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 ggg397@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.
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