Hi,
I paired my U1 on bluetooth to work as the Samsung remote for a QN55S95B. Everything seems to work except the OK button, which would be the middle button of the original controller. It is a pretty useful button that will make the U1 useless.
Note that through IR, it seems to work fine by default, with the "OK" function assigned on the OK button, but it doesn't work on bluetooth.
In my case, IR is not an acceptable solution, it doesn't reach far enough and the IR sensor of my TV is partially blocked by my sound bar.
I've tried to assign almost every function on the OK button, with no success.
Regards,