My name is ***** ***** certified professional with over 10 years experience. I will be glad to assist you with this.
I am sorry to hear that you are having this issue.
Do you mean that the remote control has stopped working?
okay, try these steps first.
Remove the remote the batteries and push each button for 3 seconds, Then reboot the TV by unplugging and plugging. Replace the remote batteries with new.
If that fails, there is a “Remote Control In” jack on the back of the tv that is used for external wired remotes. If an external remote is plugged in, the IR Sensor (internal remote sensor) turns off. If this “remote in” jack is blocked with dust, dirt, etc, then the TV thinks you have an external remote plugged in. Try cleaning the jack with canned air, then insert a 3.5mm (headphone jack) plug in and out several times.