NM-B521 BIOS Dump
Part of NM-B521
NM-B521: 7 BIOS files found in the source channels. The board is used in the Lenovo ThinkPad X280. The uploader marked 4 as tested/working. 1 has a cleaned Intel ME region. Board revisions: 1.0 and 2.0.
BIOS files 7
FileSizeRevAddedSource
BIOS EX280 NM-B521 REV 2.0 2018-03-29 CLEAN ME OKOK
BIOSTestedClean ME
6.2 MB
2.0
Get on Telegram BIOS Archive
From the uploader
EX280 NM-B521 REV 2.0 2018-03-29
BIOS & EC & MEC
Laptops that use NM-B521
- Lenovo ThinkPad X280
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 |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |