LA-4102P – HP Pavilion DV4
The HP Pavilion DV4, HP Pavilion CQ40 and HP Pavilion CQ45 are built on the LA-4102P board designed by Compal. ChambersDesignInc.com has indexed 7 files for this board — 3 BIOS files, 3 schematics and 1 boardview.
File names mention revision 0.4. ODM project name: JAL50. The earliest file dates from February 2017 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 3
Schematics 3
Boardviews 1
Board facts
| Board number | LA-4102P |
|---|---|
| Designed by | Compal |
| Platform group | LA-4 |
| ODM project | JAL50 |
| Revisions | 0.4 |
| Graphics | discrete GPU, UMA (integrated) |
| First seen | 2017-02-06 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-4102P
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.
A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| 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
Is there a boardview for LA-4102P?
Yes, 1 boardview file.
Which laptops use the LA-4102P board?
Files in the catalog link LA-4102P to the HP Pavilion DV4, HP Pavilion CQ40 and HP Pavilion CQ45.
Who designed the LA-4102P board?
LA-4102P 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.