Sony VAIO BIOS image for mainboard MBX-281, marked as tested and working, in a RAR of about 3.27 MB. MBX numbers are the board codes Sony printed on VAIO mainboards, so check that label rather than the retail model name. Write the dump to the SPI flash with a programmer to recover a board with corrupted firmware or a BIOS password lock. Read and back up the original chip before erasing it, and confirm the image size matches the flash chip so it fits.
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 @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →