Fujitsu newer 6x4 BIOS master password (U758)

[thenice2021]

Hello!

Does anyone have a clue how to calculate the newer Fujitsu 6x4 master passwords starting with "203c-d001" (for example 203c-d001-2f2e-2878-d5dc)? on Lifebook U758?

The Python tool crashes with an error (ValueError: invalid literal for int() with base 10: 'd0012') and as far as I unterstand it strips the 4 first characters (first block) containing the one and only hex/alpahnumerical char.
So it expects only numbers in

numbers = (int(code[0:5]), int(code[5:10]), int(code[10:15]), int(code[15:20]))

I already tried several combinations of converting the blocks from hex to dec, putting only the last 16 chars directly into the array etc. but no success.

Since it's known that the resulting password is in the same scheme (also 8 chars alphanumerical), my hope is that the used XOR key is also the same.

I attached a dump of my BIOS ver. 1.19. It is an InsydeH2O BIOS.

Thanks!

TNI

[thenice2021]

Re: Fujitsu newer 6x4 BIOS master password (U758)

Hi again,

my new idea is - since it is still possible to boot an OS - to overwrite the BIOS without passwort clearing all the settings.

But: DeskFlash, the utility provided by Fujitsu, denies the /PWD param apparently if there is a password set already.

My hope is that the DOS version doesn't do this and there is a chance that this is indeed the case: http://d-minds.com.ar/documents/blog...e-h2o-efi-bios

But it looks like the default setting for Lifebooks this age is that only UEFI boot is possbile. And I didn't find a way to boot FreeDOS in EFI mode yet

It seems that it is possible to use "H2OFFT-Wx64.exe" in same way as the Fujitsu provided "H2OFFT-D.exe" and modifying params from an INI file to eliminate the password. But Fujitsu delivers DeskUpdate instead ...
https://morethanpatches.com/2019/05/...syde-firmware/

Does anybody know if "H2OFFT-Wx64.exe" does also work with Fujitsu and where to get it from?

Thanks,

TNI

[SMDFlea]

Re: Fujitsu newer 6x4 BIOS master password (U758)

use the fujitsu unlocker tool https://www.badcaps.net/forum/showthread.php?t=79974 .

http://dogber1.blogspot.com/2009/05/...ered-bios.html

[thenice2021]

Re: Fujitsu newer 6x4 BIOS master password (U758)

use the fujitsu unlocker tool https://www.badcaps.net/forum/showthread.php?t=79974 .

http://dogber1.blogspot.com/2009/05/...ered-bios.html

Thanks for your reply but this does not work with the newer scheme. It's the same script.

[enezer1970]

Re: Fujitsu newer 6x4 BIOS master password (U758)

Hi

Did you find any solution for that script ?
Are you able to handle 6x4 hex hashes ?

Eric

[evserv]

Re: Fujitsu newer 6x4 BIOS master password (U758)

Yes, there is a solution, but it is not freely available.

[enezer1970]

Re: Fujitsu newer 6x4 BIOS master password (U758)

Do you have any recommended web site for that ?

[evserv]

Re: Fujitsu newer 6x4 BIOS master password (U758)

According to the rule of the forum, I cannot provide links to paid services.
Search the internet.

[SMDFlea]

Re: Fujitsu newer 6x4 BIOS master password (U758)

Do you have any recommended web site for that ?

Search the internet,there are many paid services out there.This site is for free help only and links and recommendations to paid password services are not allowed.

If the Fujitsu-Unlocker doesn`t work,go somewhere else. https://www.badcaps.net/forum/showthread.php?t=79974

As there is no free solution at the moment for the newer algorythm and QR code
passwords this thread is closed.