Embedded controller (KBEC) firmware for the Lenovo NM-C171 motherboard, in a small RAR archive of about 82 KB. The name gives no laptop model, so identify the machine from the NM-C171 marking on the PCB. LCFC uses NM-xxxx numbering for ThinkPad boards it manufactures. Restoring the EC image helps when a board stays dead, fails to charge, or has keyboard issues while the BIOS itself is fine. Save the original EC contents with a programmer before overwriting them.
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 →