BIOS and EC firmware for the Lenovo laptop board NM-D341, revision 2.0, with a 32 MB BIOS image; the RAR archive is 41.5 MB. The NM-xxxx pattern belongs to LCFC, the Lenovo-owned board maker. The package lets a technician restore both the main SPI flash and the embedded controller firmware when a machine stays dead or shows charging and power faults. Match the board number and revision, back up both chips before writing, and confirm the chip capacity fits the 32 MB 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 @biosarchive. 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 →