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 (Android 8.0.0). For more information on the latest update available for your device, check att.com/softwareupdates.
Scroll to and select System. Select About phone.
Scroll down to view the Android version and Baseband version.
CHECK FOR SOFTWARE UPDATES: From the System screen, select Software Update.
Select Check for Updates. If an update is available, follow the prompts to update your device. If the device is up to date, select OK.