GPD WIN 4 (2025, 8840U) — BIOS v0.04
Current BIOS for the gpd-win-4 2025 model with 8840U APU only. Does not apply to the AI 9 HX 370 variant.
Installation: Format a USB drive to FAT32, place the BIOS file on the drive, power on and press F7 to select USB boot and flash. Keep device on charge.