Determine your current device software version and check for updates.
INSTRUCTIONS & INFO
To view your software version, swipe down from Notification bar with two fingers, 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 the System section, then select About phone.
Scroll down to view the Android verison and Baseband version.
To check for software updates, scroll to, then select System updates.