LA-4581P – Toshiba Satellite A300D
LA-4581P is the Compal main board used in the Toshiba Satellite A300D, Toshiba Satellite A350D and Toshiba Satellite A355D. The catalog lists 4 files for it: 3 BIOS files and 1 schematic.
The earliest file dates from January 2018 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 3
Schematics 1
Board facts
| Board number | LA-4581P |
|---|---|
| Designed by | Compal |
| Platform group | LA-4 |
| First seen | 2018-01-22 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-4581P
- Toshiba Satellite A300D
- Toshiba Satellite A350D
- Toshiba Satellite A355D
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 |
|---|---|---|
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .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 LA-4581P board?
Files in the catalog link LA-4581P to the Toshiba Satellite A300D, Toshiba Satellite A350D and Toshiba Satellite A355D.
Who designed the LA-4581P board?
LA-4581P is a Compal board number used by Toshiba.
Is there a boardview for LA-4581P?
No boardview has been indexed for LA-4581P yet; the schematic is available on this page.
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.