New Nikon Firmware Update Kills 3rd Party Battery Compatibility for Several Models
Nikon recently released a firmware update for its D3100, D3200, D5100, D5200, and P7700 cameras that maximized battery performance and allowed the camera to more accurately tell you how much charge you have left. But it seems there was an unintended (or maybe not so unintended) side-effect: third party batteries no longer work.