Lenovo G580 BIOS firmware packed in a 2.92 MB RAR archive, without a board number, revision or version in the name. The G580 used more than one motherboard design, so confirm the PCB marking before using the extracted image. Typical use is restoring a corrupted SPI flash with a hardware programmer when the laptop powers on without display. Verify the binary size equals the chip capacity, and dump the original first so product data and keys can be preserved.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →