Original post (2/5): LG is on a roll when it comes to updates, and the latest to join the Marshmallow club is the LG G4 model sold by T-Mobile in the United States.
Android 6.0 Marshmallow updates roundup – February 2, 2016
Following the release of the Android 6.0 to the unlocked G4 sold across Europe, in South Korea, on US Cellular and on Canada’s Telus and Rogers, LG has now made Marshmallow available on the T-Mobile LG G4 (H811) via its PC synchronization software LG Bridge.
Many users have reported being able to update their LG G4 to Marshmallow by connecting their phone via USB to PC and checking for an update manually. Note that an over the air (OTA) update is not yet available and T-Mobile’s support page for the G4 doesn’t yet mention yet the availability of the update.
As with other recent LG devices getting the Marshmallow upgrade, you’re looking at improvements for Knock Code, the implementation of the new app permissions model, a redesigned Silent Mode, Peek mode, and some visual changes.
If you’re into rooting and ROM-ing, the folks over at XDA-Developers already have you covered with a fully stock ROM available for flashing, as well as the necessary rooting methods.