BIOS image for the Lenovo G50-30 laptop, version A7CN48WW, with a 64 suffix in the name whose meaning is not stated, packed as a 2.49 MB RAR. The associated board NM-A311 follows the LCFC numbering scheme, Lenovo's own ODM. A dump like this is used to reflash the SPI chip when the machine powers on with no display or loops after a failed update. Confirm the NM-A311 marking on your board, back up the existing chip, and ensure the file size fits the installed flash part.
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.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 31 Jan 2017 | Open file on RM Schematics |
| @biosarchive | 16 Feb 2017 | Open file on RM Schematics |
| @generalbios | 26 Oct 2023 | Open file on RM Schematics |
| @generalbios | 26 Oct 2023 | Open file on RM Schematics |
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 →