A BIOS / firmware dump for Sony hardware (board MBX-238). Shared as “MBX-238 4MB 128KB.zip” — a .zip file, 1.64 MB.
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 @generalbios. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →