I recently purchased a D600 online, the camera was in mint condition and was working with no problems at all. After snapping a few shots I noticed that the camera would not let me get into the playback area to review my pictures and would not let me access the Info section and the Menu section either. After I take a picture it lets me see the image but does not let me delete it or access any of the options stated above. I have already taken out the batter for a few hours and put it back in and formatted the memory card. I attempted to do a factory reset and that did not respond. I am at my wits end, are there any troubleshooting steps I missed or that I should try out. This is probably a simple fix but I am new to the photography world and any help would be appreciated, thanks!