Embedded controller firmware for Lenovo LCFC board NM-B441, written for the ITE IT8586E EC chip, in a small 7z archive of about 38 KB. The EC handles power-on sequencing, battery charging, keyboard and fan control, so a corrupted EC image often causes no power or charging faults. Program it only to the matching controller or its EC flash, using a suitable programmer. Check the board number on the PCB and the EC part marking, and keep a read of the original firmware before writing.
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.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →