LA-K491P – Dell Latitude 5420
The Dell Latitude 5420 is built on the LA-K491P board designed by Compal. 11 files are indexed for this board: 9 BIOS files, 1 schematic and 1 boardview.
Revisions seen in file names: 2.0 and 3.0. BIOS images are 32 MB. ODM project name: GDF40. First posted in January 2022 in BIOS Archive, Cyberlan Electronics and BIOS Skema Boardview Laptop.
BIOS dumps 9
Schematics 1
Boardviews 1
From the uploader
GDF40 LA-K491P REV 2.0(A01) 2020-11-16 TESTED OK
Board facts
| Board number | LA-K491P |
|---|---|
| Designed by | Compal |
| Platform group | LA-K |
| ODM project | GDF40 |
| Revisions | 2.0, 3.0 |
| BIOS chip size | 32 MB |
| CPU generation | Intel 11th gen |
| First seen | 2022-01-03 |
| Source channels | BIOS Archive, Cyberlan Electronics, BIOS Skema Boardview Laptop, Schematics & Boardviews Archive |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-K491P
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
Is there a boardview for LA-K491P?
Yes, 1 boardview file in .bdv and .cad format.
Who designed the LA-K491P board?
LA-K491P is a Compal board number used by Dell.
Which laptops use the LA-K491P board?
Files in the catalog link LA-K491P to the Dell Latitude 5420.
What BIOS chip size does LA-K491P use?
The BIOS images for LA-K491P are 32 MB.
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.
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.