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 which provide security as well as the ability to be modified by the physical owner of the device.
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 region, hardware flashing is mandatory). See: https://github.com/n4ru/1vyrain/ On Fri, Feb 21, 2020 at 11:45 AM pk <ggg...@gmail.com> wrote: > > Mr Chromebox uses a script to install Core Boot onto Chrome Book without > opening the laptop, or attaching a PROM; (CH341a, Ponoma 5250 Test Clip, F to > F Breadboard Jumper Cables.) > > Is using a Script without using hardware PROM, and so on, like Mr. Chromebox > does with a Chrome Book? > > Thanks for what you are doing. and for your replies. > > _______________________________________________ > coreboot mailing list -- coreboot@coreboot.org > To unsubscribe send an email to coreboot-le...@coreboot.org _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-le...@coreboot.org
