As Marty said I also dislodged the 10 pin socket of my D800. In my case I probably was the cause of the problem. The body shape of the D800 has less clearance on the left side of the socket than previous bodies. My 10 pin device pushed against the camera body and caused a sideways force on the socket. I believe this was the cause of my problem.
I explained this in post #39 in the first thread Marty listed. You can get directly to that item here.
If you are using a Nikon MC release, I can't see how it would be a problem.
Gary in SE Michigan, USA. Nikonians membership - My most important photographic investment, after the camera. D4, D810, D300 (720nm IR conversion), D90, F6, FM3a (black), FM2n (chrome) YashicaMat 124, Graflex Speed Graphic 4x5 My Nikonians Gallery & Our Chapter Gallery