[REQUEST] Lenovo Thinkpad T420 (83ETxxWW) Whitelist Removal

[Dimych]

TPM HW Protection so Disable into Bios Setup !
Regards

BDMaster,
this option isn't on all thinkpad models like t420 t520 x220 etc

could you unlock this opton?

[pewbush]

Thanks for your quick reply. I flashed the bios, but vbios version still remain the same (2089). I don't know why

A general question: In UEFI Tool I found vBios module in 0AFCDD7A-345E-415E-926D-C5971B580400_2336.ROM and replaced the "RAW Section" with a new intel vbios .dat file (for example Version 2170) by clicking "replace Body". After that I saved the file to $01C8000.FL1.rom and renamed it to $01C8000.FL1.

Is this all?

YES!!!



https://www.sendspace.com/file/0whb9r

Hello Guys,

I flash this version on my Bios and everything works fine.
But one thing is really anoying. The system beeps 2 x 5 times on every start.
Anybody have a idea why? And how I can disable it?
TPM chip seems to work properly.
Thanks in advance.

[raudraido]

Whitelist or downgrade possible?

[sXekid]

ThinkPad T420
Model: 4178BTG
BIOS: 83ET76WW (1.46)
BIOS link: http://support.lenovo.com/en_US/download...D=DS018785

Present WWAN card: no card installed

WWAN card to be installed: Ericsson F3607GW
FRU:60Y3237

Thanks

After year of use, I accidentally have update BIOS to 83ET78WW and lost possibility of using WWAN card . Can this be fixed again, please?

[winner10]

Hello, i need help for removal whitelist on my Lenovo T420   Modell:  4238-AG7,  Bios:   83ET75WW  (1.45)

i wish install new wwan and newer wlan Adapter.


link for bios download https://support.lenovo.com/at/de/olddownloads/ds018785     but Attention this is the newer Version 1.48

can anyone help me please

[Dudu2002]

Hello, i need help for removal whitelist on my Lenovo T420   Modell:  4238-AG7,  Bios:   83ET75WW  (1.45)

i wish install new wwan and newer wlan Adapter.


link for bios download https://support.lenovo.com/at/de/olddownloads/ds018785     but Attention this is the newer Version 1.48

can anyone help me please

http://rgho.st/8Q9mYnYTQ

read README

[YushokU]

Hello,
I found on this site whitelisted BIOS, but it don't work. I installed it on Win 10 x64, but now I have other system, and I can only use Win 7 x32 PE on LiveCD. I need 1.46 BIOS. I have two versions - one to burn on the CD in .iso, and 2nd to use on windows in .exe. The first one is more interesting for me, but I don't know if it is possible. I need to use Broadcom BCM943225HM wifi card. Thank you in advance.
http://www.megafileupload.com/k9kk/83uj28us.exe
http://www.megafileupload.com/k9km/83uj28us.iso

[alby71]

Hello Guys.
Im sorry try to ask, i read a lot of messages but i can't mod my bios.
I have a Lenovo T420 with original 1.46 bios version and i need change my wifi card.
I already try with a mod bios found in internet but when i start "flash.bat" in administrator mode nothing happened.
I try using win10 ( read later is possible that the cause ) try with a fresh install of Win7 and last with a Live Usb Win7
but i had the same result. Nothing happened.

Can someone try help me to know where im wrong ?
Sorry about my bad english too.

PS: If is needed that my right model: Lenovo T20 Type 4236-AQ7

Thanks
Alberto

[zerobyte]

Hi everyone.

I have t420 with bios version 1.46. I found on one thread of this subforum a few bios updaters (Lenovo_ThinkPad_T420_83ET76WW-83uj28us_NWL_LEN21_ADV_RAM_Speedo_AES_vBios-2119.rar,
Lenovo_ThinkPad_T420_83ET76WW-83uj28us_NWL_LEN21_ADV_RAM_Speedo_AES_vBios-2170.zip,
Lenovo_ThinkPad_T420_83ET76WW-83uj28us_NWL_LEN21.rar) and try it, but no changes after update. 
System: win7 i386 LiveUSB. I run this with Administrator account.
If it possible, can unlock AES and 16Gb limit?
Thank you in advance.

[carpediem90]

Hi, can somebody please whitelist BIOS v1.49 for Lenovo ThinkPad T420? And if possible, enable advanced menu with e-GPU and memory unlock features? Thanks in advance!

v.149 83uj30us BIOS can be found here: Link