[LG V20 Guides, News, & Discussion] the_R00ter:
i am making this post because i have an lg v20 running 20h. there was no root guides available, so i decided to root mine using an older guide. it succeeded, but was very hard and time consuming. Being a noob at the time, i was also extremely nervous that i could possibly brick my phone or screw something up. i didn't, and no part of this should brick yours either. ***However - if you do somehow break your device in any way, that is on you. by completing these steps, you assume full responsibility. now that we have that out of the way, lets continue. at the end of this guide, you should have a rooted device with your choice of os (7 or 8 - or even a custom rom if you choose!). you should also have twrp. this guide would not have been possible without users runningnak3d and clsA

**** Also, during this Proccess, Your Phone WILL be wiped clean!!! don't forget to back up photos, videos, etc...*****

don't download any other files than from this guide.

1. download these files (required) https://lg-firmwares.com/downloads-file/4578/H91510e_00_VTR_CA_OP_1205.kdz (for a rootable os that we can flash, - get this also (required) https://xdaforums.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222 this program is called lg up and has been patched to work with this phone. you will also need this. https://androidfilehost.com/?fid=1322778262903990218. these are the root files and need to be all in the same folder as where lg up is installed. you will also need to have access to fastboot and need to have adb installed. that is pretty easy, give it a google search if you still need help.

if you are running 32 bit, get this https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

this is the OS. get nougat, which has like three less steps (you can't upgrade to oreo on this os once rooted) or scroll down and get the oreo file. nougat (really old version) https://drive.google.com/file/d/1S82HVNt2rAtXgBY499IBJnoCVFnpCf_X/view

Oreo - get this first file, and the ones under it. https://www.androidfilehost.com/?fid=1322778262904015326

***https://androidfilehost.com/?w=files&flid=283977*** You have to have this file if getting oreo. if you chose nougat, then don't get this.

2. Now that you have everything downloaded and installed, put your phone into download mode. (power it off, hold the volume down button and plug in a usb c cable attached to your pc. don't stop holding volume down until you see download mode.)

3. once it is in download mode, open up lg up. select your device, (it should be in standby mode, according to lg up) and click dump (this is a total backup of the phone, you are lucky you know this right now, I didn't when i rooted mine) . it will bring up a file explorer, select where you want it to save to. (I chose my desktop). once you have a folder selected., it will bring up a bunch of options for partitions. click select all and uncheck user data. ****Make SURE that you don't unplug your phone during any part of this process or any other process in this guide, it will permanently brick it. ***** ow that you have selected everything but userdata, click start.

4. once that finishes, you will have made a full backup of your phone in case something goes wrong.

then click the partition DL button and select the h915 v10e kdz file (the file that i said was the rootable os we can flash) (the first file you downloaded). make sure bin file stays checked. then click start. once that finishes, your phone should automatically reboot into an old nougat operating system. then go to settings, enable developer options, and turn on usb debugging. that is easy, if you can't figure it out, google is your friend. now you should have no cellular signal. this is not the permanent ROM.

5. go to the play store and download terminal emulator for android. (once usb debugging has been enabled :)

then go ahead and go to the folder where you extracted the root files/package. hold shift and right click to open a command windows there or powershell, whatever your pc says. open 2 of those windows. then, in the first one, type, adb logcat -s dirtysanta

****don't close this window.*****

then in the other window, type STEP1.BAT

*****don't close this window.***** It may take a minute, but after a while it will let you type again. once you can, type run-as con

chmod 0777 /storage/emulated/0/*

6. then, pull up the window you used the logcat command in. leave it there so you can watch it

then, on your phone, go to the terminal emulator and type applypatch /system/bin/atd /storage/emulated/0/dirtysanta

once you do that, glance at the logcat window. once it says to run step 2, go to the window where you typed step1.bat. type STEP2.BAT

at this point, your phone should go ahead and reboot and say fastboot mode up at the top. now, go to your window where you typed all the .bats and type STEP3.BAT. wait until your phone reboots and you will see a screen saying that you can;'t use your phone. this is bogus, just ignore it and wait like 10-15 seconds for it to get past that screen. then it will boot that android and you should get a green screen.

Now, quickly, pull the battery from your phone. leave it out for a little while while we prepare the next steps.

If you want oreo, scroll to where it says OREO in capital letters. if you want nougat, scroll to where it says NOUGAT.

NOUGAT

use the file that you downloaded if you selected nougat - it should be a zip. it will be called h910-10r. DO NOT, I REPEAT, DO NOT UNZIP THE FILE. place it on a pre formatted micro sd card. then, place the battery and sd card back in your phone. also, unplug the phone. then, hold down the volume down key and hold hold the power key. once you see the lg logo, release the power key and immediately hold the power key again. then, you should get a screen that asks if you want to reset your phone. use your volume keys to navigate and select yes, then again confirm it. then, after letting it reboot, it should go into twrp. once there, go to wipe\and select format data. then type yes to confirm. then, go back to the main screen and click wipe again. go ahead and click advanced and wipe your dalvik cache. once done, go to home screen and click install. select the select storage option down at the bottom and change to sd card. then find the h910 zip file and install it. then go ahead and reboot your phone, you will have a rooted android 7 rom. you will also have signal. then download supersu from the play store and open it to have root.

OREO

use the file that you downloaded if you selected oreo - it should be a zip. it will be called something along the lines of full stock oreo rooted. DO NOT, I REPEAT, DO NOT UNZIP THE FILE. place it on a pre formatted micro sd card. also, go to your root package folder and find the twrp image file and put that on your sd card. then go get the mk200 zip file and also place that on your sd card. then, place the battery and sd card back in your phone. also, unplug the phone. then, hold down the volume down key and hold hold the power key. once you see the lg logo, release the power key and immediately hold the power key again. then, you should get a screen that asks if you want to reset your phone. use your volume keys to navigate and select yes, then again confirm it. then, after letting it reboot, it should go into twrp. once there, go to wipe\and select format data. then type yes to confirm. then, go back to the main screen and click wipe again. go ahead and click advanced and wipe your dalvik cache. once done, go to home screen and click install. select the select storage option down at the bottom and change to sd card. then find the oreo full rooted zip and install it then, install the mk2000 file. after you have done this, click install image and select the twrp. the reason you need to re flash this is because that oreo file re installs the stock recovery. then install the twrp. now reboot your phone. you will have a rooted android 8 rom. you will also have signal. then download a magisk 6.0 manager apk from chrome browser to have root.

IF this worked and your enjoying root give me a thanks.:):):):):)