[REQUEST] Lenovo B590 (H5ETxxWW) Whitelist Removal

[Cokeef]

Hello, I need help.
Goal: Remove Error 1802 ("Unauthorized network card") for an Intel 7265HMW card.
This is what I have:

• Model: Lenovo B590 (Model 20208)
  
• Main BIOS Version: H5ET73WW (1.16)
  
• Main BIOS Chip: Winbond W25Q64CVS
  (8MB / 64Mbit) - This is the only 8-pin chip I can find.
  
• EC Controller Chip: Nuvoton NPCE885GA0DX
  (Markings: 2247BD32-072, 3023DFA)
  

My Diagnosis & What I've Done:
I know this is a Dual Whitelist problem. I ALREADY patched the Main BIOS (W25Q64), but it failed. Here are my exact steps:

1. FPT works (BIOS Lock is OFF). I dumped the 4MB BIOS region with: fptw64.exe -d backup.bin -bios
   
2. I found the LenovoWmaPolicyDxe module (by searching for "1802" Unicode).
   
3. I extracted its body, patched it in HxD (74 17-> EB 17).
   
4. I used UEFITool (v0.28) to "Replace Body" and "Save Image File..." to create modded.bin. (This should fix all checksums).
   
5. I flashed it back with: fptw64.exe -f modded.bin -bios
   
6. The flash was successful. I dumped the chip again and confirmed my EB patch is on the chip.
   

...BUT I STILL GET THE 1802 ERROR.
This proves the real check is in the Embedded Controller (EC) Firmware.
MY "BRICK WALL" PROBLEM:
I CANNOT FIND THE EC FLASH CHIP.
I read the Dale Nunns repair article and AI research. All sources say there MUST be a second 8-pin chip: the Winbond W25Q32FVSIG (4MB / 32Mbit).
I have searched the entire motherboard (both sides) near the Nuvoton "spider" chip and the W25Q64. I CANNOT FIND IT.
My Final Questions:

1. Is it possible that on my specific motherboard revision, both the Main BIOS (8MB) AND the EC Firmware (4MB) are stored on the SAME 8MB W25Q64 chip?
   
2. If "Yes" — how do I patch the EC part? (FPT can't touch it, and my CH341A
   programmer will dump the whole 8MB. Where is the EC patch location inside the 8MB dump?)
   
3. If "No" — can anyone please show me a photo of where the W25Q32 is hidden?
   

I am not ready fight again with my CH341A programmer, SOIC8 sucks! And also I don't know what to read!
I am attaching my CPU-Z report, my original backup.bin
(from FPT), and my modded.bin (that I flashed).[img]/images/emoji/twitter/sob.png?v=14[/img]
I am not ready fight again with my CH341A programmer, SOIC8 sucks! And also I don't know what to read!
I am attaching my CPU-Z report, my original backup.bin (from FPT), and my modded.bin
(that I flashed).
Thank you. (AI helped me step by step, i'm sorry if i did smth wrong)

P.S. I forgot to mention the exact card I am trying to install.
It is an Intel Dual Band Wireless-AC 7265. Model: 7265HMW P/N: m863601-02

[katri]

Hello!
I would like to request a Wi-Fi whitelist removal for my Lenovo B590.
Laptop: Lenovo B590
Machine Type Model: 20208
BIOS: H5ET73WW (1.16)
EC: H5EC33WW (1.13)
Date System BIOS: 04/10/2013
I made a BIOS backup from my own laptop.
The original backup is 4 MB.
SHA-256:
f1bf8428a3a57cff0bfa09a3d17421cc0cd4980f2cb409e10a2a0c5d2e121505
I have attached the original BIOS backup to this post.
Could you please remove the Wi-Fi whitelist from this BIOS and provide the modified file?
Please also provide instructions for safely flashing the modified BIOS.
Thank you!