A BIOS / firmware dump for Sony hardware (board MBX-208). Shared as “sony mbx-208 205 218 gm45 bin”, 2.00 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 @ShareMan_Electronic_Files. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →