ok download 1.8.8 FW for P3P from dji.com site and format the microSD card with FAT or FAT32 and put only the bin file on the card and place in the
gimbal and turn on the Phantom. make sure you have the fan blowing full speed at the phantom while it is updating. then try binding again.
gimbal and turn on the Phantom. make sure you have the fan blowing full speed at the phantom while it is updating. then try binding again.