Second copy of a RAM disable BIOS for Lenovo boards numbered NM-D031, a 16MB binary modified to disable the soldered memory so the laptop can boot from the SODIMM slot alone. It may differ slightly from the other version circulating, so compare both before choosing. NM-D031 follows the LCFC numbering for Lenovo notebooks. Use an SPI programmer to write it, and keep a backup of the original chip in case the onboard memory is later replaced and the stock firmware is needed.
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 @CLRINDORE. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →