Thanks for your notice. It’s my backup laptop so I take the risks.
As you can expect, the system doesn’t boot up after flashing modded bios version. Basically it doesn’t show anything although the power led is ON. Now I’m ordering a CH341a kit to recover the bios.
May I ask what should I do to get rid of trouble if I still want to flash the mod bios version?
Edit: I found the answer for myself!
I have done a research regarding Intel BootGuard and then compared to information extracted previously using “MEInfoWin64.exe -verbose” cmd:
FPF ME
--- --
Force Boot Guard ACM: Enabled
Protect BIOS Environment: Enabled
CPU Debug Disabled: Disabled
BSP Initialization Disabled: Disabled
Measured Boot: Enabled
Verified Boot: Enabled
Key Manifest ID: 0xf
Enforcement Policy: 0x3
According to Lost_N_BIOS, when “Measured + Verified Boot both enabled on left/FPF side” then “there is nothing you can do except replace PCH with one that is clean and does not have burned in signature to FPF fuses”.
I also made a double check by UEFITool NE which shows up that the Volume containing DXE driver is marked in Yellow and every section in the Volume are marked in Cyan, meaning “every byte is covered by one of vendor’s chain-of-trust code entry”. Basically, the BIOS cannot be edited in any way.
I think that’s the end of my modding bios project. I wish I could dig deeper before flashing the mod version.
Now I focus on recovering my bios. Again, thanks for your warning!