BIOS file for the Lenovo IQ57N motherboard, revision 1.0, packed in a 3.72 MB ZIP. The name does not say whether it is a tested chip dump or a stock image, so inspect the contents after extracting. A technician typically writes such an image to the SPI flash with a programmer like a CH341A to revive a board that will not post after a failed update. Back up the original chip, confirm the PCB is the IQ57N revision 1.0 and check that the file 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.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →