Tested BIOS archive for a laptop motherboard with the project name OSAMU2_CR_HPC MV_MB V1, packed as a 3.57 MB RAR. The name gives no laptop model, but Osamu2 boards appear in HP budget notebooks, and the CR suffix marks a different variant from the BT version. Use the image to rewrite the SPI flash with a programmer on a board with no POST or a corrupted BIOS. Compare the silkscreen marking with the name, keep a copy of the original chip, and check the file size against the chip capacity.
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 .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 →