I have built a f450 with the new Naza-M Lite and I am using a Turnigy 9x transmitter and receiver. Everything is hooked up and working when connected to my computer, but when I disconnect it and try to start the motors nothing starts. after 1 second of holding it in the start position the led will flash yellow 2 times before going back to a normal yellow flash. If someone could help me that would be great.

my battery is a 2650mAh 2.65a

Problem solved, the problem was the board had be fried at the positive connection. The fix was to bridge across the separation.