Working BIOS dump for a Lenovo G500, marked OK and tagged with KB9012, the ENE embedded controller fitted on the board. The 8.00 MB raw binary matches a 64 Mbit SPI flash; the KB9012 has its own internal firmware, which is programmed separately through its dedicated interface. No board number is stated, so check the mainboard before writing. Back up the original chip, verify image size, and if the laptop still fails to power on, consider reflashing the EC as well.
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 .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 →