Firmware dump for a board coded GS55C with board number NM-C952 at revision 1.0, archived as a 6.43 MB RAR. NM-xxxx is the LCFC numbering pattern used for Lenovo laptops, though the model is not named. The image is meant for direct SPI programming with an external programmer when the BIOS is corrupted. Read and keep the original chip contents first, confirm that the board shows NM-C952, and check that the image size equals the flash chip capacity 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 @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 →