No luck.
No methods work.
All bios images I use are alive and well with ME portion visible, I can check with UefiTool.
But whenever I flash the chip, the ME portion is empty again and I see N/A in bios.
I can use flashback, afudos or external programmer.
I even used an old ch341a I had with asprogrammer. Same.
Tried to edit a dump, unlocking read/write of all regions (following the guide), it went well.
Then used ftk9 guide from Coderush, apparently went ok.
Guess what?
N/A after rebooting.
I think something is wrong at hardware level.
Pretty much like what happened to this guy: