Sony VAIO VGN-CR23 firmware in a 2.2 MB RAR archive, linked to Sony board number MBX-149 and marked MS10, which likely refers to the mainboard code. MBX numbers are Sony own motherboard identifiers printed on VAIO PCBs, useful for matching the right image. Extract the archive and verify what it contains before programming the SPI chip with a hardware programmer. Back up the original flash first, check the image size against the chip capacity, and confirm the board reads MBX-149.
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.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 1 Mar 2017 | Open file on RM Schematics |
| @abgm_manutencao_bios | 9 Aug 2019 | 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.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →