CC bec on mamba max for 4s

[simplechamp]

The USB is probably easy to fix, most likely a bad connection somewhere. You can open it up, go in there with a continuity tester, and find the problem yourself, or send it back to Castle. If your warranty has expired already you might as well try to fix it yourself first. If you still have a warranty might want to think about letting Castle fix it.

This is probably a dumb question, but is there any chance the USB on the controller is fine and the problem is in the USB cable or your PC?