NM-B291 BIOS Dump 8MB
Part of NM-B291
2 BIOS files for NM-B291 are indexed here. The board is used in the Lenovo Yoga 920 and Lenovo Yoga 920-13IKB. Image size: 8 MB. 1 of them is marked as tested by the uploader. Board revisions: 1.0. 1 is a VIP/paid post in the source channel.
BIOS files 2
FileSizeRevAddedSource
Laptops that use NM-B291
- Lenovo Yoga 920
- Lenovo Yoga 920-13IKB
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 |