Lenovo X220 Re-add support for 1866Memory possible?

[The Invisible]

any News on this :-) ?

[Sml6397]

Hello The Invisible,

I am still working on it. I should have a decent chunk of time tomorrow to work on the BIOS mod, so I will give you another update then.

~Steven

[The Invisible]

just another idea for the modded bios... removing the Spyware computrace components from the bios? would this be possible?

[The Invisible]

any News on this? :-)

[xfd]

Hello,

BIOS with unlocked memory speed, recalculated SHA-1 checksums, RSA signature and replaced RSA public key (no beeping when security chip is enabled) in attachment. Please check it and post feedback.

Regards,
xfd

[The Invisible]

wow big thx! is it possible to re Flash original bios in case it isn't stable or something?
what is the Maximum ram Speed the x220 can handle with this bios?

[The Invisible]

holy shittt! it works! just flashed it and made a before after Analysis with aida64 my x220 now runs on 1866 ram Speed! great Performance boost!!!
big big thx for this!
now i wonder what would the max ram is that the x220 can handle?
i think this hack would be applicable on the whole x20 series from Lenovo?

[xfd]

Hello,

sorry that I'm asking this question now, did you have 1.39 version in your laptop before flash?

!! IMPORTANT flash this BIOS only if you already have 1.39 version in your laptop !! IMPORTANT END

You can always back to original version, using command from readme.txt, replacing modded BIOS file with original one.

I think max memory speed is 1866Mhz, I will try to confirm that. <- It should be 2133Mhz, but untested.

Actually unlocking memory frequency was easy and probably can be applied to other models, but this have to be verified individually. Hard part was checksum calculation, figuring that took me some time. I will soon publish tools and describe how to do that.

Regards,
xfd

[xfd]

Hello,

Original 1.39 BIOS file in attachment.

Regards,
xfd

[The Invisible]

yes i had 1.39 bios on my machine before, works as intended :-)

could you implement the slic and whitelist patches?