Determine your current device software version and check for updates.
INSTRUCTIONS & INFO
From the home screen, swipe down from the Notifications bar. Note: The images and steps in this tutorial reflect the latest software version 5.0.2 which became available on 4/15/2015. For more information on the latest update available for your device, check att.com/software updates."
Tap the Settings icon.
Tap About phone.
Tap Software info.
Android version will be displayed.
From the About phone screen, tap Update Center.
Tap Software Update.
Tap Update now to check for and download new software versions. Note: To see if there is an update available for your device, check att.com/software updates.