- Check your HDMI port:
Make sure that your streaming device is properly plugged in. Ensure that your HDMI cable is connected firmly to both your Smart TV and streaming device. - Check the power source:
Make sure both your streaming device and Smart TV are plugged in to a working power source. - Check your other TV settings:
Consult the TV troubleshooting guide to make sure all of your TV settings are properly configured. - Restart your devices:
Try rebooting both your Smart TV and streaming device. Unplug each device, wait 10 seconds, and then plug each back in. - Disable power saving mode:
Power saving mode can cause your TV to enter a low-power sleep state. Make sure power saving mode is turned off. - Update your device:
Check for any available updates to your Smart TV and streaming device. Make sure you are using the most up-to-date firmware.