Zipped BIOS dump for the Lenovo G470 laptop, and the okkkk in the name suggests the uploader confirmed it working on a repaired unit. No board number, revision or firmware version is given, so identify your motherboard by the code printed on the PCB before relying on it. The 1.68 MB archive likely holds a compressed image for the SPI flash. Extract it, check that the image size equals your chip capacity, save the original contents with your programmer, then write and verify the image.
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 →