Raw 16 MB binary BIOS dump for the Lenovo ThinkPad X280 on board NM-B521. The NM- prefix follows LCFC numbering, the Lenovo ODM that designs many ThinkPad boards. The file size suits a 128 Mbit SPI flash chip, and it can be written directly with a hardware programmer. ThinkPad flash often stores machine-specific data such as serial and UUID. Read and archive the original chip first, and verify the NM-B521 marking on the PCB before you flash this image.
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 .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 →