A tiny 470-byte RAR labelled as a BIOS password bin file for the Lenovo ThinkPad T430s. A file this small cannot be a full BIOS image. It most likely holds a small binary or note used during supervisor password removal, which on ThinkPads involves the separate security EEPROM rather than the main SPI flash. Inspect the contents before writing anything. Always read and save the original EEPROM or flash chip first, because a wrong write can lock the machine further or make it unbootable.
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 @afsbiosfree. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →