HI.. I'm having problems with my naza getting a lock.. Everything was fine and getting a full lock every time and I was hovering approx. 20ft and it just dropped to the floor on rocks as the soldered wire came off.. I broke 2 props and the compass pole. The compass looks ok no cracks, however now it struggles to get a lock. I can do all the compass calibration with no problems but all I get now is 3 red lights and 1 green where previously I had all green and hardly gets a lock so now so it just drifts.. Any ideas why its doing this is there any way of testing this. Thanks Shaun