Check the original bios first. Don’t try everything you might find without knowing where the error is!
[EDIT] ME region is unreadable, that might prevent it from boot.
Try this file- ME reconstructed/clean config, other parts unchanged:
reco2clm.zip (5.3 MB)
Static parts of your bios region were identical to update, ME region provided with update has one difference in config for pavp, don’t think this is relevant.
The cleaning job seems to be done well, but I don’t think it’s relevant here.
Still unclear if EC firmware got updated…