Select > Update from udisk and select the firmware file. 7. Fixing HDMI Handshake and Display Issues

The Ultimate Troubleshooting Guide: How to Fix the ZTE ZXV10 B820CA15 Android TV Box

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: Locate the tiny, recessed Reset button on the back or side panel of the chassis.

If you can't navigate, plug a USB computer mouse into the box's USB port to access settings. Disable "Device Info Aid":

to allow the capacitors to drain completely. Disconnect the HDMI cable from both the TV and the box. Plug the HDMI cable back in securely. Reconnect the power cord and let the device boot up. 2. Resolving Wi-Fi and Network Connectivity Failures

Use a USB mouse plugged into the box to navigate to Settings > Accessibility > Device Info Aid Service and turn it OFF. 5. Advanced Fix: Firmware Reinstallation