ClockSelect

Well, know: if you plug the USB cable, just click the button. Not so hard as a workaround, IMO.

Rez showing zero means the box resets when you try to fire, I could mean it goes below the 2.8V hardware limit. Doses it behaves this way with a fully...

May be the algo? Or TC max pwr limit? (Trying to guess, too)

Does the COM terminal says something? Does the box actualy resets when firing or not?

I'm not sure it's the same issue. If you fall back to power mode with heavy SS builds, you may try to disable the "Check" option in the coils menu...

You get a Low warning after you felt back to power mode with a rez < 0.1Ω; are you sure you disabled the check at the time you got the...

Thanks for the video. I think I see the problem, in your case. Below 0.12Ω, the firmware limits the power to enforece the 25A limit, but it may exceed it...

Could you try to use the COM terminal of the NFE 5.1 and see what it says when this shortage occur? It would be informative. (Beware, NFE 6+ do not...

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@dabugen Give it another try.