I was flying it the other day and all of a sudden it became uncontrolable.This heli has never had any major crashes.I went through it top too bottom,nothing broke or bent. The one add thing that I did see is that when arming up the 4 in 1 I use to hear the 4in1 arming up and see the servos set.Now I dont hear or see the servos setting.I am starting to think that the 4in 1 is toast.I plug in the batterythe 4in1 flashes red a few times then to green. Is there a way to test the 4in 1?
Thanks Rich

if the 4-in-1 is solid green, it passed the self test. That's a good sign. With the heli powered up (but no throttle) do the servos move in response to your moving the right stick? That's an obvious indication as to whether things are working.