yashsingh1/xdaforums huggingface dataset:
[LG V20 Guides, News, & Discussion] NeonHD:
I don't mean to sound like an ungrateful wretch, but why is this still the only way to unlock the bootloader on the V20?

Meanwhile for the LG G7 and LG V35 you simply boot the phone into Qualcomm EDL mode and use QFIL to flash a modded laf image into the laf partitions and boom, bootloader unlocked. SOO MUCH EASIER.

Like many others, I also cannot get past the applypatch command part (on F800L) and returns a syntax error.
[LG V20 Guides, News, & Discussion] NeonHD:
UPDATE: I followed this YouTube video guide. I used the provided root package from the description and the applypatch command worked perfectly. The rest of the scripts also worked perfectly and was able to get TWRP. Not to mention his version of the script was fully automatic (no "press 1 or 2").

DO NOT WASTE YOUR TIME ON THIS THREAD! I highly recommend downloading this root package instead and following the instructions in this video. You will not regret it.

Edit: Attached the root package for convenience.
[LG V20 Guides, News, & Discussion] riverstyxxx:
This tutorial does NOT work with Oreo, only Nougat. The code

applypatch /system/bin/atd /storage/emulated/0/dirtysanta

is invalid. I went through it on both versions, only works with nougat.
[LG V20 Guides, News, & Discussion] coyotl55:
at 16, in Terminal Emulator I get an error about usage. I thought maybe I had added a space in error but not so. So I don't get any prompt to continue in the RUNMEFIRST terminal window. I'm using linux. So totally stuck there.
[LG V20 Guides, News, & Discussion] coyotl55:
And up to that it's identical with original instructions. Will try in windows again, only tried on an old win 7 laptop so far.
[LG V20 Guides, News, & Discussion] Skorpion96:
Seems that i could try with one H990DS. has someone already tried? if not i will

edit:i just succeded
[LG V20 Guides, News, & Discussion] VeiledDroidCat:
so i found my old lg v20 wanting to get it up to date so i can use as a smart home remote so it doesnt sit to die

i want to bootloader unlock it but seems like from what im hearing im skrewed sounds bs since no one put in the effort beside you thank you again for the hard work

but heres the catch 22

ls997

nougat 7.0

september 17, 2017

do you think its possible?
[LG V20 Guides, News, & Discussion] natalie0104:
trying to root f800k using this method as reccommended on reddit.

after running "fastboot flash boot bootbackup.img" to fix performance issues I get static screen on boot and im unable to boot into TWRP after that. everything else worked perfectly up to the last steps, I just cant get into TWRP to flash SuperSU again. the phone works fine though.

if I just installed a custom rom would I still have to do that step to avoid the performance issues?
[LG V20 Guides, News, & Discussion] mike666:
I am looking for help and advice. Magisk upgrade to a new version messed up my root on LG V20. Attempts to download a old version of magisk manager and flashing of the boot image failed. Now my phone is in the boot loop. But I can get into TWRP with button combination.

Can somebody share a stock boot.img? Or even working patched image for LG-H918 should work.

I will appreciate any other thoughts as well.
[LG V20 Guides, News, & Discussion] Darnrain1:
Try this, flash Magisk Uninstaller in twrp reboot into system. Go back to twrp and flash Magisk.

Magisk-uninstaller-20210117.zip

Magisk-v21.4.zip
[LG V20 Guides, News, & Discussion] onoakino:
Guys, I need your help please.

So I am following a video tutorial here that is based on the tutorial in the OP.

I successfully am to finish steps 1, 2, and 3. I am able to install the TWRP.

However, here is the mistake that I made:

In the video tutorial, after he was able to install the TWRP and boot into it, he wiped the data partition to remove the encryption (which I followed too), and then he proceeded to wipe dalvik cache, and other partitions including SYSTEM partition. The idiot in me did the same and it was too late when I realized that I shouldn't have included the SYSTEM partition as I only wanted to root Nougat, and not install another ROM which the guy in the video is doing.

And so I am stuck.

I just want to know what I can do to remedy the situation.

1. Should I just reflash stock Nougat kdz again using LGUP to recover from this error?

2. Or can I just pull the "system.image" from stock Nougat kdz and flash it using TWRP?

3. If I reflash the stock nougat kdz, do I have to do the entire process again? (steps 1, 2, 3)?

Help please?
[LG V20 Guides, News, & Discussion] dextructor:
Since you didn't specify what variant you have I will guess it's related to the title (LS997|VS995|H910|F800L). You can flash a modified/debloated AΩ ALPHA OMEGA ROM if you have those devices. The updated download folder.

Super Rom should work as well. The updated download folder.

WETA ROM. The updated download folder.

Or

If you have the time+patience you may re-flash the stock KDZ and do the process again until the part that you don't need to erase more than necessary.
[LG V20 Guides, News, & Discussion] onoakino:
thanks @dextructor!

Yeah, I missed to mention my hardware.

I have the F800L hardware, and was working on the corresponding nougat kdz for f800L too.

I'll try your suggestions. Thank you very much!

-----edit-----

flashing stock nougat kdz worked.
[LG V20 Guides, News, & Discussion] coldspring22:
Thanks for pointing that out. Yes this youtube video by Browningate is absolutely best guide for rooting/bootloader unlocking V20 out there.
[LG V20 Guides, News, & Discussion] NeonHD:
Indeed. I hope more people will either find that video or see my post instead of trying to follow the instructions of this thread.
[LG V20 Guides, News, & Discussion] NemoCop:
Hi everybody. My device is vs 995. windows 10 with all the files and drivers downloaded from the link in the first message. Everything goes fine until you enter "apply patch /system/bin/add storage/emulated/0/dirtysanta" in the phone terminal. Nothing happens after that. ADB sees the device. I installed all the files and drivers, downgraded android to 7.0. What can I do wrong?
[LG V20 Guides, News, & Discussion] coldspring22:
Windows 10? Did you disable virus antimalware? dirtysanta would be classified as malware. Also check out this youtube video by Browningate.

This is by far the best instruction for LG V20 "bootloader unlock".
[LG V20 Guides, News, & Discussion] NemoCop:
Thanks But I've already watched this video, I'm doing everything according to the instructions. and I have Windows initially with remote defender.

p/s

My voice calls have stopped working now, apparently the operator in my region has changed frequencies. If I install Lineage os on this device, will the situation improve?
[LG V20 Guides, News, & Discussion] coldspring22:
No. Actually worse. Voice will not work because LineageOS doesn't have volte for LG V20. After "dirtysanta" bootloader unlock/twrp install, I tried installed LineageOS 17, 18 and 20 on my vs995. Not only voice did not work, but I also couldn't get data to work either regardless of what APN setting i used. By contrast, I have older LG G3 for verizon with LineageOS 17 which works fine with data (but no voice). Afterwards, I flashed alpha rom for LG V20 (as in the youtube video) and everything works fine including voice. Initially I tried to use windows 10 laptop to unlock my LG V20, but built-in anti-malware was too much trouble, so i used windows 7 laptop and everything worked for me.
[LG V20 Guides, News, & Discussion] NemoCop:
del
[LG V20 Guides, News, & Discussion] NemoCop:
I finally beat this phone, the bootloader is unlocked. But the problem with voice calls has not been solved. The firmware is installed as from the video instructions, US99610f_00_1205.kdz, with android 7.0. The MK2000 Kernel Thread did not fit because it is only for android 8. How can I upgrade android to 8.0, so as not to block the bootloader back?
[LG V20 Guides, News, & Discussion] dextructor:
Like almost every other phone on earth, using a custom recovery to flash anything.

If a exploit was used to gain access and from there a plethora of things was developed for it, usually the manufacturer blocks that entry point and the community develops around the entry point trying not to trigger the future blockades.

So you have to search for the available options for your device (I'm assuming that is US996). And there are some custom based stock ROM's for it. (Non-exhaustive list)

Alpha Omega Rom Thread

Alpha Omega Rom Download Folder

Super Rom Thread

Super Rom Download Folder

WETA Rom

WETA Rom Download Folder

More download resources on the pinned post on V20 Reddit

Since I don't own your model and don't use stock based roms it's the best that I can do to help you on your situation.
[LG V20 Guides, News, & Discussion] NemoCop:
Thank you very much. 👍
[LG V20 Guides, News, & Discussion] NemoCop:
Put the Alpha Omega. The system boots up before entering the password. I do not know what the password is. An infinite number of attempts. What could I have done wrong?

ps

Reinstalling the system solved this problem. I installed the VS995_v2.2-mk2000 kernel. Voice calls still don't work. ⛔️ 📞 😡
[LG V20 Guides, News, & Discussion] dextructor:
For what I can remember reading in XDA forums and a few reddit posts, there's a strange combination of TWRP version that could cause those passwords before first setup.

Otherwise this is also because stock kernel and flashing custom kernel may solve also.

Regarding your voice calls, sorry to hear that, you can try the other roms to a different result, because for what I know in the US it's mandatory VoLTE to being able for making calls, and only stock-based ROM's can have VoLTE.
[LG V20 Guides, News, & Discussion] NemoCop:
Thanks Yes, it is, I solved the problem by changing TWRP. The firmware and kernel 2000 have been successfully installed, and the system has started. without a password. I am in Russia. Everything worked fine for many years, the problems with voice calls started a month ago. Apparently my provider (MTS rus) has changed the frequencies. SMS, wi-fi, and mobile Internet are working fine. Everything is fine with the SIM cards of other providers. I contacted my provider with my problem, the answer was that the errors come from your hardware.
[LG V20 Guides, News, & Discussion] dextructor:
When I try to at the surface level understand the situation, I check this site looking for compatibility problems regarding the device + country + carrier to see if I'm gonna have some problems before it happens.

Since this site at this time it's down I used another site and I don't know how accurate it is, but at least to me show that on 3G the device isn't compatible and/or the network changed in some way that your device can't use it. Apparently 2G still works there.

Since VoLTE only works on stock ROM's and even if you are on a stock ROM, isn't guaranteed to make it work, because every carrier has it own way to enable or even block certain devices "not certified" to their network on VoLTE. 2G and 3G don't have those restrictions by design, but VoLTE can have.

You can try other stock ROM's and test your luck, and another possibility it's to use LIneage but the VoLTE will not work, but 2G (on my country with H990N and H990DS) works just fine.
[LG V20 Guides, News, & Discussion] NemoCop:
I installed Lineage, but it didn't change anything, voice calls still don't work. I'm already tired of experimenting and mocking the device. I returned the standard firmware to Android 8. I do not know how to activate Volle, there are no instructions on the network for the model 995. Apparently, you will have to buy a global 990 board on Aliexpress, or a Korean f800.
[LG V20 Guides, News, & Discussion] dextructor:
Let me be as clear as I can.

Regarding VoLTE it's more a gamble and trickery than pure technique and or knowledge.

When we talk about 2g and 3g it's "physical" but since VoLTE it's using Voice Over LTE, it's done by software, protocols. So the carrier have a "whitelist" of devices that are certified for operating/enabling VoLTE and your device ask in a series of commands that happen through your modem+OS and the VoLTE it's enabled.

I say trickery because some phones technically can enable VoLTE without any problems, but you have to use certain files to send the correct commands or any other things, and if you are lucky that the community tested, have those files and documentation freely available, you can test on your own country + carrier + device.

On my country, even with a sim card configured and tested for VoLTE on another device, I couldn't enable VoLTE on my H990N and H990DS. You can have more luck? Yes, but isn't guaranteed.
[LG V20 Guides, News, & Discussion] coldspring22:
I didn't do anything except use twrp to flash latest version of alpha rom (A-O_VS995_20C_1.3.1.zip) on my vs995. And voice works perfectly. I didn't fiddle with anything at all. It just worked fine on verizon network.
[LG V20 Guides, News, & Discussion] NemoCop:
I started all the manipulations with the device just so that I could use voice calls. The 990, 800 will most likely have everything working as standard, without root rights, volte. and other actions.

Unfortunately, I don't have a verizon operator. I did all the firmware only to restore the full functionality of the device. Now I realized that all possibilities have been exhausted, and I will have to buy another motherboard.

Thank you all for your help!!!👍✊
[LG V20 Guides, News, & Discussion] dextructor:
Like I said, it's a very thin line + a combination of factors that needed to be aligned for VoLTE to work on any phone (the mobile carriers that have that control, and we as users just try to trick our devices to work with them), and for what I can remember, most of them do not require root.
[LG V20 Guides, News, & Discussion] gh0stza:
If I were you guys I would leave VoLTE off if it's not absolutely needed.

"Zero-click exploit"

It's not like you as the customer gets anything out of VoLTE...it's the ISP that gets all the benefit. They use a less saturated network to route your calls and charge you the exact same per minute. It's like a whatsapp call that gets charged per minute and comes out of your airtime.

PS: I wish that exploit was public knowledge, then my H870 would be rooted :cry:

Speaking of: Is there any progress with other models with this exploit?
[LG V20 Guides, News, & Discussion] dextructor:
Totally agree! I don't care about VoLTE at all (And luckily in my country isn't mandatory like in the USA) . It's just a way that most mobile carriers can get away by delivering mediocre services, and if you don't have a good enough call or service they usually will "suggest" that you should enable VoLTE, VoWiFi.

As far as I know, many of the minds behind the exploits and progress, they already moved on with other devices. No new breakthrough has been made, because what's available is good enough and/or there's no real incentive to try bypassing something like ARB on only one v20 variant.
[LG V20 Guides, News, & Discussion] gh0stza:
I'm not surprised... The H870 is almost ancient by today's standards. Still a great phone.

One day when I'm seriously bored I'll take a crack at the LG Keyboard exploit.

Thnx
[LG V20 Guides, News, & Discussion] Vander123:
Hello everyone, I am following all the steps correctly on my vs995 but when running id my device does not say untrusted_app? Any ideas. (I also tried multiple kdz)
[LG V20 Guides, News, & Discussion] dextructor:
Can you post the following screenshots:

1) The screenshots from your terminal?

2) About your phone with the Android security update?
[LG V20 Guides, News, & Discussion] Wayne Nathaniel:
The Link for Terminal Emulator is broken use this instead

https://apkpure.com/terminal-emulator-for-android/jackpal.androidterm/download
[LG V20 Guides, News, & Discussion] Wayne Nathaniel:
Is it okay if i use the US996 Image on my F800L ? Because the TRWP image says US996 instead of F800L.
[LG V20 Guides, News, & Discussion] Lumince:
So Id like to ask some more stuff about this.... Ive backed up my phones data with a program on my pc and Im probably gonna do this process when it seems I can recover from a brick with the full Verizon system image... I have seen that someone had trouble with their exfat 256 gb sd card and I have one.. Has anyone else had this issue after flashing this and rooting? I use the youtube app a lot so again ill probably wait.

I updated my phone yesterday and it is currently on build NRD90M now. I know I asked this on here already but Im not sure if it was fully answered. Will I have any problems with this since I updated?? If so, then it sucks to be me...

Also, is there any updates on someone getting a backup of the verizon img?
[LG V20 Guides, News, & Discussion] elliwigy:
if you dont have a system u need to flash a rom.zip in twrp
[LG V20 Guides, News, & Discussion] Slypnslyde:
Can someone help me get into TWRP. I can fastboot but adb on step 3 won't see any devices also I updated my drivers
[LG V20 Guides, News, & Discussion] grrump:
Tried flashing the only one we have access to, that I know of , the deodexed stock one, it installs and on reboot goes straight back to twrp.
[LG V20 Guides, News, & Discussion] elliwigy:
theres no way to flash a full stock verizon tot file to recover from brick.. in fact there is 0 tots available for any variant.. itd require a stock tot from vzw/lg and a dll to work with lg up to flash the firmware back to complete stock..

now if someone had a TWRP system ONLY backup of the verizon rom, it might be possible to make a verizon rom.zip to use in TWRP
[LG V20 Guides, News, & Discussion] DarkPaladin23:
Note to self, take an immediate system backup and put in a safe place when I do mine. Wish I could help with VZW but I'm on AT&T.

Edit: I'll also be happy to provide the AT&T backup file here if no one has grabbed it yet when I get around to it this weekend.
[LG V20 Guides, News, & Discussion] ZachJohnson:
I was afraid of that... I had a rooted Note 2 back in the day, and I could swear I'd wiped the data partition in twrp without any trouble, I never even occurred to me that wiping everything with root access might delete the rom itself... Backup...always backup...I should know better...

I stopped by the Verizon store and played all dumb, like I have no idea how this happened, and they gave me a number to call and said they'd send me a replacement and a box to send my current phone in. I already appreciate your time on this, but do you suppose it'd just be easier to try swapping at this point? I'm not sure how much leg work would go into making a vzw rom out of a system backup like that, and the amount of effort that just went into root was pretty heroic already...
[LG V20 Guides, News, & Discussion] justinswidebody:
If you want to reboot to recovery from your operating system, you can go into terminal emulator and type "reboot recovery" and it will boot recovery.

For people with no operating system..... In TWRP go to wipe/ then hit advance/ click system/ then click repair. Once it repairs the system partition you should be able to flash the Rom and it work. I had this issue because for some reason twrp wouldn't mount the system. After repairing it in twrp all worked great. This was on the Sprint ls997 variant.
[LG V20 Guides, News, & Discussion] Double0EK:
Power Off

Hold Vol Down

Hold Power

When The LG Splash Screen Appears Release Power for 1 Sec then Re-Press

Answer Yes 2 times
[LG V20 Guides, News, & Discussion] Gravemoss42:
So are there any roms for the VS955? If so, where might they be listed, if no, will that variant get its own thread?
[LG V20 Guides, News, & Discussion] c45h2012:
Seems alot of people with same issues please make sure to read everything thoroughly and follow the steps to a tee
[LG V20 Guides, News, & Discussion] KedarWolf:
I pledged $20 for the Canadian Freedom Mobile H915. If you get it working for other H915s it'll work for us, right? :confused:
[LG V20 Guides, News, & Discussion] Slypnslyde:
Well I did but a no go on passing step 3
[LG V20 Guides, News, & Discussion] Ryuk359:
I had the same problem so I just followed the commands manually. I believe it was like so.

Fastboot flash boot boot1.img

Fastboot flash recovery twrp.img

Fastboot flash boot boot1.img

Not sure the second flash of boot1 is necessary but it was in the commands so I did it to be safe. Am rooted and running fine.
[LG V20 Guides, News, & Discussion] AthieN:
SPRINT (ONLY) USERS -

Another suggestion if you are having problems wiping the device and/or installing the OS, even if it says it was successful but you are getting no OS after rebooting, or it's booting back into TWRP, go into Mount and make sure System is checked (also check the other box that talks about wiring to system if it's present) and then re-wipe everything per the OP, reboot to recovery (it even says to reboot recovery after formatting /data) and then flash the zip's.

I've noticed that this version of TWRP seems to have trouble mounting the /system partition properly.
[LG V20 Guides, News, & Discussion] ZachJohnson:
Just a little note in case anybody else runs across this... I rooted successfully but then I wiped my system partition in TWRP and it killed my rom - total brick. So a) nobody go wiping your system partition because that's bad; but 2) it's totally fixable.

I'm on Verizon and there isn't a vzw image around just yet, so I thought I was good and hosed. But on the advice of [MENTION=7927706]CaliBoyGomez[/MENTION] (who is a GD hero) I flashed the US996 deodexed rom and I'm back in business.

Thank you to everybody who was so kind to help me out with that, you saved my bacon.
[LG V20 Guides, News, & Discussion] nahepler90:
Is the device manager recognizing your phone when it is in fastboot? Mine wasn't and I had to right click it in manager (it said Android and had a yellow triangle with an exclamation mark in it) and select update driver. Had to do it a second time a little further in the process as well. Should fix your device from not being detected.
[LG V20 Guides, News, & Discussion] Slypnslyde:
No not recognized in fastboot. I updated the drivers just recently. The only downfall I'm using an old HP mini running XP lol

---------- Post added at 12:36 AM ---------- Previous post was at 12:33 AM ----------

No not recognized in fastboot. I updated the drivers just recently. The only downfall I'm using an old HP mini running XP lol
[LG V20 Guides, News, & Discussion] nahepler90:
I typed everything out and it didnt show up....

Third try... Fml

Do you know how to get to your device manager?
[LG V20 Guides, News, & Discussion] Slypnslyde:
Yes
[LG V20 Guides, News, & Discussion] nahepler90:
When you are in fastboot mode and connected, look for your device. Mine said Android/!\ (yellow triangle) right click it and select update driver. And do it via internet search. Should find it, download and update the driver. And hopefully fix your problem.
[LG V20 Guides, News, & Discussion] Slypnslyde:
Tried but the device manager couldn't install cant find necessary blah blah
[LG V20 Guides, News, & Discussion] nahepler90:
[MENTION=4591212]me2151[/MENTION] any other way to update the fastboot drivers? I've tried doing searches for them to no avail.
[LG V20 Guides, News, & Discussion] AlkaliV2:
Grab the latest Android Studio install and take them from there. It is a massive download though, so if you are on slow internet leave it going overnight.
[LG V20 Guides, News, & Discussion] Swizzle82:
All I have to say is, this thread makes me glad im on Tmobile.
[LG V20 Guides, News, & Discussion] Datblkbro:
Ok, the first day this came out I had a few issues.. First my sd card had got corrupted and wasn't flashing the su. Also other issues. What I did was those flash boot steps above but I replace boot1 with boot2.img then ran step 3 and followed other op instructions. All went well after that. Just remember when you in fastboot menu use the fastboot commands to find phone.(fastboot devices)
[LG V20 Guides, News, & Discussion] saboture:
I've got an AT&T v20 and used this method in about 10 minutes with no problems. I think there's a large population of people who are relatively new to flashing phones. Why people are wiping the system partition is beyond me lol..