No worries! Always glad when new people join this underground community ;) The blinking red light means the battery itself is compromised in some way. Try un-plugging the battery from the speed control unit (circuit board with XT-60 connector) and see if the light starts blinking blue. Blinking blue...

Interesting, what has your experience with the SPIN scooters been?

Do they have a more generalized firmware / can they be used interchangeably with components from non-rideshare models?

I recently got a chance to take a closer look at Lyft scooter I was able to purchase at a police auction! I would just swap the internal controller with my FreeFlight ARC2000 motor controller, however, I figured I'd look into writing firmware like I've done with a handful of Ninebot ES2's and ES4's....