[REQUEST] ThinkPad X1 Carbon (20A7 & 20A8, GRETxxWW) Whitelist Removal

[jpstoppa]

-Manufacturer: Lenovo
-Model: X1 Carbon 2nd (20A7002QUS)
-Latest Bios Revision:  UEFI BIOS v1.40 (GRET63WW)  ECP v1.20 (GRHT39WW)    release date: 2020/04/06
-Bios link: https://download.lenovo.com/pccbbs/mobiles/gruj37us.exe


***
-Wifi Model installed: Intel Dual Band Wireless-AC 7260 AC 2x2 HMC
Hardware ID: PCI\VEN_8086&DEV_08B2&SUBSYS_C2708086&REV_83

***
-Wifi Model to install: Intel 8265NGW


Thank you in advance.

[lwader]

Hi,
what is original version lenovo bios to create mod from attachment previous post? The latest version is 1.40.
is it compatible to laptop like below?

ThinkPad X1 Carbon 2nd
serial number: R9034PEY
product number: 20A8S0P1MN
bios version: GRET63WW 1.40

hope for fruitfull support
I would like to install in my lenovo ax200NGW card like this one: https://pl.aliexpress.com/item/33010619009.html

regards,

[lwader]

i see some risk of this method and effort to disassmbly computer for main board access , so there is a question if new bios firmware from lenowo will not rewrite everything and activate white list again?

[Dudu2002]

i see some risk of this method and effort to disassmbly computer for main board access , so there is a question if new bios firmware from lenowo will not rewrite everything and activate white list again?

First update bios

[lwader]

i see some risk of this method and effort to disassmbly computer for main board access , so there is a question if new bios firmware from lenowo will not rewrite everything and activate white list again?

First update bios

where are located bios chips? on top or bottom control board?

[Dudu2002]

i see some risk of this method and effort to disassmbly computer for main board access , so there is a question if new bios firmware from lenowo will not rewrite everything and activate white list again?

First update bios

where are located bios chips? on top or bottom control board?

photo is uninformative

[lordwader]

hi, yesterday I was do a bios dump file, unfortunately Dudu diagnosed that file has some bugs and it's impossible create mod.
I do it several times with same result, i verified contacts on pins and another. Everything looks ok.
My bios chip is MX25L12873F (X1 carbon 2nd gen).
Where could be fault.
In attachment my last dump.

[ith3MoChohKi]

Hello,
Lenovo X1 Gen2, bios dumped via CH341A here: https://drive.google.com/file/d/17uKmt_1...sp=sharing

Can I ask for help with wlan whitelist removal?
thanks!
Marek

[drvik]

Hello , Dudu  can you help to remove whitelist and advance options of Lenovo x1 2gen  here is the BIOS dump  using CH341A : https://drive.google.com/file/d/1BrROm3C...sp=sharing

[lemusicos2000]

ThinkPad X1 Carbon
20A7
Core i7-4550U
8 GB RAM
HD Graphics 5000
GRET63WW (1.40 )


  LENOVO-GRET63WW(1.40).zip (Size: 2.86 MB / Downloads: 13)