223111-1 – Dell Latitude 5550
223111-1 is the Wistron main board used in the Dell Latitude 5550. 2 files are indexed for this board: 2 BIOS files.
The BIOS dumps are 64 MB images. First posted in December 2024 in BIOS Archive.
BIOS dumps 2
Board facts
| Board number | 223111-1 |
|---|---|
| Designed by | Wistron |
| Platform group | 223XXX |
| BIOS chip size | 64 MB |
| First seen | 2024-12-02 |
| Source channels | BIOS Archive |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use 223111-1
- Dell Latitude 5550
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.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .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 223111-1 board?
Files in the catalog link 223111-1 to the Dell Latitude 5550.
Who designed the 223111-1 board?
223111-1 is a Wistron board number used by Dell.
What BIOS chip size does 223111-1 use?
The BIOS images for 223111-1 are 64 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.