To view the camera firmware version or update the camera firmware, select [Firmware version] in the setup menu.
Update your camera as follows:
Download firmware from the Nikon Download Center using a computer: Check the Nikon Download Center for new firmware. For more information, see the firmware download page. https://downloadcenter.nikonimglib.com/
Download firmware via the SnapBridge app on a smart device: If the smart device has been paired with the camera using the SnapBridge app, the app will automatically notify you when updates become available, and you can then download the update to a camera memory card via the smart device. For more information, see the SnapBridge app’s online help. SnapBridge may not display the notification at the same time that updates are made available on the Nikon Download Center.
Download firmware to the camera from Nikon Imaging Cloud: If the camera receives a firmware version update notification from Nikon Imaging Cloud, [Update now (Nikon Imaging Cloud)] appears in the [Firmware version] menu. Highlight [Update now (Nikon Imaging Cloud)] > [On] and press the multi selector right to download the firmware to the camera via the Internet. The update will start automatically after the download is complete.