Help! My Ninebot One E+ won't start, and the wheel is very stiff / jerk-ish.

[Hunka Hunka Burning Love]

I have this bad feeling that the problem might be more than just a bad control board... that weird resistance when the battery and control board are disconnected is a little disconcerting.  I wonder when changing out the tire whether something may have gotten bent on the periphery of the motor?  It looks like it takes quite some effort to remove EUC tires.  How much of a possibility is there of damaging the motor in the process?

In any case, let's see how @veggies makes out with his repair...