LA-B072P – Dell Latitude 3550
The Dell Latitude 3550 and Dell 3550 are built on the LA-B072P board designed by Compal. 7 files are indexed for this board: 2 BIOS files, 3 schematics and 2 boardviews.
File names mention revision 0.1. ODM project names: ZAL50 and ZAL60. The earliest file dates from January 2019 (Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive).
BIOS dumps 2
Schematics 3
Boardviews 2
Board facts
| Board number | LA-B072P |
|---|---|
| Designed by | Compal |
| Platform group | LA-B |
| ODM project | ZAL50, ZAL60 |
| Revisions | 0.1 |
| First seen | 2019-01-21 |
| Source channels | Schematics & Boardviews Archive, Cyberlan Electronics, BIOS Archive |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-B072P
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 |
| .brd | .brd boardview (Test_Link format) | OpenBoardView, FlexBV or 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-B072P board?
LA-B072P is a Compal board number used by Dell.
Is there a boardview for LA-B072P?
Yes, 2 boardview files in .bdv, .brd and .cad format.
Which laptops use the LA-B072P board?
Files in the catalog link LA-B072P to the Dell Latitude 3550 and Dell 3550.
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.