Re: [coreboot] Coreboot X230 step-by-step

[Alexander Couzens]

On Tue, 23 Feb 2016 08:33:16 -0800
Vadim Bendebury  wrote:
> I have not read the page in full detail, just curious: was it
> necessary to unsolder the chip, was it not possible to program it
> using flashrom from Linux command line instead?

It may be possible. the main problem is the lenovo bios update. It's
still unknown how it's updating the rom. But the lenovo protects the
bios region from writing. AFAIK there is a *scratch* region writeable
possible for bios updates.

best,
lynxis

Coreboot X230 step-by-step

[Kitestramuort]

On Tue, 23 Feb, 2016 at 6:33 PM, Alexander Couzens  
wrote:
> On Tue, 23 Feb 2016 08:33:16 -0800
> Vadim Bendebury  wrote:
> > I have not read the page in full detail, just curious: was it
> >  necessary to unsolder the chip, was it not possible to program it
> >  using flashrom from Linux command line instead?
>
> It may be possible. the main problem is the lenovo bios update. It's
> still unknown how it's updating the rom. But the lenovo protects the
> bios region from writing. AFAIK there is a *scratch* region writeable
> possible for bios updates.

http://www.zmatt.net/unlocking-my-lenovo-laptop-part-3/

This guy succeeded in (software) flashing a modified Embedded 
Controller firmware bypassing the crc checksum. I wonder if a similar 
method could be employed to flash the BIOS portion as well