Original BIOS dump labelled only as Sony, with no model, MBX board number or version in the name. It is a 2.00 MB binary, matching a 16 Mbit SPI flash chip. Sony VAIO boards carry MBX numbers on the PCB, so match that against the source of this image before using it. Treat it as a reference until verified; when flashing with an SPI programmer, back up the original chip first and check that its capacity matches the image.
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 @bios_laptop. 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 →