BIOS firmware for the Toshiba E45DW-C4210 laptop, taken from the main board labelled ESAC L MB, revision 2.1A, in a 2.29 MB RAR archive. Technicians use such a dump to recover a laptop with corrupted firmware by writing it to the SPI flash with an external programmer such as the CH341A. Read and save the original chip contents first, since serial numbers and other system data may be stored there. Check that the board revision matches and that 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 | 21 Apr 2021 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 21 Apr 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 →