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

[robrugg]

make an downgrade, and it's work now...

[IIsengard]

Hi,

Also looking for a modded BIOS for T420 i7 with v1.49.

Thanks

[wsa69]

Ловите, парни, а то тут жмотяры какие-то. https://www.sendspace.com/file/pqr2lb
https://yadi.sk/d/2r8181GH3SzpH8

[knoelli]

Hi,

Lenovo just released an updated bios for the ThinkPad T420 to address Meltdown & Spectre security issues.

Could anybody please remove the WiFi & WWAN whitelist for the latest bios?

Manufacturer: Lenovo
Model: T420
Bios: 1.50
Link: https://pcsupport.lenovo.com/us/en/produ...s/DS018785

Thanks in advance 

[knoelli]

Hi,
is there a way you can work with the bios update as provided by Lenovo? The problem is that I don't have the original WiFi card anymore, so if I would flash the new, unmodified bios, I couldn't get my machine online anymore.

[Chapman]

Hi, I am new here and am in search of ThinkPad BIOS Mod to remove the white listings...

Lenove ThinkPad T420
UEFI BIOS 83ET63WW V 1.33 (07/29/11)
Type 4180AD9

I am specifically looking to use the Intel 7260 Dual band AC card in this lappy.

Any help is appreciated.

Chapman

[HarryW]

I would like to have the whitelist removed (including WiFi modules & OEM battery lock) from the latest Bios (v1.50 - 83uj31us) for the Lenovo Thinkpad T420. Not sure, if this belongs to the whitelist forum too, but if so and if possible, the RAM clock rate lock should also be removed.

Link to original bios:
83uj31us

Thank you!

[amidar]

Hi,

I also want the t420 bios 1.50 whitelist removal.
I still have the original wifi so I can put it in and upgrade to the original new bios.

I just don't know what to do afterwards in order to help whitelist it...

would appreciate some help here - I'm willing to contribute my machine for it...

[HarryW]

If you're only interested in the micro code update for Meltdown / Spectre you may simply flash the original bios and then downgrade to your old modded bios without flashing the micro code using the following command in a cmd shell (with admin rights):
WinFlash.exe /v /cs /sd /sv /svs /vcpu $01C8000.FL1 (for T420 modded FW 1.46)

That's at least a workaround for Meltdown / Spectre till there's a working 1.50 mod bios.

[hellbent]

Hello all,

I just picked up a mint T420 and it is currently running BIOS 1.39.

As members have stated above I'd like to update to BIOS 1.50 but also remove the typical whitelist for wifi/wwan/battery etc, add advanced menu and restore RAM speeds.

I am new to this though, so would appreciate if any experienced members could offer me some assistance to complete this process.