it in there.
thx!
Same here this morning on my 930A w/ PK1....went to watch a youtube vid and everything google related began crashing.
Only been on engboot for a couple days but did flash the v15 debloat last night. hmmmm.
Any luck with the files or procedure LivinOne?
Update: Flashed the PK1 CSC and got into recovery.
Wiped cache and reboot, same failure mode....sad face.
Flashed CSC again, into recovery, factory reset, wiped cache.
Back to setting my "new" device up.
Dec 30 update: Same crash, SEMI same problem.
I get the single vibration followed by the 3 vibrations after I put my pin in from a restart.
Same symptoms prior, all background activities began crashing.
Running all PK1 files from QRhinehardt post.
Any thoughts?
I ended up wiping and flashing the T-Mobile firmware and using the ENG bootloader (but not rooted yet). It is WAY faster than the AT&T was. I've only had issues with Wifi Calling (it doesnt seem to work most of the time)
s7 at&t
Hi, did you first flash with eng bootloader and then tmobile rom? I miss this step...I appreciate your help please
Single vibration followed by the 3 vibrations
Hi, were you able to fix the problem? I'm also getting the single vibration followed by the 3 vibrations.
Do you know why is this occurring? I performed a wipe cache and factory reset but still nothing.
bweegn said:
Same here this morning on my 930A w/ PK1....went to watch a youtube vid and everything google related began crashing.
Only been on engboot for a couple days but did flash the v15 debloat last night. hmmmm.
Any luck with the files or procedure LivinOne?
Update: Flashed the PK1 CSC and got into recovery.
Wiped cache and reboot, same failure mode....sad face.
Flashed CSC again, into recovery, factory reset, wiped cache.
Back to setting my "new" device up.
Dec 30 update: Same crash, SEMI same problem.
I get the single vibration followed by the 3 vibrations after I put my pin in from a restart.
Same symptoms prior, all background activities began crashing.
Running all PK1 files from QRhinehardt post.
Any thoughts?
Click to expand...
Click to collapse

Can I flash stock recovery back?

Hi Guys,
Hoping someone can help and tell me that Ive not bricked my brand new S7 edge
I have experience in rooting / flashing a number of android devices so I was quite confident in what I was doing.
So I was trying to root my stock rom, I flashed TWRP using Odin which worked fine then I flashed the Super SU. When I booted it then asked for a PIN to boot, it definitely wasn't what I set and would have only set it to 1 thing. So I did some googling and found that I could clear data or remove the pin key files but in TWRP it couldnt mount data and I tried re-formatting but it sat there for over half an hour and I had to hard reboot. TWRP now just freezes at the splash screen during boot which confuses me cause even if I switched off during re-formatting, I was only on the userdata so surely that shouldnt affect TWRP? I then got to the stage where I thought entering the max PIN attempts would just wipe data but no it tried to boot into TWRP which is useless cause it doesnt get past the splash screen.
I can still get into Odin mode, is there something else I can try flash? I had tried reflashing TWRP before but it was still freezing at the splash screen
I thought of maybe wiping data over adb but I dont think I can do that unless the phone boots or gets fully into TWRP?
Any help much appreciated.
Thanks
Stewart

Black screen after factory reset

so... my phone suddenly wouldn't accept my password anymore to unlock. i tried a couple of things, like deleting the files lockscreen files using TWRP to bypass that... but then it got stuck in a "android is booting" screen and everytime i tried to change my PIN, it would crash.
So i went to TWRP and wanted to reflash my ROM (I was using Resurrection Remix), but then I couldn't decrypt the data because ... the password again wouldn't work. so I finally decided to use sideload to try to flash everything again and it works, but the problem is that even after the factory reset, the phone will boot up but there won't be any images. You can hear the jingle play when you first turn on any android phone... but it's all black.
edit: I've tried flashing two different roms: RR & Lineage OS, both will boot up, but same problem.
I haven't been able to back anything up because... well the OS wouldn't boot up and my TWRP was being wonky and I can't restore anything...
Anyone have any ideas of how to fix this? I feel like i could use the format data and start from scratch... and make it work but then I assume that would wipe my titanium backups, which I haven't been able to extract out. so if anyone has any guidance on how to do that, that would be great. I've tried to use adb to extract stuff out but it hasn't worked and now I can't even do it anymore because I don't have usb debugging on.
nova_vo1 said:
so... my phone suddenly wouldn't accept my password anymore to unlock. i tried a couple of things, like deleting the files lockscreen files using TWRP to bypass that... but then it got stuck in a "android is booting" screen and everytime i tried to change my PIN, it would crash.
So i went to TWRP and wanted to reflash my ROM (I was using Resurrection Remix), but then I couldn't decrypt the data because ... the password again wouldn't work. so I finally decided to use sideload to try to flash everything again and it works, but the problem is that even after the factory reset, the phone will boot up but there won't be any images. You can hear the jingle play when you first turn on any android phone... but it's all black.
edit: I've tried flashing two different roms: RR & Lineage OS, both will boot up, but same problem.
I haven't been able to back anything up because... well the OS wouldn't boot up and my TWRP was being wonky and I can't restore anything...
Anyone have any ideas of how to fix this? I feel like i could use the format data and start from scratch... and make it work but then I assume that would wipe my titanium backups, which I haven't been able to extract out. so if anyone has any guidance on how to do that, that would be great. I've tried to use adb to extract stuff out but it hasn't worked and now I can't even do it anymore because I don't have usb debugging on.
Click to expand...
Click to collapse
have you try to re-flash your TWRP? maybe re-flasing your TWRP will work, also maybe installing the original rom will work, and then you can try to flash whatever rom you desire
as i know doing a factory reset from the TWRP delete all of your files, i mean everything. so i don't think that you still have the backup files
Flash the Official recovery of the oneplus 5 and then install OOS by adb into thé recovery.

AT&T LG v20 (H910) boots to AT&T logo and hangs

Hello Anyone,
I have the LG v20 rooted for some time now with Android N and working good.
Two days ago, I removed some apps with titanium backup and i think one of them was a facebook installer apk, one was the visual voicemail apk and the other was something like tether provision apk. Then I placed the phone on a charge for a bit.
When I came back to the phone, it seemed to have rebooted but was stuck on the AT&T logo after the LG Logo. I did a battery pull and same thing. I removed the sim card, same thing happened. Since it was hot, I let it cool and then tried again, no difference.
I backed up the partitions and then did a wipe and reinstalled the rom, it works taking me to the homescreen. I then tried to reinstall the backup and it goes back to the AT&T logo and hangs.
Is there any way to figure out what file I deleted that is causing the hang and how to put it back with TWRP so I can start booting the phone properly again?
Thanks.
rodogg88 said:
Hello Anyone,
I have the LG v20 rooted for some time now with Android N and working good.
Two days ago, I removed some apps with titanium backup and i think one of them was a facebook installer apk, one was the visual voicemail apk and the other was something like tether provision apk. Then I placed the phone on a charge for a bit.
When I came back to the phone, it seemed to have rebooted but was stuck on the AT&T logo after the LG Logo. I did a battery pull and same thing. I removed the sim card, same thing happened. Since it was hot, I let it cool and then tried again, no difference.
I backed up the partitions and then did a wipe and reinstalled the rom, it works taking me to the homescreen. I then tried to reinstall the backup and it goes back to the AT&T logo and hangs.
Is there any way to figure out what file I deleted that is causing the hang and how to put it back with TWRP so I can start booting the phone properly again?
Thanks.
Click to expand...
Click to collapse
If you're rooted and have access to twrp just dirty flash your rom
Sent from my LG-H910 using XDA Labs
wouldnt that erase all of the user data?
rodogg88 said:
wouldnt that erase all of the user data?
Click to expand...
Click to collapse
No it won't just wipe system, davlik, and cache also don't forget to flash supersu or magisk right after you flash the rom before you boot to system
Sent from my LG-H910 using XDA Labs
ok, thanks. I ran into some trouble when i did that where my phone was asking for the passcode and eveytime i entered it, it came back as the wrong code. Then my phone rebooted into TWRP after the 10th attempt and then got stuck in a TWRP boot loop.
I got out of the twrp boot loop and reflashed the rom, then restored only my data file since my system file backup was not booting (original problem)
In case anyone else has this issue, if you have the TWRP recovery and your phone does a reboot into the recovery for factory reset, your phone will only reboot into TWRP unless you do a battery pull (or force shutdown) and then manually boot the phone into TWRP, then reboot into the system.

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