- Please make sure all connections are properly secured and correctly plugged in.
- We recommend performing a power-off restart by unplugging the device completely and leaving it powered off for at least 20 minutes before turning it back on.
- If restarting does not resolve the issue, try restoring the device to factory settings (press and hold the mute button on the remote control for 5 seconds, or use the app to select "Restore Factory Settings").
- If the above solutions do not work, we suggest upgrading to the latest firmware version. Please provide your current firmware version and SN (serial number) to our customer service at support@ultimea.com for a firmware update push.
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