Re:Mac OS High Sierra automatically checks EFI firmware each...
by microcolonel on Sunday September 24, 2017 @09:35PM
(#15327505)
If secureboot is functioning, then the wrong firmware wouldn't be installed to begin with by the time OS X gets to it, because it would not be allowed to run.
The correct solution to this is secureboot. No need for ME shenanigans.