Lenovo B50-45 20380 ZAWBA ZAWBB LA-B291P REV 1.0 BIOS+EC
BIOSEC
2.4 MB · first posted in BIOS Archive
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APU: AMD E1-Series E1-6010 (EM6010IUJ23JB)
KBC: NPEC288NA0DX
BIOS: QH64-104HIP
What the file name tells us
| Brand | Lenovo |
|---|---|
| Model | Lenovo 20380 |
| Model | Lenovo B50-45 |
| Board | LA-B291P |
| ODM | Compal |
| Revision | 1.0 |
| Kind | BIOS, EC |
| Format | .rar |
| Archive size | 2.4 MB |
| First posted | 2018-06-23 |
| Channel | BIOS Archive |
Parsed automatically from the file name and caption. Always compare the board number with the one printed on your board.
Same file in other posts
| Channel | Posted | Size | Link |
|---|---|---|---|
| BIOS Archive | 2018-06-23 | 2.4 MB | Open post |
| BIOS Archive | 2018-09-12 | 2.4 MB | Open post |
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 |
|---|---|---|
| .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 LA-B291P
FileSizeRevAddedSource
LENOVO B50-45 Compal ZAWBB LA-B291P Boardview (BDV)
Boardview.bdv
224 KB
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