Firmware Update

AT&T LG G5 H820 Stock Android Marshmallow TOT firmware

Below you can download the AT&T LG G5 H820 Stock Android Marshmallow 6.0 TOT firmware

The software version of the firmware is H82011N – Android Marshmallow 6.0. You can use LG UP to flash the TOT firmware onto your phone.

PLEASE notes that the Qfuse (Anti-rollback) Version of this firmware is ARB01. If your phone’s current Qfuse version is ARB02, PLEASE DO Not try to flash this firmware.

Downgrade the OS of your phone may cause a hard brick.

Need LG UP DLL for LG G5 H820?

Unzip the LGUP_H820.ZIP, You will find the LGUP_H820.MSI. Double click the LGUP_H820.MSI to install the LGUP DLL for LG G5 H820.

You will also need:

  1. LG USB drivers
  2. LG UP Software

If you experience any issues with the firmware, please contact us at