Determine your current device software version and check for updates.
INSTRUCTIONS & INFO
To find the software version of the device, swipe down from the Notification bar, then tap All settings. Note: The images and steps in this tutorial reflect the latest software version (Windows Phone 10). For more information on the latest update available for your device, check att.com/softwareupdates.
In the settings menu tap System, then tap About.
The current software version will be listed under Device information.
To check if your phone’s software is the most recent version, from the settings menu, scroll to, then tap Update & security.