Firmware dump for the MB40IA1 laptop motherboard, revision 01, marked as working (funcionando, Spanish) and carrying the code 15BFC2-011000, in a 1.30 MB RAR. The name gives no laptop brand, so identify the device by the board marking. A working image is used to restore a board with corrupted BIOS by writing the SPI chip with an external programmer. Check that the PCB reads MB40IA1 rev 01, back up the existing chip contents first, and ensure the image size matches the flash 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 →