BIOS image for the Lenovo ThinkPad L480, labelled as an unlocked build and stored as a 16.0 MB raw binary. The name gives no board number or BIOS version, so it says nothing about what exactly was unlocked; on ThinkPads this usually refers to a removed supervisor password or opened settings. A 16 MB image corresponds to a 128 Mbit SPI chip. Read and save the original chip with a programmer before writing, and keep the board's own serial and MAC data where possible, since a donor image carries someone else's identifiers.
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 @biosfilebins. 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 →