Firmware archive for a Sony Vaio identified only by model code PCG31311T; the =2= mark in the name is not explained. The 951 KB ZIP probably holds a BIOS image for writing with an external SPI programmer. Because the name gives no motherboard number, check the MBX board marking on your PCB before using it, as one PCG code can cover different boards. Read and keep the original chip contents first, and make sure the image size matches the flash chip capacity.
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 | 27 Feb 2018 | Open file on RM Schematics |
| @abgm_manutencao_bios | 8 Aug 2019 | Open file on RM Schematics |
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →