BIOS firmware for the Biostar J1800NH3 mini-ITX board, version 6.x, with its Intel Celeron J1800 soldered onboard, in a 3.60 MB ZIP. The catalogue lists the brand as ECS, though the name itself says Biostar. Confirm the board version printed on the PCB, because firmware for one hardware version may not suit another. When reflashing the SPI chip with a programmer, back up the original contents first. Check that the image size matches the chip capacity before writing to the flash.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →