203068-1 – Dell Latitude 3420
The Dell Latitude 3420 is built on the 203068-1 board designed by Wistron. ChambersDesignInc.com has indexed 7 files for this board — 4 BIOS files, 2 schematics and 1 boardview.
The BIOS dumps are 32 MB images. The earliest file dates from August 2022 (Schematics & Boardviews Archive, BIOS Archive and Cyberlan Electronics).
BIOS dumps 4
Schematics 2
Boardviews 1
From the uploader
Latitude 3420 cyborg-L14 MB TGL 203068-1 _CYBORG-L14 TGL (203068-1 X3XR2)
Cyborg_TGL REV A00 PDF
Wistron Cyborg-N V L 14 15_TGL-U & Watchmen 14N TGL-U- 213047 - 213047-1 - 203068 - 203068-1 - 203070-1
Cyborg_TGL REV X01 PDF
Wistron Cyborg-N V L 14 15_TGL-U & Watchmen 14N TGL-U- 213047 - 213047-1 - 203068 - 203068-1 - 203070-1
Board facts
| Board number | 203068-1 |
|---|---|
| Designed by | Wistron |
| Platform group | 203XXX |
| BIOS chip size | 32 MB |
| CPU generation | Intel 11th gen |
| First seen | 2022-08-09 |
| Source channels | Schematics & Boardviews Archive, BIOS Archive, Cyberlan Electronics |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use 203068-1
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 |
|---|---|---|
| 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
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.
Who designed the 203068-1 board?
203068-1 is a Wistron board number used by Dell.
Which laptops use the 203068-1 board?
Files in the catalog link 203068-1 to the Dell Latitude 3420.
Is there a boardview for 203068-1?
Yes, 1 boardview file.
What BIOS chip size does 203068-1 use?
The BIOS images for 203068-1 are 32 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.