Step by step guide for lg v20 h918 unlocking, downgrading, rooting and twrp

[Beansie]

any one know where i can download the file "h918-miscwrte"
looks like it is no longer on github


[email protected]:/home/lglaf# git pull
Already up to date.
[email protected]:/home/lglaf# git checkout h918-miscwrte
error: pathspec 'h918-miscwrte' did not match any file(s) known to git


hard thing waiting.

@zeroderp: Did you ever find a way to resolve the "pathspec 'h918-miscwrte' did not match any file(s) known to git" issue? I encountered the same problem following the method in Part 4 of this thread: [https://forum.xda-developers.com/t/...locking-downgrading-rooting-and-twrp.3808258/] and so far my search for a solution or for another method to root my H918 LG V20 hasn't been successful. I currently have an H918 with firmware version H91810p and an unlocked bootloader but no path forward to achieve root.

 

[FeNo2]

@zeroderp: Did you ever find a way to resolve the "pathspec 'h918-miscwrte' did not match any file(s) known to git" issue? I encountered the same problem following the method in Part 4 of this thread: [https://forum.xda-developers.com/t/...locking-downgrading-rooting-and-twrp.3808258/] and so far my search for a solution or for another method to root my H918 LG V20 hasn't been successful. I currently have an H918 with firmware version H91810p and an unlocked bootloader but no path forward to achieve root.

@runningnak3d moved over to gitlab when microsoft took over github. I can't find his repository there, maybe he'll see this and reply.

I found this, maybe it'll help:

https://gitlab.com/raslin777/lglaf/-/branches

UPDATE:
I recently needed to do this again myself and located the file here:
h918-miscwrte_step1.sh

 

[memnon79]

@runningnak3d I did this and then installed LineageOS 18.1. Turns out LineageOS is not ideal as can't connects to hidden wifi and runs sluggish. I am looking to put my 918 back to Oreo. Any suggestions for how to do this? I am on TWRP 3.5 on my recovery partition. Need new kernels, modem files, etc? I tried to install a 918v20h image from here and it installed, but stuck in logo bootloop and the message to lock bootloader.

Thanks.

 

[DerkWehler]

STEP BY STEP GUIDE FOR LG V20 H918 UNLOCKING BOOTLOADER, DOWNGRADING, ROOTING AND INSTALLING CUSTOM ROMS (NOOB FRIENDLY)


CHECK YOUR PHONE SOFTWARE VERSION IN SETTINGS---ABOUT PHONE----SOFTWARE INFO
IF IT IS ANYTHING BETWEEN H91810P TO H91810U MEANS IT IS ARB1 (ANTI ROLL BACK 1) AND YOU NEED TO USE LAFSPLOIT METHOD TO ROOT AND INSTALL TWRP,
IF YOUR VERSION IS H91810O OR BELOW (ARB0), YOU CAN EITHER USE DIRTYCOW OR LAFSPLOIT METHOD FOR THE SAME.
IF YOU ARE ON ARB1, PLEASE FOLLOW THE METHOD BELOW,

My software version is H91820H. Can I still use this? Any help appreciated, thanks in advance.

 

[systemdlessvirgin]

I need help! help with dirtysanta on v20?

elsa:/ $ id
uid=10258(u0_a258) gid=10258(u0_a258) groups=10258(u0_a258),3003(inet),9997(everybody),50258(all_a258) context=u:r:untrusted_app:s0:c512,c768

2|elsa:/ $ applypatch /system/bin/atd /storage/emulated/0/dirtysanta
usage: applypatch [-b <bonus-file>] <src-file> <tgt-file> <tgt-sha1> <tgt-size> [<src-sha1>:<patch> ...]
or applypatch -c <file> [<sha1> ...]
or applypatch -s <bytes>
or applypatch -l
Filenames may be of the form
MTD:<partition>:<len_1>:<sha1_1>:<len_2>:<sha1_2>:...
to specify reading from or writing to an MTD partition.
2|elsa:/ $
i cant seem to get the command 'applypatch /system/bin/atd /storage/emulated/0/dirtysanta' command to work, any help?

 

[imrankhan500]

WHAT NEXT?
NOW THAT YOU HAVE ROOTED YOUR MOBILE, I WOULD RECOMMEND DOING THE BELOW TWEAKS FOR FURTHER ENHANCED EXPERIENCE....

1.THERMAL THROTTLING
IF YOUR ARE STILL ON A STOCK BASED ROM , I WOULD STRONGLY RECOMMEND TO RECONFIGURE YOUR THERMAL FILE TO PREVENT ANY POSSIBLE LAG WHEN USING EXTENSIVELY...

FIRST DOWNLOAD THE FILE BELOW:
https://drive.google.com/file/d/0B0W3xXHgfOxvLUpKNWhrWDE0TDg/view


USE A ROOT EXPLORER (PREFERABLY ES EXPLORER) AND GO TO ROOT/SYSTEM/ETC.
YOU SHOULD HAVE A FILE NAMED thermal-engine-8996.conf
RENAME IT TO thermal-engine-8996.conf.bak (JUST FOR A BACKUP IF ANYTHING GOES WRONG)

ENSURE THE ABOVE DOWNLOADED FILE IS IN .conf FORMAT
IF IT ISN'T , RENAME TO thermal-engine-8996.conf
NOW SAVE THE FILE TO THE SAME DIRECTORY VIZ ROOT/SYSTEM/ETC
GIVE PERMISSION TO THIS FILE TO rw-r--r-- USING THE ROOT EXPLORER ( SELECT FILE--->PERMISSION--->READ WRITE, READ, READ)
FINALLY SAVE AND REBOOT.

THIS WOULD OVERWRITE THE THERMAL LINKED PERFORMANCE OF THE CPU TO AVOID ANY LAG WHEN USING EXTENSIVELY.

2. RCTD REMOVER

ALSO I WOULD STRONGLY RECOMMEND TO REMOVE THE LG'S RCTD CCMD AND TRITON MONITORS AS THESE WOULD RUN CONTINUOUSLY IN A ROOTED LG PHONE AND CONSUME LOT OF RESOURCES...
JUST INSTALL THE RCTD REMOVER APP FROM BELOW LINK:

https://labs.xda-developers.com/store/app/com.zacharee1.rctdremoverforlg

GRANT SU PERMISSION AND CHECK THE DESIRED FILES (I CHOSE ALL THREE FILES) AND CLICK ON PATCH, FLASH IMAGE AND REBOOT (THIS WOULD PATCH THE BOOT FILE, SO AGAIN IT IS ADVISABLE TO CREATE A BACKUP OF THE CURRENT BOOT IMAGE USING TWRP OR WITHIN THIS APP ITSELF)

3. SCREEN CALIBRATION:

https://play.google.com/store/apps/details?id=com.grarak.kerneladiutor

INSTALL KERNAL AUDITOR APP FROM PLAY STORE AND GRANT SU ACCESS
CHANGE THE BELOW VALUES WITHIN THIS APP (SCREEN SETTINGS)
Minimum RGB value = 35
Saturation Intensity = 27
Screen Hue = 1520
Screen Value = 112
Screen Contrast = 132

THIS WOULD SOMEWHAT REDUCE THE BLUE TINGE AND GHOST APPEARANCES OF THE SCREEN

CREDITS: @Holyman007 for his thermal tweak @Zacharee1 for his rctd remover app

Hi, How are you doing? I have installed TWRP, using this method, but, when updating the TWRP, to the latest 3.5.2. It always reverts back to 3.2.1. Why? Please Help Me Out.

 

[imrankhan500]

My software version is H91820H. Can I still use this? Any help appreciated, thanks in advance.

No, you can't use this. You will have to downgrade to h91810p. That is the version, where you can install TWRP.

 

[imrankhan500]

Download magisk and twrp here https://androidfilehost.com/?fid=746010030569963731

While you are in the last step, in mount, select otg USB. You can push it to SD card and manual flash.

If you booted to system without magisk and flashing twrp, power off the phone, hold volume up, put in the USB, connect to PC. This will put you in twrp since download mode is replaced by twrp.

Now you can flash both files.

Hi, How are you doing? I have installed TWRP, using this method, but, when updating the TWRP, to the latest 3.5.2. It always reverts back to 3.2.1. Why? Please Help Me Out.

 

[Aethera]

Please note that prior to running 'git pull' for lafsploit on either the mAID or FWUL system you first have to run 'git init'

 

[Aethera]

@runningnak3d I did this and then installed LineageOS 18.1. Turns out LineageOS is not ideal as can't connects to hidden wifi and runs sluggish. I am looking to put my 918 back to Oreo. Any suggestions for how to do this? I am on TWRP 3.5 on my recovery partition. Need new kernels, modem files, etc? I tried to install a 918v20h image from here and it installed, but stuck in logo bootloop and the message to lock bootloader.

Thanks.

Get LGUP and flash the lastest stock KDZ. I use LGUP 1.16 with this patch.

 

[Aethera]

@zeroderp: Did you ever find a way to resolve the "pathspec 'h918-miscwrte' did not match any file(s) known to git" issue? I encountered the same problem following the method in Part 4 of this thread: [https://forum.xda-developers.com/t/...locking-downgrading-rooting-and-twrp.3808258/] and so far my search for a solution or for another method to root my H918 LG V20 hasn't been successful. I currently have an H918 with firmware version H91810p and an unlocked bootloader but no path forward to achieve root.

Prior to running 'git pull' you first have to run 'git init'

 

[Aethera]

Use LGUP?

Using this guide I ended up with an H918 with download mode replaced by TWRP. Does this mean I can't use LGUP to install a KDZ file now? If I can't, how can I restore download mode?

You can flash laf restore .zip. Sorry I don't have a link for it.

 

[Aethera]

so, one thing i just realized was the zip image was not a flash image,,like lineage17.zip,
it is a zip file that needs to be unzipped,,THEN it is a .img file that can be installed on a jumb drive

i derped out pretty hard on that.

you mentioned this fwul downloads aditional files????

PLEAS tell me the PC does not need to be connected to the internet while i am flashing the phone.....

am rebooting the programmer pc with fwul now....*scary music*

The USB live system needs to be connected to Internet if you're using lafsploit in order to download from git repo.