Intel (CS) Management Engine: Drivers, Firmware and Tools (2-15)

Ever since I’ve got my Asus Z170 ROG Impact, I have always received the following POST error:

“(A7) Me FW Downgrade - Request MeSpiLock Failed”.

After this it boots to Windows and everything works just fine.
But this error still bothers me…

And in the BIOS, under the versions information it lists Intel ME FW Version as 0.0.0.0

I already tried clearing CMOS, flashing newest BIOS (1902), installig Intel Management stuff and reseating everything, to no avail…

A thread I created over at Asus ROG forum directed me towards this thread, in order to flash the BIOS chip to a new ME firmware.

But I don’t quite understand how to work with the ME Info tools and how to fllash ME stuff…

Any ideas/suggestions on how to fix this error?