Need some help! Just sold my Nikon D3 on eBay that was in mint condition, and the new owner is saying the LiveView function is not working, but everything else is. He called Nikon and did a factory reset, and still LV didn't work. Please let me know as soon as possible!!! What must be wrong if only LV isnt working but everything else is!!

Thank you so very much, any help is appreciate!