09902-1 – Dell 3300
The 09902-1 (Wistron) motherboard is found in the Dell 3300, Dell DW30 and Dell Vostro 3300-DW30. The catalog lists 3 files for it: 2 BIOS files, 1 schematic and 1 EC firmware image.
The earliest file dates from July 2022 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 2
Schematics 1
Board facts
| Board number | 09902-1 |
|---|---|
| Designed by | Wistron |
| Platform group | 09XXX |
| Graphics | UMA (integrated) |
| First seen | 2022-07-16 |
| 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 09902-1
- Dell 3300
- Dell DW30
- Dell Vostro 3300-DW30
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.
EC (embedded controller) firmware runs the keyboard controller, power sequencing, battery charging and fans. Depending on the board it lives in a separate chip (ENE KB9012, ITE IT85xx, Nuvoton NPCE) or inside the main SPI image, so check which applies before flashing.
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 |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Which laptops use the 09902-1 board?
Files in the catalog link 09902-1 to the Dell 3300, Dell DW30 and Dell Vostro 3300-DW30.
Who designed the 09902-1 board?
09902-1 is a Wistron board number used by Dell.
Is there a boardview for 09902-1?
No boardview has been indexed for 09902-1 yet; the schematic is available on this page.
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.