Firmware dump for Lenovo laptops built on LCFC board NM-A362, revision 1.0, platform codes ACLU3 and ACLU4. A sibling board, NM-A361, shares these platform codes, so double-check which number is printed on your PCB before flashing. LCFC uses the NM- prefix for its motherboards. The image is flashed to the SPI chip with a programmer such as a CH341A. Read and save the original chip first, since it holds serial and system data, and make sure the dump matches the chip size.
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 →