KBEC firmware for the embedded controller on the Lenovo board NM-C741, version 1.0. The NM- numbering identifies an LCFC design, the ODM that produces many ThinkPad boards. The name does not state the laptop model, so confirm the board number printed on the PCB. An EC image is used to recover machines with power-on, charging, or keyboard failures caused by corrupted controller firmware. Back up the chip before writing with a programmer, and check that the file size suits the target device.
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 →