Compressed ZIP archive of 1.58 MB holding BIOS firmware for a Y570, which by naming convention is the Lenovo IdeaPad Y570. The name does not list the archive contents, board number or version, so open it and inspect the files before use. Archives like this often contain a raw chip dump and sometimes EC firmware. Check the board number printed on the PCB, back up the original SPI chip, and confirm the extracted image size matches the chip capacity before programming.
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 @biosbigarchives. 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 →