Acer Veriton N4640G

[npcnr266]

Hey guys, i've tried to mod the BIOS for over a week now and im close to giving up. I cant get around the BIOS-Guard. 

I want to enable TDP and RAM Settings. Additionally i need to disable bidirectional ProcHot, because of a broken VRM-Temp sensor.
Update file from Acer: BIOS R02-B1

Full story:
I tried to edit with UEFI Tool (0.28 and 0.25) which dosent care about BIOS-Guard. Error while flashing, image incorrect.
Tried to update microcode with MMTool. Error while flashing, image incorrect. Same thing with AMIBCP. 
I read the full 16mb with a soic clip and flashed it back, Image incorrect. Now the mainboard is dead. I orderd another one, because i need a small machine. 
But its the same machine so i try to restore the defective one. 

Long Story short:

Can someone please make the changes for me?
Or explain to me how i get around this sh*tty BIOS-Guard.

Sorry for my bad english.
Thanks in advance.

Edit: I saw that every Menu Point is doubled (main/advanced/boot etc). An explanation for this would be cool too.