The lastest Up Board bios from Up is UPC1DM25 UP Community downloads » UP Board UEFI BIOS (UPC1DM25_EFI)
Aaeon has newer UPC1DM27 UP Board | UP-CHT01 | Computer Board for Professional Makers - AAEON for Up Board but can’t boot for install.
I merge Up UPC1DM11 UP Community downloads » UP Board UEFI BIOS (UPC1DM11) boot method with Aaeon BIOS file and fix case sensitive file name in script from UPC1DM27 install script.
Only work on 2GB & 4GB original Up Board. BIOS password= upassw0rd
No CRB need. Go to USB by press F7 on boot.