EC firmware for the LCFC motherboard NM-A361, a Lenovo board, packaged as a small 38.7 KB RAR. The embedded controller handles power sequencing, battery charging, keyboard and fan control, so a corrupt EC image often causes no-power or no-charge faults. LCFC, the Lenovo-owned ODM, uses the NM- prefix for its board numbers. Flash the EC chip or region with a suitable programmer after saving the original, and confirm that the board number printed on your PCB is NM-A361.
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 →