u/killerdraft

Trying to update BIOS on my Minisforum N5 Pro NAS and ran into a ROMID mismatch issue. Wondering if anyone else has seen this or if Minisforum provided the wrong BIOS package.

System details:

• Device: Minisforum N5 Pro
• Motherboard: F8NAB (verified via dmidecode)
• Current BIOS: 1.01 (10/24/2025)

I downloaded the BIOS package Minisforum support sent me:

F8NAA_STX_1.05_260331.zip

The included BIOS file is:
F8NAA.BIN

The update is supposed to upgrade:

• BIOS → 1.05 (2026/03/31)
• EC → v0.14
• PI → v1.1.0.0c

I booted into the EFI shell and ran:

EfiFlash.nsh

which internally executes:

AfuEfix64.efi F8NAA.bin /p /b /n /k /r ...

But the flash utility immediately fails with:

Error: ROM file ROMID is not compatible with existing BIOS ROMID

After checking the board information, I noticed:

• Motherboard = F8NAB
• BIOS package target = F8NAA

So I suspect the BIOS package Minisforum provided is for a different board revision/model.

Additional notes:

• Secure Boot disabled
• Flash attempted directly from EFI shell
• USB detected properly
• BIOS file reads successfully before failing ROMID validation

Has anyone with an N5 Pro / F8NAB board successfully updated to BIOS 1.05?

Trying to determine whether:

1. Minisforum uploaded the wrong BIOS package (it seems)
2. There is a separate F8NAB BIOS
3. This requires a force flash flag (/X) which I’m hesitant to use without confirmation

Any insight would be appreciated.