Determine your current device software version and check for updates.
INSTRUCTIONS & INFO
From the home screen, tap Apps. Note: The images and steps in this tutorial reflect the latest software version (Lollipop 5.0). For more information on the latest update available for your device, check att.com/softwareupdates.
Swipe to, then tap Settings.
Scroll to, then tap About device.
The software version will be displayed.
To check for an update, tap Software updates.
Tap Check for updates.
Tap OK. If an update is available follow the on-screen prompts.