LA-E831P – HP 15-BW
LA-E831P is the Compal main board used in the HP 15-BW, HP 15-bw015ur, HP 15-bw032wm and HP CTL51-53. 3 files are indexed for this board: 3 BIOS files and 1 EC firmware image.
Revisions seen in file names: 2.0. ODM project name: CTL51. First posted in June 2019 in BIOS Archive.
BIOS dumps 3
Board facts
| Board number | LA-E831P |
|---|---|
| Designed by | Compal |
| Platform group | LA-E |
| ODM project | CTL51 |
| Revisions | 2.0 |
| First seen | 2019-06-09 |
| 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-E831P
- HP 15-BW
- HP 15-bw015ur
- HP 15-bw032wm
- HP CTL51-53
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 |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the LA-E831P board?
LA-E831P is a Compal board number used by HP.
Which laptops use the LA-E831P board?
Files in the catalog link LA-E831P to the HP 15-BW, HP 15-bw015ur, HP 15-bw032wm and HP CTL51-53.
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.