Nikon D3400 Camera Firmware 1.10 Aug 31, 2016
... the firmware version - Turn on the camera. - Press the camera’s MENU button and select Firmware version from the setup menu. - The camera's A and B firmware versions will be displayed. - Turn off the camera. Installation Procedure: - Download and extract ... the memory card containing the firmware into the camera memory card slot. - Turn the camera on. ...