[REQUEST] Lenovo B490 (H1ETxxWW) Whitelist Removal

[sovem]

oh man , thanks for answer me

Here the results archive :

LINK: https://www.sendspace.com/file/ho4od6

and here the bios backup:

LINK: https://www.sendspace.com/file/5tw0do

well , i think is all here , thanks you very much again.

and , i don't want to be rude , but how the process works?

if you can explain just a basic line , i sure would be more thanks.

H1ET85WW_NWL_xXTheNightmareXx
http://rghost.net/59945469
Look README to update, please post results.

[xXTheNightmareXx]

what i was trying to say , was , this is the same version that my bios , just a modification that delete the restrictions of cards?

another question , there is a chance of my computer don't work anymore?

, and thank you very much again bro.

[xXTheNightmareXx]

i finished now the flash , and i think it's all running okay , but i still got too put on again the Adapter card to test if it really works , thank you , very , very much , i hope it works , i never imagined that exist a forum lke this one , that help people , i someday , hope pay back

[xXTheNightmareXx]

and i'm back , and with good news , it works perfectly , it reconize my adapter , and make him work again.

thank you very very much man , that's isn't much , but is all that i can do for now , i sure will share your forum , for more people come here , thanks man , you are a real hero

[sovem]

Thanks for feedback.

[Emanuel Leuname]

Hello,
I am looking for a BIOS mod to bypass/remove the infamous whitelist check.

Notebook: Lenovo B490
BIOS (details by AIDA64): Phoenix EFI, version H1ET85WW(1.23), dated 04/15/2014
Original BIOS: http://support.lenovo.com/us/en/products...s/DS032260
Target device: Intel® Dual Band Wireless-AC 7260 (Model: 7260HMW) (ID: 8086 08B1 8086 4070)
Dump of "FPT_BACKUP-BIOS.exe": attached

Have a nice day and thanks in advance!

[Emanuel Leuname]

Well, in those two days summing around 20 hours of research and work, I have managed to do it myself.

I had zero previous knowledge on BIOS modding and was very scared to brick my notebook, but I triple checked everything I could and it worked fine on first try.

Thanks for everyone, most of the information on how to do this was found here in the forums; I just had to "adjust" some information because some tutorials and procedures used old programs/methods.

Now I can finally go out of my cave and see the sunlight again.

Cheers!

Ah, and do not forget to sign this guys:
https://www.bios-mods.com/forum/Thread-W...-to-Lenovo

[BDMaster]

Reuploa Bios Backup on RGhost or Sendspace Servers please !
Regards

[Emanuel Leuname]

Thank you very much for your disposition, but in my last reply I stated that it is no longer needed as I ended up doing it myself.

Anyway, as requested and in case someone wants to see how it was done, I have uploaded the source BIOS ("BIOSBAKK_64.ROM"), the resulting BIOS ("BIOSBAKK_64[PATCHED].ROM"), and some of the intermediate files here: http://rghost.net/8SkwfCytv

In my case, the whitelist was in the module "LenovoWmaPolicyDxe.efi" (GUID: 79E0EDD7-9D1D-4F41-AE1A-F896169E5216).
(Identify it by looking for the unicode string "1802: Unauthorized network card is plugged in")

The "[MZ]" file was not really extracted using Andy's Phoenix Tool, it is simply the "[pe32]" (usually the first section of a module) without the extra header, so that it can be successfully identified and loaded with "Hex-Rays IDA Professional" for assembly analysis and modification.

The modifications made with IDA Pro were saved in "MZ_DIFF.dif", so that the patches can be hex edited in the "[MZ]" file. Then, after patching it, put back the header to recompose the "[pe32]". With it, all that is left is to replace the original "[pe32]" with the patched one in Andy's tool clicking the "Replace" button.

Now, create a bootable USB stick with pure MS-DOS, put the flasher files and the resulting BIOS from Andy's tool (renamed "bios.bin") in it, restart the computer, boot from it, run "Flash.bat", and pray.

...or try requesting it!

[BDMaster]

Nice tutorial (and work) !!!
Regars