Hello guys after I have been spending sometime trying out dlls for lgup, I have finally found a way to downgrade my v60TMO20f(as for me was antirollback v0) android 11 firware back to v60TMO10x android 10.
-LG firmwares kdz from
https://lg-firmwares.com/ (seem to have euro and tmobile)
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
-Dial "
*#*#244773825625#*#*" onto your dialar to check anti rollback
-First youll need to download and install LG UP 1.16 [Original from LG] - No patched - lab version
-Second 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.
-ADB - go to settings-about phone-software info- keep tapping build number to enable developer options then go into developer options and enable usb debugging. You can use command "pm uninstall -k --user 0 xxx" (where xxx means typing in the package)" uninstall the packages = com.lge.updatecenter ,com.lge.android.atservice , com.lge.appbox.client. Mabey also do com.lge.lgfota.permission, com.lge.appbox.installer and com.android.dynsystem. You can also use ADB App control founded on another xda threadas it will be easier so you dont have to type anything but search and select uninstall and you can also restore the uninstalled system apk as well.
https://forum.xda-developers.com/t/...app-manager-debloat-tool-for-android.4147837/
Edit- "Optional"- use adb to uninstall com.google.android.setup wizard and com.google.android.apps.restore as I noticed I do get setupwizard loops to login to google account and may have a chance of triggering the software update as well since it will initialize "checking for software update". You will run the risk of not being able to restore, but the good side is youll be able to stay with your firmware version you want. Forgot to mention that standalone 5G came with android 11 update for the v60 but I dont really need that as there is still non-standalone 5G.
Edit #3 out of topic "Benchmark"- so the android 11 brings down the performance by quite a bit using geekbench and antutu. This is for performance wise if your looking for that as a reason for downgrading also.
-Geekbench 5.4 Android 10 - 925 single and 3400 multi.
-Geekbench 5.4 Android 11 - 905 single and 3100 multi
Antutu latest v8-v8.5.7- Android 10 554,000 score
Antutu latest v8-v8.5.7-Android 11 543,000 score
-Please delete post if this was a repeat or for whatever reason.. I have only done this on my tmobile variant that got the forced ota to android 11 20F