I am new to the world of DJI and drones having gotten a new Phantom 2 Vision as a present. I went thru the assembly process as per documentation. I find that I keep getting a slow blinking yellow light whenever I turn on the phantom. I have tried to do the calibration either thru the S1 switch being toggled (this never seems to work) and thru the DJI app on my iPhone. In either case, the calibration doesn't seem to want to take. Does anyone have any ideas? I have already updated the latest firmware on the Phantom.