To reset a U-verse set top box showing a red X on the screen after a power failure, first, unplug the power cord from the back of the box. Wait about 10 seconds, then plug the power cord back in. Wait for the system to reboot! This process usually resolves the issue. If the red X persists, you may need to check for service outages or further assistance.
Asked Apr 16, 2026 2:07 PM