Embedded controller firmware for the ITE EC on LCFC board NM-C791, a small 91.3 KB ZIP associated with Lenovo laptops. LCFC is Lenovo's in-house ODM using NM-xxxx numbers. The EC manages power-on, battery charging, fans and keyboard, so a corrupted image can cause no power or charging faults. The file is written to the ITE chip or its external flash with a suitable programmer. Check the EC part number and board revision first and save the original contents before flashing.
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 @efibios. Enginerys does not host this file.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @efibios | 5 Jan 2022 | Open file on RM Schematics |
| @pepeelectronica | 26 Apr 2022 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 2 Aug 2026 | Open file on RM Schematics |
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →