AT&T is finally rolling out Android 6.0 Marshmallow to LG G4 smartphones under its network, specifically those bearing model number H810.

According to AT&T, the software update was released on Feb. 8 and will be made available to users through an over-the-air update that can be downloaded using a Wi-Fi connection.

The update, in addition to taking the LG G4's operating system to Android 6.0 Marshmallow, will also add the video calling feature. The update is a large one with a size of 917 MB, which is the reason why a connection to a stable Wi-Fi network is needed for it.

AT&T said that downloading and installing the update should have no effect on the data and settings of the LG G4. However, it is still recommended for users to first back up their files before initiating the upgrade.

LG G4 owners under AT&T should keep checking for updates in the smartphone's "Settings," or simply wait to receive a notification regarding the software upgrade. Tapping on "Continue" after receiving the notification will immediately commence the download of the update, with the LG G4 automatically restarting once the update is installed.

To verify the update, users can go to the "Settings" menu of the LG G4 and select the "About Phone" option under the "General" tab. The version of Android that should be listed there should be Android 6.0, first and foremost, with software version H81020n.

The user interface of the LG G4 will not be receiving any big changes with the upgrade to Android 6.0 Marshmallow, but the smartphone will be getting new features such as Doze mode, adoptable storage and improved do-not-disturb options.

The rollout of Android 6.0 Marshmallow to LG G4 devices under AT&T is a bit late, but it is just one week later than the rollout for the same operating system to LG G4 units under T-Mobile.

Recently, LG acknowledged a serious bootloop issue that has been affecting the LG G4. For no reason, the smartphone will reboot at random times and then get stuck in a bootloop, with no fix available.

According to LG, the problem was caused by a hardware defect, specifically loose contact between some of the smartphone's internal components. The company said that it will be repairing the affected units.