Sony VAIO VPCF1 series BIOS for the Core i7 variant, built on Sony board MBX-215 and noted as read from an MX25L320 flash chip; the name also carries an M930 tag. The MX25L320 is a Macronix 32 Mbit SPI part, matching the 4 MB file size. Sony uses the MBX-number pattern to identify its motherboards, printed on the PCB. Confirm MBX-215 and the CPU variant on your unit, back up the original chip with a programmer, and verify after writing.
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 @biosbigarchives. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →