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corna / me_cleaner

Tool for partial deblobbing of Intel ME/TXE firmware images
GNU General Public License v3.0
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ME not disabled after ( -s ) (update flashed internally with FWUpdLcl) #332

Closed Gandalf098 closed 4 years ago

Gandalf098 commented 4 years ago

actually the AltMeDisable bit is set in the image, however, the engine still comes up normally (intelmetool -m shows everything works fine !)

nariox commented 4 years ago

The BIOS blocks writing to the ME region (on most cases AFAIK). You have to use an external flasher.

Gandalf098 commented 4 years ago

No actually ME updated works fine (it is a ME updater module that works in ME mode (it has the same permissions as the ME processor so it has access, however it doesn't allow writing a vandalized version of ME (used for updating)

anyway that wasn't the problem, Thanks

Gandalf098 commented 4 years ago

the problem is a ME with me_cleaner -S , doesn't update at all, however with me_cleaner -s, it actually changes only a single bit in the FD Descriptor, which doesn't get updated with FWUpdLcl tool

so thanks