I just fixed one by attaching it to my fully working Jupiter. Imagine my surprise.
KNC should hire me as an engineer, because I managed to fix it, while they are still chasing ghosts.
Now you should better understand my reluctance to send them:
Cool, don't send that one.

I can't close the lid, because of the cable

It is a very unsafe environment.
My point was: it can be fixed by firmware, because it is now obvious that each board likes different firmware.
If only they could do something different than asking to RMA.