Not sure what his problem was, but Litchi is great. I prefer it over DJI Go. Lookup Phantom Film School if you want to know more about Litchi. Lawrence is great.
Mark, I am trying to get my F550 up and working with Pixhawk. Did you plug all three wires from your ESC's into your Pixhawk? How did you test everything? Would you mind telling me the steps involved (calibrations and such) Thanks!
Mine (Phantom Charger) was doing the same thing and the Lipo switch had been bumped. I moved it to the left (Lipo) and it (the Fatshark Battery) started charging normally.