Lenovo IdeaPad Z510 firmware package for the NM-A181 motherboard, revision 1.0, discrete graphics (DIS) version. According to the name the archive holds both the system BIOS and the EC (embedded controller) firmware, packed as a 4.09 MB RAR. NM-A prefixed numbers follow the LCFC pattern used for Lenovo boards. Use it to reflash the SPI chip with a programmer such as a CH341A, but first read and save the original contents, and confirm the board number, revision and DIS layout printed on the PCB match 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 →