Password-unlocked BIOS image for the Sony GD1B board variant, distributed in a 700 KB RAR archive. It is a sibling of the GD1A image, so confirm the exact board variant printed on the PCB before choosing it. Technicians flash such files onto the BIOS SPI chip with an external programmer to clear a forgotten supervisor password. Always dump the original chip first as a backup, and verify the file size equals the flash chip capacity before writing.
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 @IT_SERVICE_WORLD. 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 | |
|---|---|---|
| @IT_SERVICE_WORLD | 1 Oct 2019 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 2 May 2021 | 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 →