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 select 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 select System.
Select About.
Select More Info.
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 select Update & security.