LA-A992P – HP ZS050
The LA-A992P (Compal) motherboard is found in the HP ZS050, HP 15-R015DX, HP 15R-ZS050 and HP 250 G3. ChambersDesignInc.com has indexed 23 files for this board — 18 BIOS files, 3 schematics and 4 EC firmware images.
File names mention revision 1.0 or 2.0. BIOS images are 8 MB. ODM project name: ZSO50. First posted in March 2017 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 18
Schematics 3
EC / KBC firmware 2
From the uploader
ZS050 LA-A992P REV 1.0 2014-04-14 CLEAN ME OKOK
FAST_BOOT
Board facts
| Board number | LA-A992P |
|---|---|
| Designed by | Compal |
| Platform group | LA-A |
| ODM project | ZSO50 |
| Revisions | 1.0, 2.0 |
| BIOS chip size | 8 MB |
| EC / KBC chip | KB9012 |
| Graphics | discrete GPU |
| First seen | 2017-03-15 |
| 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-A992P
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.
EC (embedded controller) firmware runs the keyboard controller, power sequencing, battery charging and fans. Depending on the board it lives in a separate chip (ENE KB9012, ITE IT85xx, Nuvoton NPCE) or inside the main SPI image, so check which applies before flashing.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .7z | 7-Zip archive | 7-Zip or WinRAR |
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
Questions
Which laptops use the LA-A992P board?
Files in the catalog link LA-A992P to the HP ZS050, HP 15-R015DX, HP 15R-ZS050, HP 250 G3, HP 15-R, HP 15 R031N, HP 15 R031NE, HP 15R-249TU, HP RO14TX and HP ZSO5O.
Who designed the LA-A992P board?
LA-A992P is a Compal board number used by HP.
Is there a boardview for LA-A992P?
No boardview has been indexed for LA-A992P yet; the schematic is available on this page.
What BIOS chip size does LA-A992P use?
The BIOS images for LA-A992P are 8 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.