[REQUEST] Lenovo Thinkpad X240 (GIETxxWW) Whitelist Removal

[gibsson]

Hi Da Vinci Code,

Thanks for your reply, I'm all for solution #2.

As I said in my first post I removed the chip already and have a SPI programmer with me. That is how I retrieved the NOR flash dump.

As for code, I'm not afraid of digging into it, but what I am lacking the most are tools (running on Linux possibly) to disassemble the dump. I'm surprised I can't find the Realtek IDs in the dump. Any pointers on how to achieve that?

Thanks,
Gary

[Da Vinci Code]

Can you provide me your bios dump?Whitelist located at one of modules.

[gibsson]

Hi,

Here is the 16MB dump:
https://we.tl/slqZ1AfA17

What are the modules?

Thanks!
Gary

[Da Vinci Code]

I see lots of garbage here!
It seems you have read content of bios chip not properly!

[gibsson]

Arf, ok, I'll try to make another dump with shorter cables.
As a FYI I went for a solution with everything I had in hands first, so I've used my Raspberry Pi + flashrom to do that dump. I'll let you know once I'm done.
Hopefully I didn't damage the flash while removing it from the motherboard. Do you know if there's a place with original flash dump for BIOS (especially for lenovo laptops)? If there is I'll order a few W25Q128FV parts right now.

Thanks,
Gary

[gibsson]

Hi again,

Here is the new file which seems a lot better:
https://we.tl/YIgGv6lY1F

I've been able to see the Realtek IDs at several spots!!! If not possible to remove the list completely I'll just change the IDs.

Thanks,
Gary

[gibsson]

Hi Da Vinci Code,

Could you confirm that my last dump seems legit? Just want to make sure before flashing over the current data.

Thanks,
Gary

[eilatuno]

Hello, Gary!
Unfortunately, bios chip is rewrite protected so mod can be flashed using HW SPI Programmer only!
There are two ways of removing whitelist.
1. You can change id of current card to id of new card. So new wlan card added to whitelist and laptop contunue to booting.
Whitelist not disabled, and you will get "Unauthorized card..." when try to install new wlan card. This is easiest way to bypass this error.
2. Needs more deep knowledge in codes. This method makes all cards are "white" so you can install any card and laptop will start successfully.

Hi Da Vinci Code,

I'm a T430s owner and unfortunaly my TP have the same problem of x240 to permit the WLAN swap.
Is impossible for me to extract and modify the bios (i don't have an SPI flasher) but i'm really interested to you first option, after googling about this i found a guide to rebrand a DW-1510 (broadcom based card) http://www.insanelymac.com/forum/topic/1...rds/page-1, but unfortunely it doesn't work.
Can you share a guide or give me a feedback about this way?

PS: i also tried to search info about the new method of EC patching https://github.com/hamishcoleman/thinkpad-ec but i don't understand clearly if this method permit me to add or swap a device ids to bypass whitelist.

Many thanks in advance

[markovich]

Welcome everyone.

It's my first thread in the forum, so please be patient 
I have been lurking this place for longer than a year now. I have learned many important things from this.
Modded my past two laptops successfully.
Here I sit in front of my dad's x240 (it's his private laptop, don't worry).
He wanted to change his wifi card, so I decided to help him with the whitelist. I managed to find a correct module with uefitool, analyse it using ida and modify with hexeditor. Flashed it using minipro programmer. Now he's very happy it works. 

The problem is the double 5 beeps thing (1-1-1-1-1---1-1-1-1-1). I disabled SecurityChip with no effect. (if it's not doable, he could live with that)

I also have problem with unlocking advanced menu tab (Last one I unlocked was on some old Dell year ago, it was an easy process). Now I see that in this case it's completely different as FormSets are loaded (somehow) through different modules.

I have already found modules with "Advanced" form set and some kind of "form loader". 

I am a programmer, also with successes in software reverse-engineering  (computer science student, last semester of bachelors). I'm really not interested in 'just download and flash it' solutions. Could someone be so kind and at least try to explain to me what to look for? Or how to approach the problem? Really couldn't find anything more on the internet 

Thanks for help, in advance.

[TrialGTX]

Advance I pardon if I'm going to talk nonsense, I'm just a beginner.
And sorry for the stupid language, I use a translator.
I would like to know whether it is possible install in my ThinkPad X240 network module Intel 8265NGW .
I bought it because it fit the characteristics, but when installed to see an error 1802 and requiring it to remove.
I need modified bios, as I understand it, right?
Could you give an instruction  what to do or self modified bios, I would be immensely grateful to you.
Thank you in advance.

Big thanks user pythonic for answering on my questions.