48.4YZ31.001 – HP ProBook 450 G0
The 48.4YZ31.001 (Wistron) motherboard is found in the HP ProBook 450 G0 and HP ProBook G440 G0. 2 files are indexed for this board: 2 BIOS files.
First posted in March 2018 in BIOS Archive.
BIOS dumps 2
Board facts
| Board number | 48.4YZ31.001 |
|---|---|
| Designed by | Wistron |
| First seen | 2018-03-14 |
| Source channels | BIOS Archive |
| About the number | Wistron PCB part numbers (448.xxxxx.xxxx or 48.4xxxx.xxx) identify the bare PCB of a Wistron board. |
Laptops that use 48.4YZ31.001
- HP ProBook 450 G0
- HP ProBook G440 G0
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 |
|---|---|---|
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
Questions
Which laptops use the 48.4YZ31.001 board?
Files in the catalog link 48.4YZ31.001 to the HP ProBook 450 G0 and HP ProBook G440 G0.
Who designed the 48.4YZ31.001 board?
48.4YZ31.001 is a Wistron board number used by HP.
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.