I am working with Charles from Lacroix, as well about a maybe similar issue:
Right after triggering the e-stop pin on my 100D, the board could not turn off. I don’t even get a flicker of light. The 100D lights stay on (on the board) and the power button turns red and stays that way. Also, the 100D starts heating up significantly next to the power input (where the anti-spark circuit is located).
If I unplug and plug the power back in, it is still the same: stays on / red pwr switch / heating up. I can still get into the vesc app or the stormcore app, and they both show 38V, when my battery is actually 58V. Something is getting fried in our boards and I really believe that it is the antispark switches.
I just got my replacement 100D today, and everything was ok, until I triggered the e-stop pin and then the board died just like the first one. Obviously, if I knew that is what killed the first one, I would have never tried to activate the e-stop, but I have it on a scooter so I use the e-stop as an electronic lock.
Hopefully you get this fixed. I would love to know if your issue is the anti-spark circuit and if you might know how it got affected (like my e-stop sitiuation).
Thank you!