Facing TV Problems? Ask a TV Technician.
Hello, Please disconnect the TV from power, then remove any HDMI connections from the back of the set. Press and hold the power button on the TV itself (not the remote) for 15 seconds and release. Wait a minute then reconnect the cables and plug the TV back in. This should reboot the set so that you can then use the remote. The symptoms you're having indicate the Mainboard has locked up. If you still have the same problem then please reply back with the full model number off of the back of the TV and also how long you've owned the set for.
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