Firmware archive for the Lenovo G570, labelled with the code 20079, which is likely the machine type, though the name gives no motherboard number or revision. Because the board is not stated, identify the PCB code yourself and confirm it suits this image before use. Such dumps are written to the SPI BIOS chip with a programmer like CH341A to revive a board that does not post. Read and save the existing chip contents first and check that the image size matches the flash chip capacity.
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 @Laptopdesktopbios. 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 →