Backup BIOS image for the Lenovo S405, packed in a RAR archive of about 2.11 MB. The word backup suggests a dump read from a working machine, but no board number or flash chip is named, so check the archive contents and the image size before use. Technicians write such a file to the SPI flash with a hardware programmer such as a CH341A when a laptop fails to post after a corrupted update. Save the existing chip contents first and make sure the image size matches the 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 | 4 Dec 2017 | Open file on RM Schematics |
| @abgm_manutencao_bios | 8 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 →