A BIOS / firmware dump for Sony hardware (board MBX-278). Shared as “mbx-278_tested.rar” — a .rar file, 3.25 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 @jdbiosworld. Enginerys does not host this file.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @jdbiosworld | 18 Feb 2021 | Open file on RM Schematics |
| @generalbios | 26 Sept 2023 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 29 Apr 2025 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
7-ZipWinRARThe Unarchiver (macOS)
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →