17821-2 – Lenovo ThinkPad L380
The Lenovo ThinkPad L380 and Lenovo Yoga L380 are built on the 17821-2 board designed by Wistron. The catalog lists 6 files for it: 6 BIOS files.
The BIOS dumps are 1 MB images. First posted in September 2021 in BIOS Archive.
BIOS dumps 6
Board facts
| Board number | 17821-2 |
|---|---|
| Designed by | Wistron |
| Platform group | 17XXX |
| Also known as | 448.0CT04.0021 |
| BIOS chip size | 1 MB |
| CPU generation | Intel 8th gen |
| First seen | 2021-09-30 |
| 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 17821-2
- Lenovo ThinkPad L380
- Lenovo Yoga L380
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
Who designed the 17821-2 board?
17821-2 is a Wistron board number used by Lenovo.
What BIOS chip size does 17821-2 use?
The BIOS images for 17821-2 are 1 MB.
Which laptops use the 17821-2 board?
Files in the catalog link 17821-2 to the Lenovo ThinkPad L380 and Lenovo Yoga L380.
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.