Samsuing remote not working. when any button pressed, screen shows; "DMA is not connected"??????

HI:
You can check the remote with a celluar phone, put your phone in camera mode and point the remote at the phones camers, push a button on the remote and you should see a light from the remote, you can't see infred light but the camera of your phone can. If you see a light then the remote is working and transmitting, your may have a bad infared receiver on the unit you are trying to control.