Firmware bundle for the ThinkPad Edge E431 on the Compal VILE1 board NM-A043, combining the system BIOS with EC and KBC (keyboard controller) code in a 5.21 MB RAR archive. NM-prefixed numbers follow the LCFC scheme, although this name also credits Compal for the design. The BIOS image goes onto the SPI flash, while the EC/KBC firmware handles the power button, keyboard and charging logic. Use a programmer to restore whichever is damaged. Back up every chip before writing, and confirm NM-A043 is printed on your PCB.
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 →