Hello Michael,

As promised (and I ALWAYS keep my promises):
Drivers for various WIN OSes:
http://www.driverscape.com/manufacturers/lenovo/laptops-desktops/
http://www.driverscape.com/manufacturers/lenovo/laptops-desktops/27672mg/36158

BIOS upgrade for WIN7:
http://support.lenovo.com/de/en/products/Laptops-and-netbooks/ThinkPad-T-Series-laptops/ThinkPad-T400?tabName=Downloads&linkTrack=Mast:SubNav:Support:Drivers%20and%20Software|Drivers%20and%20Software&beta=false

As my understanding is, you should put some blank HDD, install using Coreboot with SeaBIOS payload (emulating legacy BIOS) WIN7 (32 or 64), and then download .iso with latest BIOS update/upgrade for T400 here, then make legacy USB .iso bootable CD/DVD or USB:
http://support.lenovo.com/de/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t400/downloads/DS014937

Please, report back here the results!

Thank you,
Zoran

On Wed, Feb 1, 2017 at 9:50 PM, Michal Widlok <michalwd1979@gmail.com> wrote:
Thank You for quick reply.
Ron - I've lost original bios, my mistake. I hoped nobody would ask
and spare me saying "I'm a moron" :-).
Zoran - This is TYPE 2767-2MG S/N R80DCTZ6 09/09. The one with
"switchable graphics" (Intel and Ati) onboard. Is any more info
required? Anyway since lenovo provides single update for every T400
model then it might not matter - or I am very wrong.

Michael Widlok

On Wed, Feb 1, 2017 at 9:20 PM, Zoran Stojsavljevic
<zoran.stojsavljevic@gmail.com> wrote:
> Hello Ron,
>
> No worries. I'll try to find the original BIOS for Michael, if Michael gives
> me exact model of Lenovo T400.
>
> Don't you agree? ;-)
>
> Zoran
>
> On Wed, Feb 1, 2017 at 8:41 PM, ron minnich <rminnich@gmail.com> wrote:
>>
>> did you save the bios before you flashed it?
>>
>> On Wed, Feb 1, 2017 at 11:11 AM Michal Widlok <michalwd1979@gmail.com>
>> wrote:
>>>
>>> Hello,
>>>
>>> Is it possible to flash back original BIOS from coreboot system on
>>> lenovo T400? I would like to play with tp_smapi module (battery checks
>>> at most). My board is already equipped with a connector from FLASH
>>> chip to Raspberry pi, so it can be hardware or software method.
>>>
>>> I've red about bios update from bootable CD or USB stick - will this
>>> method work with coreboot?
>>> Best Regards,
>>> Michael Widlok
>>>
>>> --
>>> coreboot mailing list: coreboot@coreboot.org
>>> https://www.coreboot.org/mailman/listinfo/coreboot
>>
>>
>> --
>> coreboot mailing list: coreboot@coreboot.org
>> https://www.coreboot.org/mailman/listinfo/coreboot
>
>

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