Small ZIP archive, only 40.1 KB, linked by its name to the Lenovo G50-80, with an a361 tag that is not explained. Its size is far too small for a full main BIOS image, so it likely holds an EC firmware, a partial region or a patch; inspect the contents first. No board number or revision is given. Do not write it to the main SPI chip as a complete dump, compare it with your board's flash layout, and back up the original chip before making any changes.
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 →