[REQUEST] Lenovo X270 (R0IETxxW) Whitelist Removal

[pasha554]

Hey, I want to install a new WWAN module but my bios doesn't allow it.

Can you help me? Thanks!

Model: Lenovo X270

https://www.mediafire.com/file/b7bzei942...t.rar/file

[Dudu2002]

Hey, I want to install a new WWAN module but my bios doesn't allow it.

Can you help me? Thanks!

Model: Lenovo X270

Hi
How did you get this file?
Do you have a SPI-programmer?

[pasha554]

Hey, I want to install a new WWAN module but my bios doesn't allow it.
Can you help me? Thanks!

Model: Lenovo X270

Hi
How did you get this file?
Do you have a SPI-programmer?

https://www.mediafire.com/file/0b5k2143h...t.bin/file

bios dump by SPI Programmer

[Hercules]

Remoção de lista de permissão da BIOS
O modelo do lapot é Lenovo ThinkPad X270 a versão da BIOS é 1.51. Fibacom L850-GL

[Dudu2002]

Remoção de lista de permissão da BIOS
O modelo do lapot é Lenovo ThinkPad X270 a versão da BIOS é 1.51. Fibacom L850-GL

Hi
Need your bios dump

[webhard1]

Hello!

I need to put custom wwan card.

Is it still possible to remove the whitelist?

model: X270
Bios: 1.51 ( R0IET73W) 

Dumped with SOP8 clip!

https://www.mediafire.com/file/7ikmlr533...0.bin/file

[Kopturov]

I registered on this forum specifically to give you a solution.

I managed to remove the WWAN whitelist on the X270 (BIOS R0IET73W 1.51), but only in two steps.

First, you need to bypass the anti-tamper: in the full SPI dump, replace the signature 4C 4E 56 42 42 53 45 43 FB FF with 4C 4E 56 42 42 53 45 43 FF FF. Otherwise, any modifications won't load (black screen/beep). I did this with the HxD editor. After that, the whitelist itself is patched in the LenovoWmaPolicyDxe module: next to error 1802, the conditional branch 0F84 → 0F85 is changed. I used UEFIPatch with the following text:

# X270 WWAN whitelist (LenovoWmaPolicyDxe)
79E0EDD7-9D1D-4F41-AE1A-F896169E5216 10 P:66813E86807531E8681500003BC7752840387C244E0F84D2000000:66813E86807531E8681500003BC7752840387C244E0F85D2000000

It's important to apply the whitelist patch to the image with the patched LNVBBSEC. After flashing, the laptop boots normally and accepts third-party WWAN modules.