spracing f3

So I recently started buidling my first quad, and have done everything mechanical except attach my receiver. My problem is that my motors do not show any activity, and that I can't flash my Flight Controller. I don't know if the first problem is the result of the second, but I am stumped. I have...

Dear all, i have problem with my new buil QAV-R220. Why the motors can't spin when i open the throttle but they can spin when i move sliding bar on clean flight interface (tab motor) From receiver tab, i can see every channel indicator moving when i move the transmitter stick. I have change...