BIOS binary for a Lenovo G50-70, marked several times as OK, meaning it was reported working, 8 MB in size. The name gives no board number or revision, so compare it with your board before using it. An 8 MB image fits a 64 Mbit SPI flash chip and is written with a programmer such as a CH341A when the machine has corrupt firmware. Read and save the original chip before flashing and verify the write afterwards.
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 .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →