I have a Q7F 55" . Everything works perfect, except that I can't turn it off with remote control! I have to turn off the TV by the physical button under the Samsing logo.
I have tried these all:
* Changed the batteries
* Reset the TV
* Updated the TV firmware
* Reset and re-paired the remote
I also have a Samsung soundbar, and to make sure there is no interference, I disconnected and turned off the soundbar and its remote control.
I tested the remote control with another Q7F and it can turn it off!
Is there anything else I should do to make sure the TV (or its control box) is defective?