I haven't used my camera for a couple months but I recently pulled it back out and when I turned it on the setting were reset and I needed to set the time zone again.
After doing that, I realized I hadn't inserted the SD card so I turned it off and put the one I had on the side for it, this is the one i have specifically for this camera so I e used it many times. When i turned it back on, not only did it take a few moments longer but the setting were reset again. It told me the card could not be read.
I took the card out and formatted it with my computer as I know I need to sometimes but when. I did put it back in, I got the same thing as the first time. I took it out and tested it in my other Nikon's and had no issues with the others. Turning the camera on without the SD card this time didn't reset my settings or make it take longer.
I even tried with other SD cards to see if it was just that one but any SD card is having the same affect on the camera. Any idea why?