-------- Originalnachricht --------
Betreff: [coreboot] Re: Installing coreboot with SeaBIOS
Von: Peter Stuge
An: coreboot@coreboot.org
Cc:
bernd1-1@web.de wrote:
> ... "tl;dr Go!" ...
TL;DR is short for "Too Long; Didn't Read", sometimes used to place the
most important message at the very top for limited capacity readers.
> ... "AFAICT" ...
"As Far As I Can Tell"
> Should I use this tutorial, that applies to the ThinkPad X200 where I
> got a ThinkPad X220, for opening the housing and figuring out what
> screws to open in order to get access to the chip or is there one for
> the ThinkPad X220, too
The hardware is not identical but will probably be similar-ish. The
official X220 Hardware Maintenance Manual by Lenovo is available here:
https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/0a60739_04.pdf
Chapter 8 on Page 67 is where disassembly starts, you eventually want
to complete the first step of 1120 "Removal steps of system board"
but quite possibly you don't actually need to perform every single
step before even though the manual says so, in particular I doubt
that you actually have to remove the LCD assembly.
It's also possible that you don't need to remove the system board
from the case at all, to access the flash chip. It depends on which
side of the system board it is mounted on and I unfortunately don't know.
If you're lucky it's on the top side of the board and you only have to
go through step 1090 to remove the keyboard bezel.
You may have to experiment to get to know your X220. It might take up
to a full day but hang in there, it's a great learning experience.
Keep in mind that the maintenance manual will never mention the BIOS
flash because Lenovo does not intend for anyone to do component level
work on the system. Their technicians must only ever consider the
system board as a whole, quite wasteful btw.
You can of course compare the maintenance manual both to the X200
instructions on the web page and to your actual hardware to figure
out how much overlap there is, either beforehand or as you go.
Take all the blahblah about having to be trained and certified and
whatnot with a grain of salt. It's your hardware, you can do what
you want with it, and taking it apart is highly admirable!
Viel Erfolg and in case you get stuck you can always ask questions.
Kind regards
//Peter
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