The mobile carriers in the US have just begun the One UI update showdown and rolling it out for Galaxy S9 devices but look like AT&T want to go ahead and now rolling out One UI update for Galaxy Note 9 flagship.
This update brings the latest Android 9.0 Pie Operating System, Samsung’s ‘One UI’ design and user interface, and the January 2019 security patch.
Samsung Galaxy Note 9 on AT&T receiving this update as build version N960USQU1CSAA and weighs 1831.41mb. If you want to check this update manually, head into Settings > Software update.
Some of the users on Reddit have reported that this update is downloading in little slow speed so be patient while downloading it. As for now, we can expect that other carrier will soon roll out the same update for Note 9.