LA-D891P – Dell Latitude 5285
The Dell Latitude 5285 is built on the LA-D891P board designed by Compal. 2 files are indexed for this board: 1 BIOS file, 1 schematic and 1 boardview.
File names mention revision 1.0. ODM project name: BAJ00. The earliest file dates from July 2022 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 1
Schematics 1
Board facts
| Board number | LA-D891P |
|---|---|
| Designed by | Compal |
| Platform group | LA-D |
| ODM project | BAJ00 |
| Revisions | 1.0 |
| First seen | 2022-07-09 |
| 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-D891P
- Dell Latitude 5285
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 |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .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
Which laptops use the LA-D891P board?
Files in the catalog link LA-D891P to the Dell Latitude 5285.
Who designed the LA-D891P board?
LA-D891P is a Compal board number used by Dell.
Is there a boardview for LA-D891P?
Yes, 1 boardview file in .bdv format.
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.