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[REQUEST] Lenovo X220 (8DETxxWW) Whitelist Removal
(07-26-2018, 01:02 PM)skx Wrote: What do you mean with the offical Lenovo BIOS installer? Is this the tool which is auto loaded when launching the bios flashing from CD? Thanks

Hi skx. Yes, the installation tool that Lenovo provides with their bootable CD iso image here and Windows BIOS update utility here (WINUPTP.EXE) is what prevents rolling back the BIOS to a previous version. The installation tool included with the modified BIOS does not prevent rolling back.

If you want to flash the modified BIOS without installing Windows or bothering with the modifications to use Linux, there's a procedure described here that allows you to do it from a bootable Windows PE USB.

Hope this helps!
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(07-26-2018, 02:06 PM)johnmcdonnell Wrote: Hi skx. Yes, the installation tool that Lenovo provides with their bootable CD iso image here and Windows BIOS update utility here (WINUPTP.EXE) is what prevents rolling back the BIOS to a previous version. The installation tool included with the modified BIOS does not prevent rolling back.
Amazing, thanks for clarifying, so I am indeed good to keep rolling back as I never used their official Windows bios update tool. I thought the roll back prevention was included in the actual running bios, but they did it in their windows update application.

(07-26-2018, 02:06 PM)johnmcdonnell Wrote: If you want to flash the modified BIOS without installing Windows or bothering with the modifications to use Linux, there's a procedure described here that allows you to do it from a bootable Windows PE USB.
Never heard of of Windows PE, already quickly looked into it and I will indeed use this to flash the custom bios.


(07-26-2018, 02:06 PM)johnmcdonnel Wrote: Hope this helps!

It sure did, johnmcdonnel Big Grin Thanks a lot, and have a wonderful day!
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Hi
nice work on modifying bios.
but i'm getting bsod when running flash.bat for no whitelist only of a file called winflash64.sys

update
the bsod message is "Page Fault In Nonpaged Area" and i have run memtest84 to see if it was my ram. no errors found on ram

second update
reinstalled windows and run the program right after install. no problem. it must be a config somewhere in windows that messes with bios update
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Flashed 1.46 on X220 (Lenovo official 1.46 previously flashed) and "Advanced" menu shows, X220 is apparently behaving normally since. However at end of flashing (flash.bat) a message had appeared quickly three or more times in succession "Verifying BIOS Fail! Reflashing". Eventually the process finished without any particular confirmation message of success or otherwise.

Does this indicate something unrecoverable went wrong, or does it indicate the flash was eventually successful?

Thanks
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I installed the 1.46 full-mod BIOS on a X220 Tablet (i7), using flash.bat. Now it seems to have lost the SLIC table for Windows activation. Any ideas on how to get it back?

Running SLIC ToolKit, it now says SLIC Status: Invalidated

What sort of info would you need to help troubleshoot?

On a side note, the boot logo also disappeared. But that's the least of my worries right now.
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