I spent all thursday last week and lots of last weekend getting the brushless upgrade of the walkera 4#3 working. I couldn’t and then I ordered another ESC. I read these ESCs sometimes cause trouble. I also did some soldering on the ESC. Perhaps this damaged the ESC. When I had finished there was no way the ESC could make the motor go.

smiley

Now we will see how it works when I get the new ESC.