Lenovo V580C BIOS package compressed as a ZIP of about 3.3 MB. The =8= marking in the name is unexplained and may denote a variant or the uploader's numbering, so open the archive to see which images it holds. Such files are used to restore a laptop with a corrupted SPI flash by writing the image with an external programmer. Before relying on it, match the motherboard number on your PCB to the dump's source, back up the existing chip, and confirm the extracted image size equals 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 →