BIOS image for the Lenovo G580 on an LG4858 board, UMA version, meaning integrated graphics only without a discrete GPU. The binary is 8.00 MB, consistent with a 64 Mbit SPI flash. UMA and discrete-graphics boards often need different firmware, so confirm the board has no dedicated GPU before use. Write the file with an SPI programmer such as CH341A or RT809H after saving the original chip contents, and check the board marking matches LG4858.
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 @bios_laptop. 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 →