Determine your current device software version and check for updates.
INSTRUCTIONS & INFO
VIEW SOFTWARE VERSION: Swipe down from the Notification bar, then select the Settings icon. Note: The images and steps in this tutorial reflect the latest software version 8.0.0. For more information on the latestupdate available for your device, check att.com/softwareupdates.
Scroll to and select About phone.
Select Software information. Android version and Baseband version will be displayed.
CHECK FOR SOFTWARE UPDATES: From the Settings screen, scroll to and select Software update.
Select Check for updates.
Select OK. If an update is available, follow the on-screen prompts.