Verizon Wireless was rolled out the Android update for the LG G3 smartphone earlier this year. Now, both T-Mobile and AT&T have decided to release the Android 6.0 Marshmallow update to this same phone. That’s mean the update will give a wide range of new features to the G3 smartphone on AT&T and T-Mobile.
Reportedly, the Android 6.0 Marshmallow update is available through the LG PC Suite, in case, you have T-Mobile carrier. The over-the-air-update for LG G3 on T-Mobile is also expected to arrive shortly. AT&T is offering G3’s Android Marshmallow firmware via an over the air update.
You might get lucky when you check manually, by going to the settings menu on your G3 phone.