Raw 4 MB BIOS dump for a Sony VAIO PCG-61A11W on the MBX-250 motherboard, marked for the Core i3 single-chip CPU variant. The name separates it from builds for boards with a different processor or graphics setup, so check which configuration is on the bench. MBX numbers are Sony board designations, found on the PCB label. The .bin is written straight to the SPI flash with a programmer such as a CH341A. A 4 MB image needs a 32 Mbit chip, and the original contents should be read and kept before erasing.
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 @bioshub. 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 →