Section 13.4 of my Phantom 2 Vision manual describes use of the RC Assistant Software and the need to connect the PC to the "micro-USB port on the back of" [the remote controller]. The manual goes on to suggest that if there's no micro-USB port, remove the back cover and find it there. My PTV581 controller has no such port, either outside or inside the controller. I'm confused - Do I have an improper cntroller or the wrong manual? Or just sloppy documentation?