[LG V60 ThinQ Guides, News, & Discussion] KouaV1:
Scroll all the way down and read update section

Hello guys after I have been spending sometime trying out dlls for lgup, I have found a way to downgrade my V60 T-mobilefrom A11 back to A10. This is only tested on T-Mobile Variant ONLY, If you do do these steps for the verizon or any other for the downgrade, If within 48hours + you get a pop up of out of date or force update.

-LG mobile drivers(need it so it can detect your V60): https://www.lg.com/us/support/help-library/lg-mobile-drivers-and-software-CT10000027-20150179827560

-LG firmwares kdz from https://lg-firmwares.com/ (seem to have euro and tmobile kdz, limit 2 download per day)

http://lg-roms.com/LG-Firmware-List/LMV600VM for verizon

-Get the LG UP files from this website https://www.mylgphones.com/download-lg-up-software

-link to the adb where I got it https://androidmtk.com/download-minimal-adb-and-fastboot-tool

or you can use adb app control https://appcontrol.neocities.org/index_en.html

-Dial "*#*#244773825625#*#*" onto your dialar to check anti rollback

-LG's main hidden menu if you need it is "*#546368#*600#"

LG UP

1) youll need to download and install LG UP 1.16 [Original from LG] - No patched - lab version

-2) youll need the " LGUP Common DLL Ver 2.1" from the LG UP 1.17 folder and move it over to your LG UP folder where LG UP was installed then to "model" folder and then finally paste it into your "common" folder

-SET UP - I would highly advise removing sim card and not using wifi(so it wont use data to check software update during setup) after skipping the set ups etc. Also make sure to log out of your google accounts to remove the frp lock on fresh setup so you can skip.

STEPS

Note: in T-Mobile version 10w(possible) and 10x you will get google to notify you of out of date software and will eventually from day 1 - day 30 force update when your not using. I hope this time it works.

Everything involves risk so if you want to try these steps then go ahead but be cautious as Im not responsible for what happens.

1) download the TMO(tmobile) V600TM10S KDZ

2) Eject your sim and also remove you google accounts from device to remove frp. Leave it ejected as you dont want any data connection after flashing as youll need to skip everything and disable the adb packages.

3) Launch LG UP and select refurbish option(note you will lose all your data so Id do a backup of your files somewhere or to the cloud), select your kdz as well for the flash. If you get something from LG UP on NT code or something Id just cancel that pop up and reflash you desired KDZ twice to be safe after its first flash.

2) Skip through the LG and Google Set Ups and enable developer setting by going to Settings>System>About Phone>Software Info> and then just keep tapping build number until you unlocked the developer settings.

3) In developer settings: turn off automatic updates and enable USB Debugging for adb.

4)Use adb app control or adb commands to UNINSTALL (pm uninstall -k --user 0 xxx.xxx.xxx) these 5 packages:

com.lge.appbox.client

com.lge.updatecenter

com.google.android.apps.restore( I think this app can just be disabled since it has the disable button)

com.google.android.setupwizard.

com.google.android.apps.work.oobconfig(simply just because it says in the apps as device set-up)

5) This is optional but Id just do it for the heck of it otherwise just skip this step. Dial *#546368#*600#>Field Test>WIFI Test>OTA Setting>select and disable each core for each country code and exit.

6) Power Off and insert your sim card and power back on and connect to data services or wifi and enjoy

Tip: Band selection If you want your phone to only search/connect to those frequency bands: Dial "*#546368#*600#">Field Test>Modemn Settings>Band Selection.

Scores Benchmarks

-Geekbench 5.4 Android 10 - 925 single and 3400 multi

-Geekbench 5.4 Android 11 - 905 single and 3100 multi

Antutu v8.5.7-Android 10 555,407

CPU-183,322

GPU-209,203

MEM-86641

UX-76,241

Antutu v8.5.7-Android 11 548731

CPU-183,413

GPU-193,602

MEM-90,823

UX-80,893

UPDATE

-----The method doesnt or no longer works as OTA does come up or gets forced, There are 2 ways now is to disable/force stop/freeze google play services and services framework to stop google from forcing the t-mobile updates but you will risk breaking push notifications from apps. The other method will require root following an xda user @crimsonrommer post https://xdaforums.com/t/v60-bootloader-unlock-and-magisk-root.4358785/ as rooting stops all ota updates from installing.

-----XDA will not let me delete this thread, mabey due to it working and not working as some wont get forced update and most will get forced.

--Please Delete this posts or ask me to re-edit if it violates or doesnt belong here.