yesYou said " Battery checks ok."
Does that include the controller's batteries?
That's why drone won't take off.No. The 4th prop did not turn
Thanks. My problem now is none of the propellers move. This is what I am trying to solve.That's why drone won't take off.
Needs all 4 working in sync.
I've never built a drone. No idea exactly how a drone works mechanically.
My layman guess would be : the 4th motor is cooked.
Your drone has 4 motors. 2 of them are made to turn clockwise (CW) . The other 2 counterclockwise (CCW).
You need to know which motor to buy for replacement. CW or CCW.
I don't know how to get motor replacement for you, nor do I know how to install it. I don't have that kind of knowledge.