LA-B191P – HP ProBook 445 G2
LA-B191P is the Compal main board used in the HP ProBook 445 G2, HP ProBook 455 G2 and HP ProBook ZPL4555. ChambersDesignInc.com has indexed 4 files for this board — 3 BIOS files and 1 schematic.
Revisions seen in file names: 1.0. The BIOS dumps are 8 MB images. ODM project name: ZPL45. First posted in June 2021 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 3
Schematics 1
Board facts
| Board number | LA-B191P |
|---|---|
| Designed by | Compal |
| Platform group | LA-B |
| ODM project | ZPL45 |
| Revisions | 1.0 |
| BIOS chip size | 8 MB |
| First seen | 2021-06-07 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics, Laptop & Desktop BIOS Files |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-B191P
- HP ProBook 445 G2
- HP ProBook 455 G2
- HP ProBook ZPL4555
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 schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
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
Is there a boardview for LA-B191P?
No boardview has been indexed for LA-B191P yet; the schematic is available on this page.
Which laptops use the LA-B191P board?
Files in the catalog link LA-B191P to the HP ProBook 445 G2, HP ProBook 455 G2 and HP ProBook ZPL4555.
What BIOS chip size does LA-B191P use?
The BIOS images for LA-B191P are 8 MB.
Who designed the LA-B191P board?
LA-B191P is a Compal 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.