LA-8821P – Dell XPS 12
The LA-8821P (Compal) motherboard is found in the Dell XPS 12 and Dell XPS 12 9Q23. The catalog lists 8 files for it: 6 BIOS files, 1 schematic, 1 boardview and 1 EC firmware image.
Revisions seen in file names: 2.0 and 1.0. ODM project names: QAZA0 and QCL40. The earliest file dates from September 2021 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 6
Schematics 1
Boardviews 1
Board facts
| Board number | LA-8821P |
|---|---|
| Designed by | Compal |
| Platform group | LA-8 |
| ODM project | QAZA0, QCL40 |
| Revisions | 2.0, 1.0 |
| Flash chip | 25L6406E |
| First seen | 2021-09-28 |
| 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-8821P
- Dell XPS 12
- Dell XPS 12 9Q23
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 |
|---|---|---|
| .brd | .brd boardview (Test_Link format) | OpenBoardView, FlexBV 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
Is there a boardview for LA-8821P?
Yes, 1 boardview file in .brd format.
Which laptops use the LA-8821P board?
Files in the catalog link LA-8821P to the Dell XPS 12 and Dell XPS 12 9Q23.
Who designed the LA-8821P board?
LA-8821P is a Compal board number used by Dell.
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.