LA-B071P – Dell Latitude 3550
The LA-B071P (Compal) motherboard is found in the Dell Latitude 3550 and Dell Latitude 3450. The catalog lists 6 files for it: 3 BIOS files, 2 schematics and 1 boardview.
File names mention revision 1.0. The BIOS dumps are 8 MB images. ODM project names: ZAL50 and ZAL60. First posted in February 2018 in Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive.
BIOS dumps 3
Schematics 2
Boardviews 1
Board facts
| Board number | LA-B071P |
|---|---|
| Designed by | Compal |
| Platform group | LA-B |
| ODM project | ZAL50, ZAL60 |
| Revisions | 1.0 |
| BIOS chip size | 8 MB |
| First seen | 2018-02-10 |
| Source channels | Schematics & Boardviews Archive, Cyberlan Electronics, BIOS Archive, BIOS Skema Boardview Laptop |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-B071P
- Dell Latitude 3550
- Dell Latitude 3450
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 |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the LA-B071P board?
LA-B071P is a Compal board number used by Dell.
Is there a boardview for LA-B071P?
Yes, 1 boardview file in .bdv and .cad format.
Which laptops use the LA-B071P board?
Files in the catalog link LA-B071P to the Dell Latitude 3550 and Dell Latitude 3450.
What BIOS chip size does LA-B071P use?
The BIOS images for LA-B071P are 8 MB.
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.