Solved! Go to Solution.
My issue is very similar even though it was my cable box and Xbox One S that the universal remote stopped working at the same time. They are also giving me the run around.
Update: Issue resolved! Samsung sent out a technician for the second time and I explained my theory that the TV is having a problem communicating with the universal remote to tell it what codes it should be using for the eternal devices. He agreed and decided to replace the IR sensor on the TV. Once he replaced the part and put the TV back together the universal remote started to work like it originally did with both my Xbox and cable box. I hope this helps anyone who is having the same issue and no other troubleshooting worked.
Andrew N - How did you get a Samsung tech to come to your house? Who/how do you contact? I'm wondering if we all have IR sensor failures. This has been a really frustrating experience.
This worked for me:
1. Turn off TV
2. Unplug HDMI cable of the device that the remote has stopped controlling.
3. Unplug the power to device (i.e. cable box, TiVo, whatever) for a couple of minutes, then restore the power to device.
4. Turn on TV
5. Now plug HDMI cable for device back into TV's HDMI input.
6. The TV will respond as if this is an initial set-up for this source, and run you through the complete registration procedure. If the TV God is with you, and you light a candle, your smart remote will once again run your device; (or at least for an undetermined period of time when it may once again stop unexpectedly and without explanation, and then you can run through this procedure again). Hope this helps.