Firmware dump for a board identified as BM5488_FPC_V1.4, marked as a working BIOS with full confirmation. The name states no laptop brand or model, so the code BM5488 and version 1.4 printed on the PCB are the only ways to confirm a match. The RAR archive is about 6.39 MB and likely contains an SPI flash image for writing with an external programmer. Before flashing, read and save the original chip, check the chip capacity against the image size, and verify the board marking carefully.
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 →