19861-1 – Dell Inspiron 5502
19861-1 is the Wistron main board used in the Dell Inspiron 5502, Dell 19861 and Dell Inspiron 5402. 4 files are indexed for this board: 4 BIOS files.
The BIOS dumps are 8 MB and 16 MB images. First posted in August 2021 in BIOS Archive.
BIOS dumps 4
Board facts
| Board number | 19861-1 |
|---|---|
| Designed by | Wistron |
| Platform group | 19XXX |
| BIOS chip size | 8 MB, 16 MB |
| CPU generation | Intel 11th gen |
| First seen | 2021-08-23 |
| 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 19861-1
- Dell Inspiron 5502
- Dell 19861
- Dell Inspiron 5402
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 |
| .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
Which laptops use the 19861-1 board?
Files in the catalog link 19861-1 to the Dell Inspiron 5502, Dell 19861 and Dell Inspiron 5402.
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 19861-1 board?
19861-1 is a Wistron board number used by Dell.
What BIOS chip size does 19861-1 use?
The BIOS images for 19861-1 are 8 MB and 16 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.