I recently purchased a Nikon d3100, and it was working perfect but something went wrong yesterday! it wont start.i tried charging the battery and everything but it just wont start! the battery is working perfectly fine, i tried it on my friend's Nikon d3100 and it worked! i tried putting her battery into my camera.it didn't turn on! please help.
>>> Why my Nikon d3100 won't turn on!