Minisforum: Bios update not available? recommend Minisforum computer. I researched a little about Minisforum support.
I cannot find any BIOS update support for this kind of computer.

Any one know more about it?

Here is a detailed tutorial (HP BIOS/Firmware updating - Tutorials - Manjaro Linux Forum) specifically addressing this issue. I hope that it will help you.

Lookup the mainboard model:

inxi -M 

and go to the vendors website.

Can you try this?