After my recent fly away, which I posted a description of in the flyaway thread, I managed to recover my Phantom Vision. I've re-assembled it, updated the controller firmware and am testing / observing to see if there is anything further that needs doing to get it flying. So far, I've been able to confirm that everything except compass calibration works. The Phantom Vision app is telling me that there are 0 satellites in range (strange for a big city) and the slow flashing yellow doesn't change to solid yellow when flipping the S1 switch repeatedly. Does anyone have any ideas as to what might be wrong? I've only done the calibration successfully in a big open field so far, but as its raining I did it under my verandah, with maybe 150 x 120 degrees of sky in line of sight to the drone.