Remote control stops working after install smart things

Hello, after connecting the “SmartThings” app to my Samsung 50TU8000 TV, my remote control stopped working and I can no longer pair it in any way. I have already tried all possible procedures. The remote control works perfectly, as I can connect it to another Samsung TV that I own.

There is an official note from Samsung acknowledging this issue — Remote stops working after using the SmartThings TV app. I tried to follow the procedure described there, but the “SmartThings Guide” button does not exist under “About SmartThings”.

You may want to post on the Samsung Community Forum