NM-A821 BIOS Dump 8MB
Part of NM-A821
NM-A821: 9 BIOS files found in the source channels. The board is used in the Lenovo ThinkPad E470, Lenovo E470C and Lenovo UC8. Image size: 8 MB. The uploader marked 5 as tested/working. 2 have a cleaned Intel ME region. Board revisions: 3.0, 1.0, 2.0 and 4.0.
BIOS files 9
FileSizeRevAddedSource
CE470 NM-A821 REV 4.0 2017-07-21 8MB WORKING BIOS 100%
BIOS8 MBTested
6.6 MB
4.0
Get on Telegram BIOS Archive
CE470 NM-A821 REV 3.0 2016-10-24 8MB BIOS & KBEC
BIOSEC8 MBClean ME
9.7 MB
3.0
Get on Telegram BIOS Archive
CE470 NM-A821 REV 3.0 2016-10-24 WORKING BIOS 100%
BIOSTestedClean ME
28.4 MB
3.0
Get on Telegram BIOS Archive
Laptops that use NM-A821
- Lenovo ThinkPad E470
- Lenovo E470C
- Lenovo UC8
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 |