LA-D731P – Lenovo E41-15
LA-D731P is the Compal main board used in the Lenovo E41-15 and Lenovo ThinkPad E41. ChambersDesignInc.com has indexed 5 files for this board — 5 BIOS files and 1 EC firmware image.
File names mention revision 1.0. The earliest file dates from June 2020 (BIOS Archive).
BIOS dumps 5
Board facts
| Board number | LA-D731P |
|---|---|
| Designed by | Compal |
| Platform group | LA-D |
| Revisions | 1.0 |
| First seen | 2020-06-08 |
| Source channels | BIOS Archive |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-D731P
- Lenovo E41-15
- Lenovo ThinkPad E41
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.
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 |
| .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 |
Questions
Which laptops use the LA-D731P board?
Files in the catalog link LA-D731P to the Lenovo E41-15 and Lenovo ThinkPad E41.
Who designed the LA-D731P board?
LA-D731P is a Compal board number used by Lenovo.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.