Eight-megabyte BIOS image for a Lenovo laptop on board NM-A273, with the Intel Management Engine region cleaned. NM-xxxx is the board numbering used by LCFC, Lenovo's ODM. A cleaned ME region lets the firmware rebuild ME settings, which often fixes boards that shut down after 30 minutes or boot slowly following a chip swap. Write it to the 64 Mbit SPI flash with a programmer, back up the original first to preserve the serial number, and confirm the NM-A273 marking on the PCB.
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 @biosarchive. 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 →