Nikon has released new firmware updates to improve the pairing and connectivity between the Android version of its SnapBridge app and the Nikon D3400 and D5600.
How to check your Nikon’s firmware version
- Turn the camera on.
- Press the camera MENU button and select Firmware version in the SETUP MENU to display the camera firmware version.
- Check the camera firmware version.
- Turn the camera off.
Via Nikon Rumors