From your device's web browser, go to http://attwifimanager. Enter your Admin Password, then click Login
Note: Ensure that your device is connected to the AT&T Unite Express 2's Wi-Fi network. For more information, please see the Connect Devices to Wi-Fi or Connect PC or Mac to Wi-Fi tutorials.

Click Settings then click About. The Software Version will be displayed.

Click Settings then click General. Click the Software and Reset tab, then click Check for update to check for updates.
Note: If an update is available, follow the on-screen instructions to perform the update.