Walker QR X350 Main Control Board Upgrade

1.If flying time is less 9 mins,then can use the newest software V.123(only for walkera battery).

2.QR X350 control program upgrade tool including UP02 cable and  UP02 Adapter 

3.Connect the blue single wire to signal wire of update access of flyer(blue to white),and connect yellow single wire to power wire of update access of flyer(yellow to red).Connect black single wire to ground of update access of flyer