yashsingh1/xdaforums huggingface dataset:
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Rydah:
Sorry to hear. I attempted this but it didn't go through. I believe I did it right but idk. Anyways, I hate this phone and relocked my bootloader. Setting it back up. :///

Hope your phone gets back up and running
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] twistedvip:
Which phone variant do you have?

I was doing this with the AT&T variant for just some testing purposes and that is what I am currently getting as well.

Just to let you know, this process won't work for the AT&T variant since we are unable to unlock our bootloader.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] pro_granade:
Sprint. I heard him say something about testing for other variants, so that's what I'm doing. But they legit removed fastboot mode on this device.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] AddisonSparks:
Hey I'm just finishing up this process with my G5 H830 (T-Mobile).. hopefully this helps someone.

Important: when I downgraded from Android 8 to 7, the phone was forced into factory reset. Definitely make a backup of anything you don't want to be erased.

The phone was left to me by my dad and was on android 8. I found a code somewhere (I'll paste below) that allowed me to check the anti-rollback version of the phone and it was 1. Depending on your carrier, I believe there are different codes you input using the dial pad to reveal the anti-rollback "ARB" version. I would double check the firmware you're downloading matches, but from what I've seen, android 8 and 7 both ship as ARB 1. The way it works is the number can go forwards but not backwards. ARB 1 system can flash ARB 2, but then once you have 2, you can't go back to 1. This code is supposed to be for both AT&T and T-mobile: *#*#244773825625#*#* it worked for me. I was able to find the H83020a android 7 KDZ and flash it with LGUP. Still took me hours of work after that and switching between windows 10 and linux mint to root from there, but android 7 took easily. LGUP is only windows. but the ADB commands for dirty cow would not complete for me in windows. It would always hang on "adb logcat -s recowvery". I decided to try the dirty cow commands using linux mint with the ADB 1.0.39 (I believe current) and everything worked as stated in the post. The only difference in command for linux (which to me was actually easier) is that you only "cd" into the dirty cow folder and adb runs from the base terminal.

This was the only tutorial that worked for me and even at that it didn't work on the first PC I was trying it on.

The phone was on android 8, and now it's android 7 nougat with TWRP on the screen.

UPDATE:

I flashed Lineage through TWRP without wiping the phone, and Lineage used some sort of encryption. I would power on the device, and when Lineage loads, it asks for a password. There is no password. I had a lot of trouble getting back to TWRP recovery because of LG's extremely limited recovery handling system. You can't just hold down buttons during power on to get to the proper recovery menu. Once I figured out the button combo, (power + volume down, release power, hold power again), I was able to get to the LG menu to choose the option to factory wipe the phone. That sent me back to TWRP, and there I did an advanced wipe before trying Lineage a second time. After doing a complete wipe and format of the internal storage and then loading the Lineage zip back onto the phone, I was able to flash it again as normal through TWRP and the OS runs as it should. Clean and smooth. I still don't know what encryption was carried over, as I just did a factory reset to downgrade to the 20a nougat firmware, but Lineage seems to need the advanced wipe option in TWRP that formats the internal storage and erases any encryption. At least in my case, it was neccesary. Luckily, you can access internal storage via USB with TWRP running so you can copy off any important files before wiping.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Azukegi:
On my H830 my bootloader is unlocked but I had to flash back to 7.0 stock from custom os due to fastboot brick. Ricks recovery and easyrecowvery is not working. How do I get TWRP back onto the device?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] AddisonSparks:
You gotta go back through basically the whole process and run the recowvery commands through ADB. It sucks, but I would start back at page 1 of this thread with where you're at. I had a lot of trouble running recowvery, but basically you want to use only official Google ADB and Fastboot. If you're having issues, try another PC. That's what made the difference for me. The step where it looks like the phone is freezing really tripped me up a few times too. It went to the T-Mobile startup screen, and I kept thinking the process failed. For my phone at least though, that's how it looked when the process was successful. Feel free to reply with any other questions but you basically want to follow everything from page 1 and skip whatever is N/A like your bootloader is already unlocked. Best of luck!
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Azukegi:
When I get to

dirtycow /system/bin/app_process64 recowvery-app_process64

"<wait for completion your phone will look like it's crashing>"

it goes into a boot loop on the T-Mobile startup screen
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] AddisonSparks:
Yeah it's supposed to look like that. that step confused me too. It looks like it's booting, but it isn't. While it shows the T-Mobile startup screen you then go ahead and proceed to the next command, exit the shell and run the "adb logcat -s recowvery" to see if it was successful. That step was difficult for me too
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] AddisonSparks:
That is the most difficult step. If you don't get success with "adb logcat -s recowvery", then I would try either a different PC, or a different version of ADB if you can find one. It didn't seem to work for me on Windows using the recommended ADB that I downloaded, but it did work on Linux Mint with the version available in their app store
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Azukegi:
I agree this is the most difficult step 😂. I had to install Linux Mint than complete the rest of the script. If it wasn't for your quick reply I would been stuck here a lot longer. Thank you
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Graf_Eberstein:
I have a carrier-unlocked US996 variant of the LG V20 sold in the United States (where I also am). I upgraded from this phone in 2020 because the screen started to ghost really bad. It has been sitting in a drawer since, and as a result its battery went bad; not an issue in principle because I didn't need it. However, because I now need to use it, I went out and got a new battery for it. The phone is currently on Android 8 with Software version US99620F, in case it matters (yes, I do see some references to rolling back to Android 7 in the thread, but that's not why I'm stating all that).

My issue, and question, is this: LG has shut off the portal where LG phone owners can go to download the file that will unlock the boot loader. Does anyone know of another way for getting the unlock file? I have done my due diligence searching Google in this respect and come up empty.

I have seen is references to a "Dirty Santa/Dirty Elf" procedure and researched this approach. However, unless I'm missing something, I've hit a brick wall with that as well: One method includes the US996 in the title, but then goes on to rather explicitly say it will brick the US996. The other method lists the US996 in the title as well, but then reaches a step that uses Fastboot and hangs. Researching what to do when that hang happens only returns instructions for specific LG models and warns that it will brick any not listed therein.

Any direction here would be greatly appreciated. I suppose that if I need to stick with the stock LG Android 8, I'll have to do so. However, I would really like to try and run a newer Android release. It's not just that: My understanding is that the long-term fix that addresses the aforementioned ghosting cannot be applied under the stock Android 8; they require rooting, which (unless I'm missing something) requires unlocking the boot loader. Consequently, I'm stuck between a rock and a hard place.

ANY guidance would be greatly appreciated.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] xxseva44:
Just use a vs995 dirtysanta guide, the one from Lazerwolf is pretty good.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] mike666:
Hello,

After five years of successfully using rooted Tmobile v20 it turned into a bootloop on bootloader.

Power button+vol down do not bring phone into recovery menu

Please help with any advice
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] xxDUFFYxxx:
Hi, I just bought a LG V20 X US996.

I haven't put a sim card in yet .This was bought to root and run Kali Linux.

I dunno where to dl the badsanta or is this done on a cpu ?

Get Twrp and follow the guide.

Is no sim going to be an issue?

I live in the most expensive cellphone country in the world and it would require showing ID even for prepaid.

To my knowledge there isnt a way to get a sim in Canada without signing up.

Any help would be appreciated.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] dextructor:
Unless you are using a Google Pixel, almost any other version of Android will be modified one way or another. Some more like Samsung, LG, Xiaomi, others less like Motorola. So just relax and use what's you have.

I seriously doubt that you can't enable the developer mode or that you have a problem with your phone. So let's "fix it".

To enable the developer mode watch this video, that explains very well how to do.

If you wanna unlock this other video has sufficient instructions beside all the threads here on XDA forums so you can do it.

I'm sure that with all this information and some patience, you'll succeed.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] xxDUFFYxxx:
I thought I had editted that post. Im in dev mode by finding the correct place in settings that was in an odd spot and found the build #

Thanks for the quick reply. Next step follow the guide and hope the links work.

Thanks again for the reply.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] dextructor:
The AIO download on the thread it's working, but if you have a problem I also made a package that I used for my H990DS, I don´t think that the essential files are different since both variants use DirtySanta method (I'dont guarantee since I tested only on my variant, so use if you can´t find the other files).

If I'm not mistaken you don´t have to use any sim since the process happen in the terminal.

Read carefully, download all the files, watch the video, take notes and separate your time to do, and all I'll be fine.

Yes I heard the prices for the mobile carriers are really high, but the price for phones aren´t that bad, and the second hand market it's much more reasonable than my country that an broken V20 it's announced for more than CA$100
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] xxDUFFYxxx:
72 CAD w shipping of ebay.

The shipping was $20.

Ok I will have to find time to do this , read and watch the tutorial then attempt.

Thanks
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Kief_haring:
Weird trying to get past the crash screen right? It's not really clear on what the next step should be.... reboot the phone, battery pull, or just continue with the coding.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] twistedvip:
When you say removed fastboot mode, does it just do a simple restart like the AT&T variant does? Because if so, then the AT&T variant must have the same issue.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] pro_granade:
Yeah. If I adb reboot fastboot/bootloader or whatever, I'm to tired to remember, it'll just boot normally, as does the option in recovery.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Kief_haring:
Which commands did you have to wait to finish?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] justthefacts:
I think its time for a new thread with a complete step by step instructions.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] trix4rix:
"$ ./dirtycow /system/bin/applypatch recowvery-applypatch

"<wait for completion>"

$ ./dirtycow /system/bin/app_process64 recowvery-app_process64

"<wait for completion, your phone will look like it's crashing>""

but even that didn't actually work. I spoke too soon about finishing it.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Kief_haring:
Really the only thing that is kind of unclear is the crash screen part.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] pro_granade:
What is completion, when the command finishes, or is it something you notice on the phone screen?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Kief_haring:
I've let that screen run for about 5 minutes now & it's still the same process... I'm really confused as to what is going on.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] trix4rix:
it goes back to a line that then has the "$" symbol and doesn't change even after 2 minutes. I still have issues though, just check the screenshot from earlier. I'm still getting that issue.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] thatisandwas:
Someone should grab a webcam and screen cap software and get crackin'...i'm gonna go through this process when i get home, hoping i don't run in to this issue at the crash screen i'm reading about
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] lightninbug:
Is this screen crash happening to T-Mobile users?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] bambam126:
Thank you :)
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Kief_haring:
Seems to be... I'm on T-mobile & can't past the crash screen deal... No clue what do to, the process has run it's course but the phone stays on that weird screen.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] thatisandwas:
ADB reboot doesn't work?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] pro_granade:
ADB works perfectly fine on the screen for me
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] lightninbug:
Thanks for the clarification, I will wait and see what the devs say to do.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] yugendreams:
Im hahaving the same issue. NeVer says complete just loops this. https://i.sli.mg/Ie0s1W.png

When I do ctrl+c ans go iinto recovery I get a dead android. The minute I figure this out I'm making a tutorial.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] zabracks:
I'm on a TMO V20, and I'm getting this from the logcat step:

--------- beginning of system
--------- beginning of main
--------- beginning of crash
10-31 15:07:52.086 7412 7412 I recowvery: Welcome to recowvery! (app_process64)
10-31 15:07:52.087 7412 7412 I recowvery: ------------
10-31 15:07:52.087 7412 7412 I recowvery: Current selinux context: u:r:zygote:s0
10-31 15:07:52.087 7412 7412 I recowvery: Set context to 'u:r:system_server:s0'
10-31 15:07:52.088 7412 7412 I recowvery: Current security context: u:r:system_server:s0
10-31 15:07:52.088 7412 7412 E recowvery: Current security context 'u:r:system_server:s0' does not match 'u:r:system_server:s0'!
10-31 15:07:52.091 7412 7412 E recowvery: Error 22: Invalid argument
10-31 15:07:52.091 7412 7412 E recowvery: Waiting 20 seconds for next try...

Looking at the code in recowvery-app_process64, I really don't see how it's getting into this state.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] tnick84:
Isn't the command "adb shell reboot recovery" ?
[Galaxy Note 3 Q&A, Help & Troubleshooting] mahmoodinho98:
1. Every time i try to install a kernel i get " kernel not seandroid enforcing " and a boot loop

2. Everytimw i reboot my system , i lose the downloaded keyboard

3. I cant also install any roms

Will reflashing the stock rom fix these problems

BOA1

Am currently on lolipop 5.0
[Galaxy Note 3 Q&A, Help & Troubleshooting] Patrikh_76:
Here you go. Everything you need ?

http://xdaforums.com/showthread.php?t=2609767

Skickat från min SM-N920C via Tapatalk
[Galaxy Note 3 Q&A, Help & Troubleshooting] Yumiko87:
So after flash the lollipop stock Rom is that any problem on it?
[OnePlus 2 General] anonymoys:
I had TWRP installed and all was good. Then I tried an OTA update. Update failed and now I can't get into recovery or fastboot. When I try it stops at the 1+ logo with Fastboot Mode written under the logo. This happens if I try Volum Up + power button or adb reboot-bootloader. Device is listed with ADB but won't show up for fastboot.

How do I get back to stock recovery and get the update installed?

Thanks!
[OnePlus 2 General] danstar7:
Is fastboot installed properly on your PC?

Drivers?

If not and you get it working, you can use fastboot to flash a new recovery. Otherwise read ahead.

Does your phone boot? Is it rooted?

If so, you can try to flash a new recovery via tools like FlashFire, Flashify, Rashr, etc.

If none of those work for you, you can try the un-bricking methods.

I've had my Oneplus 2 hardbrick 3 times on me so far. The solution was to put the phone into a Qualcomm QHUSB_BULK mode, installing unsigned drivers in Windows, and using Chinese software to push recovery files to your phone.

For my first two hard bricks (My phone wasn't responding to anything - it would just show up in the device manager when plugged into the PC). I was able to write the stock recovery and boot files onto my phone by using Method 1 from this OnePlus Forums thread: https://forums.oneplus.net/threads/...ck-guide-for-a-hard-bricked-oneplus-2.347607/.

I was then able to boot to recovery and dirty flash my OS without any data loss this way.

The last hard brick was much worse and required me to completely reinstall everything on my phone via one of the other methods (I used this link: http://xdaforums.com/oneplus-2/general/oneplus-solution-hard-bricked-device-t3183449 and ended up with H2OS, which I then replaced with OOS 3.1.0) - if it comes to that I would recommend checking out the other methods in the OnePlus Forum link below to hopefully avoid going through H2OS - but if not, this one worked.

Also, for updates: You'll need to to reflash (dirty flash) your rom first (this is to unroot/undo any modifications you made to the system, otherwise the OTA will fail) and then flash the OTA. You should be able to use TWRP for this.
[OnePlus 2 General] anonymoys:
Thanks for the reply. Got fastboot working on a different computer.

Phone boots just fine. Not rooted. Just can't access recovery mode or install updates :(

I tried loading stock recovery (as per this thread) with no change. Thinking I'll have to treat it like it's bricked. Would rather not have to wipe phone though, but doesn't look like I have much choice .
[OnePlus 2 General] CrazyArjun:
For the past two days I had faced the issue of connecting the device in fastboot mode. Mobile is working fine, loaded with latest firmware OTA updates from OnePlus.

I would like to install TWRP on my mobile but the device is getting detected in the fastboot mode. Tried various steps, reinstalled adb & fastboot as well as OnePlus drivers nothing works. However my mobile is being detected in the adb mode. If I run the command adb devices, it displays my mobile serial number but in fastboot it just sits at the waiting for the device screen.

After a lot of googling, xda search & Oneplus forums search, nothing found. Then I tried reinstalling the adb interface drivers manually, where I have noticed that Win10 installed the latest drivers adb drivers updated in the month of Sep16. Here I have selected the older version driver which was released in the year 2014 and installed it successfully. I run the fastboot devices command again Voila... It worked. no restart, no rebooting the phone. Immediately worked.

Lesson learnt : - Always do not use latest drivers, sometimes try the older drivers if something is not working in your phone.
[OnePlus 2 General] iharryghuman:
can you share those drivers,,facing same issue actually
[X Play Q&A, Help & Troubleshooting] ismatab:
Hi, guys. I need your help. What's the best ROM for our moto x play, with low consume of battery and stability. Don't matter if is stock or custom.

Thank you.
[X Play Q&A, Help & Troubleshooting] HerySean:
I think stock is the most stable ones, but if you look for more features, you should go for Resurrection Remix or Dirty Unicorn. I currently using RR, kinda stable enough for me
[X Play Q&A, Help & Troubleshooting] ismatab:
but in stock there aremany lags and battery life is short, what about battery in rr?
[X Play Q&A, Help & Troubleshooting] HerySean:
Pretty good actually, for me I get like 24 hours or more for daily usage, and for heavy usage I got about 10-12 hours. But's my usage, I don't know about you though. For heavy gaming like Final fantasy 9 I got about between 2-3 hours roughly.
[Android General] Liooh:
Why I can't see some youtube videos from my youtube mobile(Either app or browser) but I can see them on my Windows Laptop ?

Is there any way possible I can see them the same way I see them on my Windows Laptop ?
[Google Pixel XL Questions & Answers] CZ Eddie:
EDIT: SEE POST #8 FOR THE WORK-AROUND TO UNINSTALL SYSTEM APPS

Rooted last night and one of the first things I did was install TB so I could remove some of the system apps.

But while TB says they're removed (like Chrome & easter egg), I reboot and they're still there.

I did have latest BusyBox installed.

So I tried using TB's built-in BusyBox and had the same issue.

I also made sure to get /system_root Read/Write and still couldn't uninstall using TB.

Are we gonna have to wait for either SuperSU or TB to get an update with fixes.

Any suggestions on a way to get TB working? Other than manually removing apps via Root Explorer which I already know how to do and is not the point of this thread.
[Google Pixel XL Questions & Answers] DinarQ8:
try system remove app
[Google Pixel XL Questions & Answers] clockcycle:
Isn't current root system-less.?

Root is actually in system_root and system is not being mounted rw?

If its true you cant change anything in system until it can be switched to rw..
[Google Pixel XL Questions & Answers] CZ Eddie:
I've already set it to R/W using this command: mount -o rw,remount /system_root.

Didn't help. The apps are still there after rebooting.

An odd thing I noticed. Titanium is showing "Android System Webview" and "Device setup 7.1" as frozen. And I didn't do it. Anyone else noticing this?
[Google Pixel XL Questions & Answers] CZ Eddie:
Just tried it. Doesn't work either.

Thanks for helping me rule out Titanium Backup specifically though.

Definitely something to do with Google's partition setup (or with root) then.
[Google Pixel XL Questions & Answers] CZ Eddie:
No big deal, I'll just use Root Explorer to remove the ~35 system apk's I'm trying to get rid of.

I just feel safer seeing

app names

rather than guessing at

apk names

when I'm removing stuff.

Plus, TB is just faster & more convenient. And I'm probably going to have to do this a few times over the next few weeks as I make & break my phone.

Btw, I'm a little disappointed there are a bunch of Verizon apps on my Google purchased phone.
[Google Pixel XL Questions & Answers] jjayzx:
DM-Verity, I think it is, is still active with this root. Think that's what your running into.