BIOS firmware archive for the Lenovo B590 laptop, 3.17 MB in RAR format. The name gives no board number, revision or BIOS version, so check the motherboard label and compare with the extracted image before use. Such dumps are used to reflash the SPI chip with an external programmer when the notebook has no display, will not start or was bricked by an interrupted update. Save the existing chip contents first to preserve the serial and license data, and confirm the image matches the flash chip size.
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.
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 →