BIOS binary for an unnamed J1900 motherboard, labelled as tested in the archive name, compressed into a 3.90 MB RAR. The Intel Celeron J1900 Bay Trail SoC appears on many generic mini PC, industrial and Mini-ITX boards, and firmware is not interchangeable between vendors. Since no maker or board number is given, compare the board layout and markings carefully. Back up the original SPI flash contents with a programmer before writing this image, and verify the dump size fits the chip.
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 @hrtechno. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →