Facing TV Problems? Ask a TV Technician.
Hi, Please grab the original LG remote and press MENU while the screen is dark. Let me know if the LG's native MENU will appear on the screen please (the MENU supersedes any external connections or settings).
This is a test we use in the field to determine if the TV or the cable box/HDMI connection is the root cause of the problem. Please reply back.
Do you need help with this?