yashsingh1/xdaforums huggingface dataset:
[LG V20 Guides, News, & Discussion] Manbot27:
[MENTION]@me2151[/MENTION] I have a question, searched the thread and didn't find an answer. I saw in two rom threads that the H910(AT&T version) cannot have wifi calling or hd(volte) calling because the bootloader unlock specifies the phone as a us996. Is there any way for me to change that or att version being changed by you in the future?

Just bought the phone and would love to root it but I can't due to needing wifi calling for certain areas, may return the phone if I could never root it but holding out hope that maybe a change will come in the future.
[LG V20 Guides, News, & Discussion] me2151:
Wifi calling works fine on stock kernel? Sprint wifi calling works fine(thats what i have)
[LG V20 Guides, News, & Discussion] Manbot27:
I wasn't aware it worked on the stock kernel. I'll try that out then.
[LG V20 Guides, News, & Discussion] me2151:
Yup. All the main bugs like youtube, fm radio and wifi calling were caused by the debug kernel.
[LG V20 Guides, News, & Discussion] TheIronMaiden:
in case anyone wasn't aware, I have found the button combination to get into recovery mode

1. Start by turning off your phone.

2. Don’t reboot it – just press on the Power key and select “power off” or press and hold the Power key for a few moments.

3. Wait while the shut down process is completed.

4. Then, press and hold (at the same time and for a few moments) the Volume Down and Power buttons.

5. When the LG Logo is displayed, release the Power Key but keep pressing the Volume Down button; while doing so press only once the Power button.

6. Release all the keys as soon as the recovery mode menu is displayed on your LG V20.

I have tested this, it works every time
[LG V20 Guides, News, & Discussion] midmadn:
What happens if you do a factory reset in twrp? I've done it several times. Got stuck in a never ending recovery bootloop. Only way to get out of it was restoring a backup in twrp. Thankfully I had a backup that worked.
[LG V20 Guides, News, & Discussion] me2151:
If you do a factory reset you get stuck in a never ending recovery loop :/
[LG V20 Guides, News, & Discussion] rjc2233:
First of all i want to preface this by saying that i never should have messed with stuff that i dont understand. Tthat being said, i somehow forgot to put supersu on my sd card. Is there a way to put it on the phone otherwise? And also is that the reason that i cant get past the att screen? And i did read. I saw some people said it needs a rom but then i also read that only the sprint version needs an extra rom. Please someone help an ignorant noob that ventured where he shouldnt have

Edit: so i figured out how to sideload supersu. and im still stuck on the att logo. Do i just download a rom and sideload it the same way through adb and twrp?
[LG V20 Guides, News, & Discussion] fix-this!:
is there a way to remove the weird static triangle screen yet? i flashed resurrection remix and still have it on boot.
[LG V20 Guides, News, & Discussion] elijah420:
NO. Read. Read. Read. Read. Read.

---------- Post added at 12:40 AM ---------- Previous post was at 12:35 AM ----------

Take SD card out of phone. Put it in adapter that comes with the SD card. Transfer files to said card. Put card back in phone. Connect phone to PC.

Boot into fastboot.

Flash TWRP image to phone.

Fastboot reboot recovery.

Flash ROM.

Should be done.

Buuuuut.. was your device successfully rooted to begin with?
[LG V20 Guides, News, & Discussion] rjc2233:
I thought it was......but now i doubt myself. Can i just go through the steps again like its the first time?
[LG V20 Guides, News, & Discussion] fix-this!:
i dont think im gonna read over 200 pages but thanks.
[LG V20 Guides, News, & Discussion] supreme329:
Search and read people. Almost every issue has been resolved. Unless your phone grew legs and walked away. In that case, you need an exorcist.
[LG V20 Guides, News, & Discussion] rjc2233:
ok. i got a rom on my sd card. Made sure it worked for my phone. Flashed it. and when it rebooted it has the static with the horizontal bars. I have read and seen others with this, but i dont remember seeing it at this step
[LG V20 Guides, News, & Discussion] me2151:
First page.... Second post.....
[LG V20 Guides, News, & Discussion] fix-this!:
okay so I searched but what is the solution for seeing a static type screen during boot? I can kind of make out the red triangle but it's all blurry until the device boots. this happens when booting to twrp or regular reboot. is there a fix for this? I'm on the at&t variant.
[LG V20 Guides, News, & Discussion] Chaz187:
Read read read! It has been answered many times!
[LG V20 Guides, News, & Discussion] rjc2233:
ok. ive flashed supersu, a rom, and the kernel. I am getting the static screen (which i expected). The problem is that i cant get the screen to turn off so that i can turn it back on and not have the static. FML, i never should have even attempted all of this
[LG V20 Guides, News, & Discussion] me2151:
Dude. Press the power button 1 time so the main screen turns off. You should still see static on 2nd screen. Set the phone face down on a surface(not your hand). Wait 30 seconds. Flip fpone back over and press power 1 time again to turn screen back on. Enjoy
[LG V20 Guides, News, & Discussion] emdroidle:
I'm trying to conquer one of the devices which is similar to the H990N. Assuming that effort is successful, I'll likely to be able to easily extend the effort to the H990N. Wondering whether there is a bounty for the H990N...

Sennheiser HD280 headphones are good and reasonably priced.

I suspect it will work with less difficulty. Should be able to skip flashing boot and shouldn't have the "static" problem, then this debug bootloader has the extra commands. Please note this is theory, I haven't tried it.

I noticed something interesting while targeting my device. During testing I'd turned off forceencrypt and booted with a partially working kernel before rooting my device. It appears the experimental kernel was able to decrypt /data simply by being turned on for a while. Once decrypted simply root then.

Adds to the complexity and you need to wait a while for /data to decrypt, but it should allow saving /data. Then comes the issue of wanting to turn encryption back on...
[LG V20 Guides, News, & Discussion] rjc2233:
Im sorry. I know im being annoying. Thats just the problem though. the screen wont turn off. Neither the main nor the secondary. I even let it sit for about half an hour thinking it just needed to finish the boot. Still nothing.
[LG V20 Guides, News, & Discussion] me2151:
Its not really the root that needs the decryption. Its twrp. Twrp is unable to access the data directory when encrypted. Granted it MIGHT be possible to decrypt the phone before doing the twrp step which MAY allow the data partition to be backed up then restored once twrp erases the data partition. That is also just a theory. Go ahead and PM me if you want an extra mind for tackling the issues you're fighting.
[LG V20 Guides, News, & Discussion] me2151:
I wonder if you are stuck on the bootanimation. Did you flash another boot.img or are you still on boot1.img(gets flashed during step3) also you might need to flash supersu before you can boot.
[LG V20 Guides, News, & Discussion] rjc2233:
i flashed the boot1.img
[LG V20 Guides, News, & Discussion] me2151:
Boot1.img will not fully boot(its meant to allow you to get into recovery the first time) type this into a command prompt where your files are

fastboot flash boot bootbackup.img
[LG V20 Guides, News, & Discussion] lennybronx:
I would like to thank all the developers once again for their hard work. I have one question...

Do any of these work?

https://www.search4roots.com/easily-root-lg-v20-vs995-android-nougat/

https://root-android.kingoapp.com/lg/how-to-root-lg-v20-root-apk.htm

Please reply to this and quote it if possible so I get a notification. Thanks a lot!
[LG V20 Guides, News, & Discussion] me2151:
No. There is NO one click method. It is not even in development anymore.
[LG V20 Guides, News, & Discussion] rjc2233:
flashed boot backup successfully and it doesnt go past the lg screen. Which im assuming means i need to reflash twrp, supersu, and a rom, and then the kernel again?
[LG V20 Guides, News, & Discussion] me2151:
Nope just reflash supersu. Use the previously mentioned(like 2 pages back) hw keys method to get to twrp then just reflash supersu through twrp then reboot.
[LG V20 Guides, News, & Discussion] rjc2233:
Sweet hell. It worked.....but when i turn the screen back on it says system ui has crashed and then powers down.

lol. Looks like there isnt going to be a problem i wont run into.

BTW. Im sending you a little money for being so patient and helpful
[LG V20 Guides, News, & Discussion] me2151:
I... Dont know that error. Try rebooting?
[LG V20 Guides, News, & Discussion] rjc2233:
I fixed that. At one point i reflashed twrp and didnt format data. Now that that is fixed, it boots, i do the trick to get rid of the static then the phone just reboots.

P.S. Should i maybe just make a thread and tag you so i dont keep cluttering up this one?
[LG V20 Guides, News, & Discussion] me2151:
You dont need to. At this point everything works now right? If you run into more problems you can make a thread and mention me. I always look at my mentions, i just may not always reply if the issue was solved. Also i didnt see it before but thank you if you decide to donate. Every little bit helps :)
[LG V20 Guides, News, & Discussion] rjc2233:
It would work but it just keeps rebooting after it boots.
[LG V20 Guides, News, & Discussion] me2151:
Ummmm yea make a new thread and tag me. In the meantime go into twrp and make a backup of system and boot then try installing a different rom. Something might be wrong with your stock rom. Which carrier is this?
[LG V20 Guides, News, & Discussion] rjc2233:
Haha. See, ill encounter every problem there is before its through.

Its at&t
[LG V20 Guides, News, & Discussion] AlisGelida:
Ow, thank you, but I was looking for a portable headphone/IEM - I already own the ATH M50x to trick the DAC in high gain. Anyways I'm going straight to the hardware solution: just checked a lot of pages on Head-Fi forum "LG V20 Audio quality discussion" and figured out that I need this cable to add impedance and get headphones recognized as high impedance devices (so max. gain, not the high one).

Keep up your work anyways, I'm still really interested in that mod! Thank you! :fingers-crossed:
[LG V20 Guides, News, & Discussion] BigMosley:
delete
[LG V20 Guides, News, & Discussion] BigMosley:
I am at the same location with the same error. After doing Step 3 my phone comes on with the "Verizon" screen but constantly vibrates and doesnt boot up. I am able to get back into fastboot again and run Step3 but it just keeps sticking on the Verizon screen with the phone vibrating. Am I missing a step? Any help is much appreciated

---------- Post added at 08:21 AM ---------- Previous post was at 08:03 AM ----------

Also, when the phone is stuck on the Verizon screen and my PC tries to download the "lge android mtp device driver" fails to install. However, if I type in "adb reboot recovery" my phone will restart and go to a screen that is all static looking. I am not sure what went wrong, everything was going great until Step3 now my phone is stuck.

---------- Post added at 08:46 AM ---------- Previous post was at 08:21 AM ----------

Starting to get worried.... hope I didn't brick my new phone.... :(
[LG V20 Guides, News, & Discussion] CharlzO_2000:
Silly as it sounds, if you have your phone plugged in when it's trying to reboot and sticking you at that screen, try doing that step with the phone unplugged and see if it changes. Mine acted weird, and did that same thing, would sit there for twenty minutes on vibrate and no change. Probably a total coincidence, but it did work once I unplugged the cable. Worth a shot.
[LG V20 Guides, News, & Discussion] BigMosley:
Are you saying I need to put the phone back in fastboot and run Step3 again? Then unplug the device once the phone reboots?

Truthfully at this point I would be happy with a working device again rooted or not...
[LG V20 Guides, News, & Discussion] CharlzO_2000:
Right, try rebooting with the cable unplugged and see if it gets passed the logo screen.
[LG V20 Guides, News, & Discussion] BigMosley:
This didn't matter, it is still sitting on the Verizon screen. Were you on the latest Verizon update? I believe I read somewhere the latest update was creating issues which is why I am probably stuck.
[LG V20 Guides, News, & Discussion] Buzzy42:
The static screen is normal and possibly indicative that the phone is rooted and you're done. Have you been in twrp? Let it sit for 20 minutes face down (so it can initialize android and cover the proximity sensor which is key to clearing the static ) and see if it works. After a successful root you will have a fully static screen on every boot which you clear up by covering the proximity sensor so the phone turns of the second screen- some roms fix it, some don't, it depends which kernel they use.

The phones not bricked, you just kind of need to figure out what step you're at. You might be done.
[LG V20 Guides, News, & Discussion] BigMosley:
The last thing I did was Step3. I ran Step3 and the phone rebooted and could never come out of the Verizon logo screen in the beginning and keeps vibrating. When the Verizon screen comes up and if I open a command prompt and type adb reboot recovery the phone will turn off then come back on the static screen then after a few minutes it will reboot on its own right back to the Verizon screen. If I simply reboot the phone the LG screen comes up then the Verizon logo loads and stops. The only time I see the static screen is when I do adb reboot recovery and when I put the phone in download mode it goes static after a minute or 2.

---------- Post added at 11:46 AM ---------- Previous post was at 11:32 AM ----------

Well I let it sit there for 30 minutes and its still on the Verizon screen, any ideas of what I should do next?
[LG V20 Guides, News, & Discussion] me2151:
My message you guoted was for someone else... Anyway yes its normal behaviour on att.

Edit: as for the guy above me you didnt move twrp to the same directory as all the other files so it didnt install. And reread the guide. You missed something
[LG V20 Guides, News, & Discussion] BigMosley:
I was able to use LGUP to get my phone back to stock and working again. Thanks for your help.
[LG V20 Guides, News, & Discussion] cwis:
I'm still apprehensive about rooting the h910. I've rooted from my first Android (G1) to my all of my nexus phones and now this.

Whats the worst that can happen? If I softbrick it, does that mean I have a dead phone and if thats the case, am I screwed because the bootloader is now a debug BL? Can I go back to stock-not for warranty service, but to get it working again?
[LG V20 Guides, News, & Discussion] me2151:
Att(h910) does not have a kdz available so no you cannot go back to stock
[LG V20 Guides, News, & Discussion] Snazarian:
So has the youtube issue been fixed - can we update the youtube app on the Sprint variant?
[LG V20 Guides, News, & Discussion] poixninja:
It is fixed by flashing a new kernel, most (if not all) of the issues in the op are caused by the debug kernel.
[LG V20 Guides, News, & Discussion] cwis:
If I can get into twrp, i assume this means I can flash another rom. Correct?
[LG V20 Guides, News, & Discussion] me2151:
Yes
[LG V20 Guides, News, & Discussion] pbedard:
I'm bricked with no kdz I can't get service restored on my v20 it won't accept the msl to be reprogrammed
[LG V20 Guides, News, & Discussion] me2151:
First off you are not bricked. What you are saying is not ANYWHERE near a brick. Dirtysanta did not cause your issue. Please make a new thread asking for help.
[LG V20 Guides, News, & Discussion] Chaz187:
What on earth makes you think your bricked..... You need to ask in general thread.... This is not the place to ask for help after you installed a rom and borked your phone?

Sent from my LG-LS997 using Classic Rom
[LG V20 Guides, News, & Discussion] pbedard:
Mevermind
[LG V20 Guides, News, & Discussion] poixninja:
So, i know it should still give locked-state = locked, but i cant seem to boot unsigned images using fastboot boot
[LG V20 Guides, News, & Discussion] BigMosley:
So this Dirty Santa rooting method will not work on Verizon phones with software version VS99513A ?
[LG V20 Guides, News, & Discussion] me2151:
It does supposedly
[LG V20 Guides, News, & Discussion] BigMosley:
I currently am and my phone got stuck on Step3 and wouldn't boot back up so I could go into recovery. I am trying to rule out the possible issues because I would really love to become rooted and flash the Weta ROM.
[LG V20 Guides, News, & Discussion] me2151:
You didnt flash the recovery properly. I already told you the issue before
[LG V20 Guides, News, & Discussion] BigMosley:
My apologies, I just found the post and reread your comment. So you believe not having TWRP in the same location was the issue?
[LG V20 Guides, News, & Discussion] me2151:
Correct. You stated you rebooted to recovery but just got static. If you get static at all that means that the phone IS rootable. If you get static on recovery that means that the stock recovery is still there and twrp is not installed. Twrp automatically gets installed IF it is in the same directory as the rest of the files
[LG V20 Guides, News, & Discussion] BigMosley:
I understand now, thanks for clarifying. I am just not completely sure what you mean by extracting the zip files to the "active ADB directory". Pardon my ignorance I haven't rooted a device in years.
[LG V20 Guides, News, & Discussion] nahepler90:
The active adb directory is the folder that has all the adb and fastboot programs in it
[LG V20 Guides, News, & Discussion] BigMosley:
I gotcha. When I open a command prompt on my PC do I always open it in the directory? Hold shift and right click in the directory folder and click open command line here? Or do I just go to the start menu and type CMD and begin?
[LG V20 Guides, News, & Discussion] nahepler90:
I believe it has to be in the directory. I downloaded adb lite and such and have a folder on my desktop that has the command prompt/adb/fastboot files already in it so I just open it from that folder so I'm not 100% sure.
[LG V20 Guides, News, & Discussion] BigMosley:
I used a automated program online that installs the ADB files and the LG drivers. There is a folder under the C: called ADB, is this the ADB directory? Trying to ensure I know exactly what I'm doing before I try again.

Thanks for everyone's help.
[LG V20 Guides, News, & Discussion] nahepler90:
Do a search on here for minimal adb and fastboot. As its name says, it has the minimum files required to run adb and fastboot. I used it to root. The adb directory will be the folder created when you extract minimum adb and fastboot. And it will have the command prompt in the extracted folder that will use that directory. You will get an antivirus pop-up like most people have, it is nothing to be alarmed about.

---------- Post added at 01:38 AM ---------- Previous post was at 01:36 AM ----------

I believe that will be the directory. Is there an adb program in that folder that opens up a command prompt?
[LG V20 Guides, News, & Discussion] BigMosley:
I believe so, I will be doing this on my work computer tomorrow and can't 100% remember but I believe so.
[LG V20 Guides, News, & Discussion] nahepler90:
Then you should be golden! Just make sure all your files are in that folder and use the adb and fastboot programs that are in there
[LG V20 Guides, News, & Discussion] BigMosley:
Thanks again for the info, I will be trying again tomorrow morning and will report back if any issues occur. It's good to know I can always use the KDZ file in LGUP incase anything happens.
[LG V20 Guides, News, & Discussion] nahepler90:
Good luck and dont panic too bad if something doesnt go exactly right. I panicked when I saw the static screen at first and thought I was bricked. But even if you do mess up entirely there is the kdz method.
[LG V20 Guides, News, & Discussion] BigMosley:
Would you by any chance know of a way to backup your phones settings and home screen setup?
[LG V20 Guides, News, & Discussion] nahepler90:
Phone settings I do not. I paid for a different home screen launcher that has the ability to backup layouts for you. The settings i just remembered or wrote down certain things I thought most important, never really got attached to certain things because I used to constantly flash new roms and whatnot.

And since it does a full data wipe and decrypts the phone, I am sure the LG backup is a no go for restoring. Someone correct me if I am wrong.
[LG V20 Guides, News, & Discussion] yuppicide:
The OP says:

"- The above links downloaded and SuperSU placed on the SD Card."

I definitely need a card installed? I don't have one currently.

EDIT: Sorry I do have one that should work. I found it right after posting this. Forgot I had a Raspberry Pi not in use.
[LG V20 Guides, News, & Discussion] pbedard:
Anyone know whats up sith the su binary getting deleted i tried searching
[LG V20 Guides, News, & Discussion] yuppicide:
I got through the end. I am on Sprint.

It says "Unfortunately, the process com.android.phone has stopp..." and I hit close app. It pops up every 3 seconds.

Since it was late in the night (2AM) when I posted that last message. I took my phone to work with me this morning. I re-wiped things, re-flashed stock rom and SuperSu. I used a root checker and it says I am rooted.

Is Step 6 for Sprint to do or not? It says **** ALL USERS **** so that's what I followed yesterday then at the end of the step it says for non-Sprint users. I think that's where my issue was. Today I did not flash boot2.img and my phone is working okay.

When I reboot my phone every time there's a ! corrupt message. Should that always come up?

Also now that this is done should I not install any LG updates that come through? I suppose they won't work, correct? But I can install updates through Play store except for YouTube which will break if I do.

How the heck do I get the Android System Update icon to go away?

At this point I assume I am okay to flash another ROM if I find one here?
[LG V20 Guides, News, & Discussion] yuppicide:
I just went on break from my office.. bluetooth works. Mobile data does not work.
[LG V20 Guides, News, & Discussion] me2151:
Do a profile update in the settings. Yes the triangle is normal. No way to change that
[LG V20 Guides, News, & Discussion] yuppicide:
I did try to update and it didn't seem to work for me. This was before I saw your reply here. This did work for me:

https://xdaforums.com/v20/how-to/manual-program-sprint-ls997-v20-t3557676

It required me to download some software. I opened software and was able to get my MSID and was able to manually program the numbers in.

I noticed in that hidden programming menu it had my one or two things listed wrong. I rebooted, turned off wifi and verified mobile data was working.

Thanks a bunch for the help.
[LG V20 Guides, News, & Discussion] Buzzy42:
LG Backup actually worked fairly well for me rooting my VS995. I forget what it didn't get back but more than I expected was able to be restored properly after rooting.

Just to be safe I took the file LG Backup created and copied it entirely off my phone (even though it was on the SD card) and copied it back on after I restored (into the LGBackup folder on the internal storage).
[LG V20 Guides, News, & Discussion] painscough:
Stuck at ATT logo

Hello,

I have followed all steps in the OP. Got into TWRP and formatted data. Then followed steps 4.1 - 4.4 for the h910. After rebooting system it is just sitting at the AT&T logo for about 20 minutes now. Below steps 4.1 - 4.4 the op says "It may appear like the system has frozen but it has not. JUST WAIT!" is 20 minutes normal for wait time on this?

I was reading and searching through posts and saw people stating that bootbackup.img needs to be flashed back on for the phone to boot. Is this required after flashing supersu for the phone to fully boot?
[LG V20 Guides, News, & Discussion] daw41:
Follow this step