To update the software
  1. Make sure your device is sufficiently charged and connected to Wi-Fi.
  2. From the device home screen, tap Applications.
  3. Tap Settings.
  4. Tap AT&T Software Update.
  5. Tap Check for Update.
  6. Follow the on-screen prompts to download and install the update.
  7. The device automatically restarts once the new software successfully installs.

To verify the update
  1. From the device home screen, tap Applications.
  2. Tap Settings.
  3. Scroll to and tap About phone.
  4. The device has the latest software if the Baseband version and Build number match the current update details.