- Check HDMI cable:
Make sure the HDMI cable is certified to give proper 4K resolution. - Check settings:
Ensure that HDMI input device is set to proper 4K resolution, typically it's set to 'auto-detect' by default. - Check content:
Verify the content you are streaming is actually 4K. - Check Internet connection:
Ensure you have a minimum of 25Mbps internet connection for streaming 4K content. - Check Firmware updates:
Check for any firmware updates available on the TV and upgrade if necessary.
