BIOS stands for basic input and output system, and the BIOS chip initializes all the other devices in your PC, like the CPU, GPU, and motherboard chipset.
But, please be very careful when updating your BIOS! If your computer freezes, crashes, or loses power during the process, the BIOS or UEFI firmware may be corrupted. This will render your computer unbootable—it’ll be “bricked.”
1. Get the BIOS files from ACEPC team (contact for the latest files), and it probably comes in an archive – usually a ZIP file.
2. Extract the file and copy the driver files to the C: drive’s Root Directory, then Press Ctrl Key + DEL key to Restart the PC.
3. Press F7 key, and choose this option: UEFI: Built-in EFI Shell
4. When process finished, Press Ctrl Key + DEL key to restart your PC
Check the video below and better know How to Update the BIOS of ACECPC Mini PC:
ACEPC Product List