Dell XPS 8940 | Manufacturing Mode? | No Service Tag

[AustinCER]

Hello, I currently have a Dell XPS 8940 in our office for repair.
Service Tag: HG1Y673
The most recent BIOS is pictured below -- being available as an .exe on Dell website.

Needed a new motherboard due to power surge. The motherboard replacement was installed and upon power up it was booting to a display message - Manufacturing Mode Active -

Have not dealt with this issue before or what the proper steps are. I booted to the BIOS and manually entered the Service Tag, but upon each reboot -- the service tag is wiped and shows the Manufacturing Mode display message, as well as the Service Tag is not programmed. Due to not knowing the proper steps of implementing the Service Tag, I want to go ahead and wipe the BIOS and start over.

Would anyone be able to steer me in the correct direction or supply me with a clean BIOS .bin file.

I have searched the forums and came across this thread and was wondering if this .bin file is correct
(https://www.badcaps.net/forum/troubl...ce=chatgpt.com)
I will attach the .bin file that is mentioned from the thread above.

Appreciate all and anyone who is able to help. Would like to get the Service Tag to stick so the customer does not have to deal with this menu every time the Desktop is powered on.

[hoaca388]

Hello, I currently have a Dell XPS 8940 in our office for repair.
Service Tag: HG1Y673
The most recent BIOS is pictured below -- being available as an .exe on Dell website.

Needed a new motherboard due to power surge. The motherboard replacement was installed and upon power up it was booting to a display message - Manufacturing Mode Active -

Have not dealt with this issue before or what the proper steps are. I booted to the BIOS and manually entered the Service Tag, but upon each reboot -- the service tag is wiped and shows the Manufacturing Mode display message, as well as the Service Tag is not programmed. Due to not knowing the proper steps of implementing the Service Tag, I want to go ahead and wipe the BIOS and start over.

Would anyone be able to steer me in the correct direction or supply me with a clean BIOS .bin file.

I have searched the forums and came across this thread and was wondering if this .bin file is correct
(https://www.badcaps.net/forum/troubl...ce=chatgpt.com)
I will attach the .bin file that is mentioned from the thread above.

Appreciate all and anyone who is able to help. Would like to get the Service Tag to stick so the customer does not have to deal with this menu every time the Desktop is powered on.

Here

[AustinCER]

Here

Appreciate your response! Will flash this BIOS and let you know the outcome!

[AustinCER]

Here

BIOS was re-flashed, not successful. Attached is a video of the status of the desktop -- fans spin at full speed upon power up, no display. I can try to re-flash chip again, but so far not good.

[AustinCER]

Would attempting to flash the BIOS on the original motherboards BIOS chip work? The original motherboard BIOS chip is a winbond, while the new motherboard BIOS chip is not.

[hoaca388]

Flash chips in VSCC table:

Winbond W25Q256
Macronix MX25L256
GigaDevice GD25x256C
Micron N25Q256
Macronix MX25L256

[AustinCER]

Flash chips in VSCC table:

Winbond W25Q256
Macronix MX25L256
GigaDevice GD25x256C
Micron N25Q256
Macronix MX25L256

Appreciate it, will have to double check the original chip and then give it a try. The .bin file you provided has everything needed for the flash correct (like regions, etc?) I just need to execute the flash correctly. We use the CH314 and Neo/AsProgrammer.

[AustinCER]

Flash chips in VSCC table:

Winbond W25Q256
Macronix MX25L256
GigaDevice GD25x256C
Micron N25Q256
Macronix MX25L256

Thank you so much! We flashed the original Winbond from the dead motherboard and successfully revived the PC. We were then able to stick the Service Tag and exit Manufacturing mode. We appreciate your knowledge! Attached is a video.

[JoshCER]

Flash chips in VSCC table:

Winbond W25Q256
Macronix MX25L256
GigaDevice GD25x256C
Micron N25Q256
Macronix MX25L256

Really appreciate your help and the great info, my friend!