My Smart TV is not recognizing my HDMI input, how do I fix this?

1. Check if the HDMI cable is firmly connected
2. Check if the HDMI source is powered on
3. Try changing the HDMI input mode on the TV
4. Ensure that the TV is on the correct source/input
5. Try using another HDMI cable, input port, source device, or TV
6. Restart the source device and TV
7. Contact your TV manufacturer for further support