NM-B452 BIOS Dump
Part of NM-B452
NM-B452: 10 BIOS files found in the source channels. The board is used in the Lenovo IdeaPad EG521, Lenovo IdeaPad EG522, Lenovo IdeaPad 320 15IKB and Lenovo IdeaPad 520 15IKB. The uploader marked 2 as tested/working. 1 has a cleaned Intel ME region. Board revisions: 1.0.
BIOS files 10
FileSizeRevAddedSource
ideapad EG521 EG522 EZ511 EG721 NM-B452 REV 1.0 CLEAR ME
BIOSTestedClean ME
5.1 MB
1.0
Get on Telegram BIOS Archive
From the uploader
BIOS
Lenovo IdeaPad 320-15IKB (Type 81BG, 81BT) NM-B452
8MB.bin
ITE.bin
Lenovo IdeaPad 320-15IKB (Type 80XL, 80YE) NM-B452
520-15IKB EG521 EG522 EZ511 EG721 NM-B452 REV 1.0 2017.07.03 TESTED OK
LENOVO_IdeaPad_320_15IKB_520_15IKB_EG521_EG522_EZ511_EG721_NM_B452 2017-07-03 WORKING BIOS & KBEC 100%
Laptops that use NM-B452
- Lenovo IdeaPad EG521
- Lenovo IdeaPad EG522
- Lenovo IdeaPad 320 15IKB
- Lenovo IdeaPad 520 15IKB
- Lenovo EG523
- Lenovo IdeaPad 4WCN41WW
- Lenovo IP520
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 |
|---|---|---|
| .7z | 7-Zip archive | 7-Zip or WinRAR |
| .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 |