Before you can upgrade your board firmware, you need to dowload and install the DFU driver on your PC. You can follow the instruction here to install Maple DFU drivers, or just follow this simple steps:
- download the driver here;
- unzip the driver package;
- disconnect the battery from VRGimbal;
- connect the PRG jumper;
- connect the board to your PC via USB: the “New Hardware Found” window will appear;
- search manually the driver: select “Maple_003.inf” from the driver folder;
- now you are ready to upgrade: see the Firmware upgrade page.
VR Gimbal 