Lenovo B590 variants

[lowrider2025]

I'm confused. I have Lenovo B590 which now has bios version H1ET85WW(1.23) and 20208 would be the most likely version according to other users who also have this bios version . However if I enter my serial number at Lenovo website it proposes H9ET92WW as latest bios update. This does not work when updating and throws an error.

My laptop has Core i5-3230M and HM77 chipset and already updated ME FW version 8.1.72.3002 . But planning to disable/remove it when getting more at ease with bios modifying.

What does H9ET92WW.exe check ? Is it slic code ? So that only devices with TP-H9 slic code get this update ? CPU-Z shows laptop as being version 62742BG . I understand there are also 20206 and 20208 versions....

I'm also trying to remove whitelist. I extracted body with uefitool. Can someone tell me what language this is in so I can read up on the syntax and understand the subroutines and functions. I found it at
jmp     short loc_B39 => mov     r8, cs:off_258  ; "1802: Unauthorized network card is plug"...
But how to change so it jumps over whitelist check ?
Trying to figure it out for myself instead of having to ask people. I would be glad to learn something new

How can I flash H9ET92WW ? End goal is: keep w8 key from MSDM table and slic 2.1 and remove whitelist.
Slic should be no problem as marker tool fl2.exe should write it again according to TP-H1.DAT file ?

Thank you for pointing in the right direction

Code:

Intel (R) Flash Programming Tool. Version:  8.1.60.1561
Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.

Platform: Intel(R) HM77 Express Chipset
Reading HSFSTS register... Flash Descriptor: Valid

   --- Flash Devices Found ---
   W25Q64BV    ID:0xEF4017    Size: 8192KB (65536Kb)
   W25Q32BV    ID:0xEF4016    Size: 4096KB (32768Kb)

   --- Flash Image Information --
   Signature: VALID
   Number of Flash Components: 2
       Component 1 - 8192KB (65536Kb)
       Component 2 - 4096KB (32768Kb)
   Regions:
       Descriptor - Base: 0x000000, Limit: 0x000FFF
       BIOS       - Base: 0x800000, Limit: 0xBFFFFF
       ME         - Base: 0x001000, Limit: 0x7FFFFF
       GbE        - Not present
       PDR        - Not present
   Master Region Access:
       CPU/BIOS - ID: 0x0000, Read: 0x0B, Write: 0x0A
       ME       - ID: 0x0000, Read: 0x0D, Write: 0x0C
       GbE      - ID: 0x0118, Read: 0x08, Write: 0x08

Total Accessable SPI Memory: 12288KB, Total Installed SPI Memory : 12288KB

FPT Operation Passed