LENOVO X280 Type 20KF,20KE Laptop Thinkpad Type 20KE EX280 NM B521
BIOS
6.3 MB · first posted in BIOS Archive
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LENOVO X280 (Type 20KF,20KE) Laptop (Thinkpad) Type 20KE EX280 NM-B521 REV 1.0 2017-10-06
What the file name tells us
| Brand | Lenovo |
|---|---|
| Board | NM-B521 |
| ODM project | EX280 |
| ODM | LCFC |
| Kind | BIOS |
| Format | .rar |
| Archive size | 6.3 MB |
| First posted | 2025-08-20 |
| Channel | BIOS Archive |
Parsed automatically from the file name and caption. Always compare the board number with the one printed on your board.
What this kind of file is 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 |
Other files for NM-B521
FileSizeRevAddedSource
BIOS EX280 NM-B521 REV 2.0 2018-03-29 CLEAN ME OKOK
BIOSTestedClean ME
6.2 MB
2.0
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