Duplicate copy of the Hongok unlock ROM for the ThinkPad T460s, 16 MB, whose Chinese tags mean decrypt and direct flash. It is meant to be written directly to the full 128 Mbit SPI chip with a hardware programmer rather than through a software update. Compare it against the first copy to confirm both are intact. Save the board's original firmware beforehand. That backup preserves machine-specific data that may need restoring once the password lock is cleared.
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 .rom file
A BIOS image as shipped by the vendor (commonly AMI) — often the BIOS region only, without descriptor or ME.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →