I finally got around to setting up my brand new mamba max. I plugged it in, it prompted me for a firmware update. As soon as I did it, the ESC would not arm. I set auto lipo and I hear the 2 beeps (2s), but after that , the red light just stays on, it never gives the arming confirmation tone.

So what I do is drop it down a few version. Now it arms but it wont move. As soon as I give it throttle, I get a high pitch squeal . I can even see the red/white/black wires move, but the car wont budge. I see the pinion "tweak" a little, but thats it.

Is this a common issue when people update their mamba max (not monster?) Is there anything I can do?