18809-2 – Lenovo ThinkPad P1
The Lenovo ThinkPad P1 is built on the 18809-2 board designed by Wistron. ChambersDesignInc.com has indexed 3 files for this board — 2 BIOS files and 1 boardview.
BIOS images are 2 MB. First posted in February 2023 in BIOS Archive, Cyberlan Electronics and Schematics & Boardviews Archive.
BIOS dumps 2
Boardviews 1
Board facts
| Board number | 18809-2 |
|---|---|
| Designed by | Wistron |
| Platform group | 18XXX |
| BIOS chip size | 2 MB |
| First seen | 2023-02-16 |
| Source channels | BIOS Archive, Cyberlan Electronics, Schematics & Boardviews Archive |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use 18809-2
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 boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .bdv | Honhan .bdv boardview | OpenBoardView, FlexBV or Honhan BoardViewer |
| .brd | .brd boardview (Test_Link format) | OpenBoardView, FlexBV or BoardViewer |
| .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 18809-2 board?
Files in the catalog link 18809-2 to the Lenovo ThinkPad P1.
Is there a boardview for 18809-2?
Yes, 1 boardview file in .bdv and .brd format.
What BIOS chip size does 18809-2 use?
The BIOS images for 18809-2 are 2 MB.
Who designed the 18809-2 board?
18809-2 is a Wistron board number used by Lenovo.
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.