Firmware dump for a Positivo SIM notebook on board MB40IA1, with an extra 15bfc2_011000 string that may be a checksum or build identifier, though the name does not say. The 1.25 MB archive likely holds a compact SPI image for an older platform. Use it to restore a laptop whose BIOS chip was corrupted, writing it with a programmer and test clip. Confirm the board marking, compare the image size with the chip capacity, and keep a backup of the original before flashing.
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 @afsbiosfree. 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 →