LA-E131P – Dell Latitude 7480
LA-E131P is the Compal main board used in the Dell Latitude 7480 and Dell 7480. The catalog lists 16 files for it: 12 BIOS files, 2 schematics and 2 boardviews.
File names mention revision 1.0 or 2.0. BIOS images are 16 MB. ODM project name: CAZ20. First posted in February 2021 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 12
Schematics 2
Boardviews 2
From the uploader
Dell LA-E131P Rev 1.0 Official v1.4.6 Clean 16 MB BIOS
TPM ERROR SOLVED
Board facts
| Board number | LA-E131P |
|---|---|
| Designed by | Compal |
| Platform group | LA-E |
| ODM project | CAZ20 |
| Revisions | 1.0, 2.0 |
| BIOS chip size | 16 MB |
| Flash chip | W25Q128FVSIQ |
| CPU generation | Intel 6th gen, Intel 7th gen |
| First seen | 2021-02-15 |
| 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-E131P
- Dell Latitude 7480
- Dell 7480
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 |
|---|---|---|
| .bdv | Honhan .bdv boardview | OpenBoardView, FlexBV or Honhan BoardViewer |
| .cad | .cad boardview | FlexBV, OpenBoardView or BoardViewer |
| 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
Who designed the LA-E131P board?
LA-E131P is a Compal board number used by Dell.
Is there a boardview for LA-E131P?
Yes, 2 boardview files in .bdv and .cad format.
Are these files free?
1 of the posts are marked VIP or paid in their source channel; the others are ordinary posts. ChambersDesignInc.com does not host or sell files.
What BIOS chip size does LA-E131P use?
The BIOS images for LA-E131P are 16 MB. Flash chips named in the files: W25Q128FVSIQ.
Which laptops use the LA-E131P board?
Files in the catalog link LA-E131P to the Dell Latitude 7480 and Dell 7480.
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.