Compressed archive labelled only Y570, most likely firmware for the Lenovo IdeaPad Y570, though the name gives no brand, board number or revision. The 1.58 MB size suggests a compressed image that unpacks to a standard SPI flash dump, so check the extracted size against the chip on your board. Technicians use such dumps to reprogram the BIOS chip with a hardware programmer after a failed update or corruption. Confirm the motherboard model before writing and keep a copy of the original contents.
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 →