Well... I just could not resist to check it.... IT WORKS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I have a UE42F5500 TV, Firmware 1111 with camera STC3000/ZA and with the TV off I got into the service menu through INFO - MENU - MUTE - POWER, changed just the gesture control menu to "ON" (although I was so tempted to turn on also the "CAMERA Support" feature, but finally I did not do it) and after that, I turned off the TV and then turned on again with fingers crossed, wishing to do not brick the TV...
TV worked good, went to the Smart features menu... and there it was the MOTION CONTROL menu in grey color, I clicked on there, and appeared for just a second that the feature didn't worked, but then suddenly the camera turned on alone and the motion control cursor appeared in my TV!
It just works perfectly!!!
The only thing to consider is that I have the american version of the camera (STC3000/ZA), so, we should have a confirmation from somebody to use it with the European camera (STC3000/XC) to know if it works for other users tranquility!
I'm so glad that I finally can enjoy the camera for the purpose I bought it for, although I still keep thinking why the hell the Samsung guys had to turn off this option JUST for EU TV's... It makes no sense...