CIUYA YB SA SB SD LA E541P REV 1 0 2017 10 13 BIOS & EC NPCE388NA
BIOSEC
12.5 MB · first posted in BIOS Archive
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CIUYA YB SA SB SD LA-E541P REV 1.0 2017-10-13 BIOS & EC NPCE388NA EC
What the file name tells us
| Brand | Lenovo |
|---|---|
| Board | LA-E541P |
| ODM | Compal |
| Revision | 1.0 |
| Kind | BIOS, EC |
| Format | .rar |
| EC / KBC chip | NPCE388NA |
| Date in file name | 2017-10-13 |
| Archive size | 12.5 MB |
| First posted | 2024-05-20 |
| 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.
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 |
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