Combined BIOS and EC firmware package for a board marked BM5860 version 1.3A, supplied as a 12.6 MB RAR archive. The name gives no laptop brand, so identify the machine from the board silkscreen before use. Having both the system BIOS and the embedded controller firmware lets a technician restore a unit that will not power on or charge after a corrupted flash. Program each image to its own chip with a suitable programmer, save the original contents beforehand, and check that each file size matches the target 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 @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 →