I have the same problem. I am sending it in to Nikon for service. if you follow this link, it will take you to the online form to fill out. Just click on " online service form," and follow the directions:http://www.nikonusa.com/Service-And-Support/Nikon-Service-Information.page

Hope this helps

Yes,,,! reset the unit and place the battery while charging it, in order to function the source of the unit!!!