Sony VAIO VPCEA4AYC BIOS backup tied to motherboard MBX-224, stored in a 1.63 MB RAR archive. The name gives no extra notes about ME cleaning, EC firmware or a version number, so treat it as a plain dump taken from that model. Technicians use such an image to recover a board that fails to POST after a bad update or a damaged flash chip. Compare the dump size with the SPI chip capacity, save the original contents first, and expect to re-enter serial or DMI data afterwards if the source unit differs.
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 | 7 Aug 2021 | Open file on RM Schematics |
| @bioshub | 3 Feb 2022 | 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 →