kcable

I have a Nikon D800 purchased it in 2013 and use it professionally. One day in the studio the shutter did a soft click and then on the second click it opened the mirror. So what it does. You press the shutter release button and you get a soft click that does not engage the shutter but makes a sound. Hit the shutter button again and it does a full mirror up and down. Even though the second shutter release is a full mirror up and down it does not record an image to the CF card. Neither cards will record an image! The video does not work either. I looked into my clicks and have around 80,000 they say the shutter can go till 300k ? This happens in all modes including M which I use most of the time. I get an ERR that will not go away no matter what I do. I have replaced the batteries, cleaned the contacts, changed lenses, tried reset, changed cards, left batteries out for the night and tried again the next day. I took the camera to a local shop that has 25 years’ experience and works on Nikons. He said it was the shutter even though it seems to be working correctly? He replaced the shutter and the problem still exists. I got the camera back and he did not charge me because he could not repair the problem and said you will have to send it to Nikon. His thought was something in the computer or drivers in the camera. I had downloaded the latest Nikon D800 driver a few months before the problem. Anyone have this problem or any ideas on how to fix? I really don’t think it’s the shutter because the shutter works in all modes and speeds. It just has to be released twice and it does not record to the cards. I appreciate any help !!! Thanks Kevin kcablephoto@gmail.com