How to Download firmware or Bios/uefi updates for the mini pc?

How to get or Download firmware or Bios/uefi updates for the mini pc , I get that there is drivers download option and also driver tool - SDI tool , but Bios updates are not available for Mini PCs.

BTW I want bios updates for

  1. Carbon by SkullSaints Mini PC: 12th Gen Intel N100
  2. SKULLSAINTS Ash Mini PC – 13th Gen Twin Lake N150

Please find available BIOS here - Microsoft OneDrive

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Thanks,
but are there any bios files for these two mini PC
Carbon Mini PC - N100
Ash Mini PC - N150

I am unable to find a BIOS update in the above shared OnDrive Link for : SKULLSAINTS Carbon Mini PC, can you please help? I have started getting system hangs and all thing point to BIOS Update. The current version of BIOS is from 2023.