Nikon D4S Camera Firmware C:1.31 Jun 8, 2016
... Fixed an issue that occurred with WR-R10 wireless remote controller firmware version 3.00. In rare cases, the camera would ... the WR-R10 was connected. Viewing the Camera Firmware Version - Turn the camera on. - Press the camera MENU button and select Firmware version in the SETUP MENU to display the ...