Determine your current device software version and check for updates.
INSTRUCTIONS & INFO
Swipe down from the Notification bar, then select the Settings icon. Note: The images and steps in this tutorial reflect the latest software version (Android 7.0). For more information on the latest update available for your device, check att.com/softwareupdates.
Scroll to and select About device.
Scroll down to view the Android version and Baseband version.
CHECK FOR SOFTWARE UPDATES: Scroll to and select Software update from the Settings menu.
Select Check for updates.
Select OK. If an update is available, follow the on-screen prompts. Note: If an update is available, follow the on-screen instructions to perform the update. If an update is not available, select OK.