NM-B242 BIOS Dump
Part of NM-B242
NM-B242: 8 BIOS files found in the source channels. The board is used in the Lenovo IdeaPad DG421, Lenovo IdeaPad DG521, Lenovo IdeaPad 320 15IKB and Lenovo IdeaPad DG721. The uploader marked 4 as tested/working. Board revisions: 1.0.
BIOS files 8
FileSizeRevAddedSource
Laptops that use NM-B242
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
| Format | What it is | Open with |
|---|---|---|
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |