Thanks @ksw520! This is so helpful and informative.
I have also managed to enable Intel AMT on my 7080mff with a CH341a programmer following guide [Guide] Clean Dumped Intel Engine (CS)ME/(CS)TXE Regions with Data Initialization . I am modding from BIOS 1.19.0 and surprisingly I didn’t have to bother about Platform Integrity related steps. I just followed the guide and flashed the modded dump back.
After flashing the modded dump back, I could enable MEBx hotkey under Manageability tab in BIOS settings. The entry of Intel AMT configuration menu will show up in F12 boot menu.
