NM-C631 BIOS Dump

Part of NM-C631

This page collects 3 BIOS files for NM-C631. The board is used in the Lenovo ThinkPad L14 Gen 1, Lenovo ThinkPad GL40 and Lenovo ThinkPad GL40-GL5A0. The uploader marked 2 as tested/working. 1 has a cleaned Intel ME region. Board revisions: 1.0.

BIOS files 3

FileSizeRevAddedSource
25.4 MB
1.0
Get on Telegram BIOS Archive
7.7 MB
1.0
Get on Telegram BIOS Archive

Laptops that use NM-C631

  • Lenovo ThinkPad L14 Gen 1
  • Lenovo ThinkPad GL40
  • Lenovo ThinkPad GL40-GL5A0

What these files are for

A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.

Tools to open these files

FormatWhat it isOpen with
.rarRAR archive7-Zip or WinRAR
.binBIOS image inside the archive (usually .bin)a CH341A, XGecu T48 / TL866II Plus or RT809H programmer