Anyway, this problem has been haunting me for 12 hours and finally its fixed. The dust was hardly even visible, that s how sensitive it is. Sure enough I found the jack, blew in there and ran a 3.5mm (headphone jack) plug-in and out several times and now it works. Todays modern Smart Television from LG does an amazing job and producing clear, life-like pictures, but not being able to hear the music or dialog leaves you with only half the experience. If this “remote in” jack is blocked with dust, dirt, etc, then the TV thinks you have an external remote plugged in. If an external remote is plugged in, the IR Sensor (internal remote sensor) turns off. Posted by by andrey LG Service Remote Control Android (IRDA) c LG Service Remote Control : LG smart TV.

There is a “Remote Control In” jack on the back of TV’s for external wired remotes if you needed one. However I found this article that gave me the answer. And I rebooted the TV by unplugging and plugging. There are several other apps that you can use to change settings on your LG TV. This app doesn’t work on LG TVs that are not smart. I also took out the batteries and pushed each button for 3 seconds, didn’t help. Congratulations Now, you can change the settings on your LG TV using your smartphone with the LG ThinQ app. The invisible ray that comes out is visible to see digitally but not to the naked eye. However, I did replace the battery and looked to see that the invisible light on the front of it was working by holding my Droid up to it and doing a selfie with the camera. Also the Dish remote for the TV also didn’t work, meaning, it was in the TV not the actual TV remote. Last night we found that our TV remote stopped working.

Lg smart tv remote control not working