BIOS dump for a Sony VAIO laptop built on the Foxconn M961 platform, motherboard MBX-224, packed as a ZIP archive of about 1.63 MB. The name marks the image as fixed with the Intel Management Engine region cleared, so the board should not carry over another unit's ME configuration or serial data. MBX numbers are Sony's own board codes, while Foxconn was the actual design and manufacturing partner. Read and save the original SPI chip with a programmer before writing, and confirm MBX-224 is printed on your PCB.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →