18769-1 – Dell Inspiron 7391
18769-1 is the Wistron main board used in the Dell Inspiron 7391, Dell Latitude 3301, Dell Latitude E3301 and Dell Vostro 5390. The catalog lists 5 files for it: 3 BIOS files and 2 schematics.
BIOS images are 16 MB. The earliest file dates from April 2021 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 3
Schematics 2
Board facts
| Board number | 18769-1 |
|---|---|
| Designed by | Wistron |
| Platform group | 18XXX |
| BIOS chip size | 16 MB |
| First seen | 2021-04-24 |
| Source channels | BIOS Archive, Schematics & Boardviews 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 18769-1
- Dell Inspiron 7391
- Dell Latitude 3301
- Dell Latitude E3301
- Dell Vostro 5390
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.
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
Who designed the 18769-1 board?
18769-1 is a Wistron board number used by Dell.
Is there a boardview for 18769-1?
No boardview has been indexed for 18769-1 yet; the schematic is available on this page.
What BIOS chip size does 18769-1 use?
The BIOS images for 18769-1 are 16 MB.
Which laptops use the 18769-1 board?
Files in the catalog link 18769-1 to the Dell Inspiron 7391, Dell Latitude 3301, Dell Latitude E3301 and Dell Vostro 5390.
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.