LA-E841P – HP 15
LA-E841P is the Compal main board used in the HP 15, HP TPN-C130, HP 15-bw049ur and HP 15-bw057ur. The catalog lists 12 files for it: 10 BIOS files, 1 schematic and 5 EC firmware images.
File names mention revision 2.0 or 1.0. The BIOS dumps are 8 MB images. ODM project names: CTL51, CYL51 and CTL53. First posted in January 2020 in BIOS Archive and Schematics & Boardviews Archive.
BIOS dumps 10
Schematics 1
EC / KBC firmware 1
From the uploader
HP TPN-C130 CTL51 CTL53 LA-E841P REV 1.0 2017-04-21 AMD E2-9000E
Board facts
| Board number | LA-E841P |
|---|---|
| Designed by | Compal |
| Platform group | LA-E |
| ODM project | CTL51, CYL51, CTL53 |
| Revisions | 2.0, 1.0 |
| BIOS chip size | 8 MB |
| Flash chip | W25Q64FWS |
| EC / KBC chip | KB9022Q |
| First seen | 2020-01-08 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-E841P
- HP 15
- HP TPN-C130
- HP 15-bw049ur
- HP 15-bw057ur
- HP 15 BW625UR
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.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
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 |
|---|---|---|
| .7z | 7-Zip archive | 7-Zip or WinRAR |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .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-E841P board?
Files in the catalog link LA-E841P to the HP 15, HP TPN-C130, HP 15-bw049ur, HP 15-bw057ur and HP 15 BW625UR.
Is there a boardview for LA-E841P?
No boardview has been indexed for LA-E841P yet; the schematic is available on this page.
What BIOS chip size does LA-E841P use?
The BIOS images for LA-E841P are 8 MB. Flash chips named in the files: W25Q64FWS.
Who designed the LA-E841P board?
LA-E841P is a Compal board number used by HP.
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.