OK I tried every combination of plugging things in, and it's still broken. It will recognize my programming box, but no longer my ESC.
Guess I'm off to the LHS for a Viper VTX10 combo. I'm running a Viper VTX8 in my 4x4 SC and I like it, so I might as well consolidate instead of waiting for another HW ESC to arrive.
So long HW, nice knowin' ya lol.