Binary BIOS dump for the Lenovo ThinkPad X260, board NM-A531 revision 3.0, compressed into a 5.28 MB ZIP. The NM-A531 number follows LCFC's numbering pattern for Lenovo-built boards. The name does not say whether the ME region is cleaned, so treat it as a raw dump. Write it with a CH341A or a similar SPI programmer to recover a non-booting board. Before that, make sure your PCB revision matches and read the original chip for safekeeping.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →