Modified BIOS archive for what the name suggests is a Lenovo G510, labelled as a personal edit, so treat its contents with caution. No board number or revision is given. The 3.11 MB RAR needs to be unpacked and the image size checked against the SPI flash chip before writing with a programmer such as a CH341A. Edited dumps may contain altered settings or another unit's serial data. Back up the original chip first so you can revert if the board fails to start.
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 →