Facing TV Problems? Ask a TV Technician.
Hello, This is either a lockup of the Mainboard, or the Mainboard's EEPROM has failed.
Please disconnect the set from power, then press and hold the power button on the TV itself (not the remote) for 15 full seconds and release.
Wait a minute then plug the set back in and turn it on. Let me know if you have the same problem.
Do you need further assistance with this?
If not, could you please click the 5 STAR RATING, at the top of the page for my efforts? It is my livelihood and you can follow up at any time if needed.