On 2/21/20 9:16 PM, Matt DeVillier wrote:
if you want to disable
the ME [...], hardware flashing is
mandatory).
You can also disable ME without external flashing with this patch:
https://review.coreboot.org/c/coreboot/+/37115
It will not unlock FD and you can't use more space for coreboot,
On Fri, Feb 21, 2020 at 12:25 PM Nico Huber wrote:
>
> On 21.02.20 19:16, Matt DeVillier wrote:
> > The x230 requires exploiting a vulnerability in an older UEFI version
> > in order to be flashed without external hardware (and even so, is
> > limited to flashing the 4MB BIOS region only; if you
On 21.02.20 19:16, Matt DeVillier wrote:
> The x230 requires exploiting a vulnerability in an older UEFI version
> in order to be flashed without external hardware (and even so, is
> limited to flashing the 4MB BIOS region only; if you want to disable
> the ME and use more space for the BIOS
Chromebooks are flashable from a live system because their firmware
doesn't software lock the BIOS region as part of the boot process,
like all properly implemented UEFI firmware should; instead they a
combination of a hardware (jumper/screw/CR50) and software (SPI flash
chip registers) locks
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