G850UM10o: AT&T LG G8X ThinQ Software Update with March Security Patch

AT&T LG G8X ThinQ LMG850UM Software Update

AT&T is now pushing an update to its LG G8X ThinQ LMG850UM  to version G850UM10o. The update weighs in at 199MB and includes the March 1, 2020 Android security patches.

A&T LG G8X ThinQ LMG850UM Software Update

  • Release date: March 23, 2020
  • Android version: 9.0
  • Security patch level (SPL): March 1, 2020
  • Baseband number: PKQ1.190522.001
  • Software version: G850UM10o
  • File size: 199MB


The update is now going out over the air! If you’ve got a LG G8X ThinQ and haven’t yet updated, you can manually check for the update by going into Settings > General tab > Update center > System update > Check for update.

For your information, The Update is available via FOTA (Firmware over-the-air) only. AT&T LG G8X does not support software updates through the LG Bridge tool.

The Update builds G850UM10o is still a maintenance update based on Android 9.0 Pie. The AT&T LG G8x ThinQ is expected to receive the Android 10 OS Update sometime in the future.

Source: att

FAQ: Where I can download the AT&T G8X ThinQ LMG850UM Stock Firmware?

Sorry, there is no way to download LMX320AA Firmware from LG server because AT&T LG phones support FOTA Update only.

AT&T hosts the firmware on its own server, You can ask other AT&T G8X ThinQ users to capture the OTA Update download URL.


A&T LG G8X ThinQ LMG850UM Issues

A&T LG G8X ThinQ is not supported by LG Bridge. So you will not be able to fix your phone with the LG Bridge tools’ Update error recovery feature.

By the way, A hard reset or master reset can fix almost all software issues of your A&T LG G8X ThinQ smartphone.

Learn how to reset A&T LG G8X ThinQ back to factory default settings, please read A&T LG G8X ThinQ User Guide here.