NM-B321 BIOS Dump
Part of NM-B321
This page collects 15 BIOS files for NM-B321. The board is used in the Lenovo IdeaPad DG425, Lenovo IdeaPad DG525, Lenovo IdeaPad 320 14IKB and Lenovo IdeaPad 320-15AST. The uploader marked 6 as tested/working. Board revisions: 1.0 and 0.2.
BIOS files 15
FileSizeRevAddedSource
From the uploader
LENOVO 320-15ACL DG425 DG525 DG725 NM-B321 REV 0.2 2017-01-11 CPU A6-9220 R4AMD
Laptops that use NM-B321
- Lenovo IdeaPad DG425
- Lenovo IdeaPad DG525
- Lenovo IdeaPad 320 14IKB
- Lenovo IdeaPad 320-15AST
- Lenovo 320 15ACL
- Lenovo 330-15AST
- Lenovo IdeaPad 320
- Lenovo IdeaPad 320-15AST 80XV
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 |