[Problem] LAN MAC address of MSI B760 Gaming Plus WiFi BIOS

BIOS/UEFI Modding BIOS Modding Guides and Problems
1

Hello everyone,

I’m dealing with an issue on my MSI B760 Gaming Plus WiFi motherboard.
A driver that I need to use performs a SHA256 integrity scan on all network MAC addresses present in the system (not just the active ones).

The problem is that the onboard LAN controller exposes a LiteOn MAC address and fail to complete the installation :

48:6D:44:B7:23:5A

This MAC is blacklisted by the software provider, so the installer always fails, even if I:

  • disable the Onboard LAN Controller in BIOS,
  • disable Wi-Fi, Bluetooth, WAN Miniports, VPNs in Windows,
  • use a different adapter with a spoofed 00:... MAC.

No matter what I do, the installer still reads this LiteOn MAC from the firmware/EEPROM and blocks.

My question:

Is it possible to reprogram / overwrite / erase the MAC stored in the EEPROM of the onboard LAN controller? Or any other method ?
If yes, what’s the safest method on this board?

Intel “EEUPDATE”? An external SPI programmer (CH341A)?

Or alternatively, is there anyone here who offers a service to reflash/reprogram EEPROM for this motherboard?

Thanks a lot for your advice!

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Edit by Fernando: Thread moved into the “BIOS Problems” Forum Category and title shortened

2

The board has OROM Intel Boot Agent CL 0.1.14 and OROM Realtek 2.5 Gb PXE 3.01 and Wi-Fi is Intel…
Where does the system connect to another in-house device?
LITEON…this is probably an external device/routing…

EEUPDATE tool is for Intel NIC

RtPGTool is Realtek NIC

3

Hey, thanks for the quick reply.

Sorry im kinda new to all this and did a little bit of research, I dont understand everything.

What can be the problem ?
What do i need to do to make it work ?

I didnt find any traces of this : “48:6D:44:B7:23:5A” adress anywhere in my computer with various command.

I just have my router and ethernet cable to my computer nothing else beetween.

Thanks

4

Right here:

and “… a driver” meaning what? You’re the only one that needs this “special” driver we dont know nothing about it…and Realtek ones are not good for you?

So stay put and dont kill your NIC, wait for other users POV, that’s all from me.

5

omg srsly I have this problem too I guess we’re downloading the same driver lol
Ive also tried everything I could do… but it all failed :frowning:
so…did you find a solution?

6

Can someone, at least explain what driver this is or what makes it “special” trouble one…?
A supposedly simple Lan driver…no?

7

add me on discord : tekno1803

so we can talk about it if we are downloading the same driver

thanks

8

Hello, did u manage to find a solution? Thank you

9

Hello, did you fix it? please answer