THINKPAD T450 NM A251 REV 1 0 2014 10 28 U49 BIOS & EC
BIOSEC
6.2 MB · first posted in BIOS Archive
Get on TelegramWhat the file name tells us
| Brand | Lenovo |
|---|---|
| Model | Lenovo ThinkPad T450 |
| Board | NM-A251 |
| ODM | LCFC |
| Revision | 1.0 |
| Kind | BIOS, EC |
| Format | .zip |
| Date in file name | 2014-10-28 |
| Archive size | 6.2 MB |
| First posted | 2021-12-30 |
| 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.
EC (embedded controller) firmware runs the keyboard controller, power sequencing, battery charging and fans. Depending on the board it lives in a separate chip (ENE KB9012, ITE IT85xx, Nuvoton NPCE) or inside the main SPI image, so check which applies before flashing.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .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 |
Other files for NM-A251
FileSizeRevAddedSource
NM-A251 BDV PDF
SchematicBoardview.bdv.pdf
366 KB
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