Hello. I have a Scientific Atlanta ~ Explorer 4250C cable box and just upgraded my remote to the XR2 and it's not working.
I've troubleshot the obvious stuff ... Is there something that I'm missing? Does this mean I have to upgrade the cable box?
Do you mean it won't control the cable box? You may need to change the code set it uses. Press and hold the SETUP button until the light turns green. Press "A" for newer Comcast boxes, "B" for Motorola boxes, or "C" for Cisco boxes. I think your SA box may use the Cisco codes.