LA-3581P – Acer 5520
The Acer 5520 and Acer Aspire 7520G-502G50MI are built on the LA-3581P board designed by Compal. 3 files are indexed for this board: 2 BIOS files and 1 schematic.
File names mention revision 1.0 or 2.0. ODM project name: ICW50. The earliest file dates from December 2019 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 2
Schematics 1
From the uploader
Compal ICW50 LA-3581P Rev: 2.0
ENE KB926QF B1
EON F80-100HCP SOIC-8
Board facts
| Board number | LA-3581P |
|---|---|
| Designed by | Compal |
| Platform group | LA-3 |
| ODM project | ICW50 |
| Revisions | 1.0, 2.0 |
| First seen | 2019-12-23 |
| 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-3581P
- Acer 5520
- Acer Aspire 7520G-502G50MI
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
Who designed the LA-3581P board?
LA-3581P is a Compal board number used by Acer.
Which laptops use the LA-3581P board?
Files in the catalog link LA-3581P to the Acer 5520 and Acer Aspire 7520G-502G50MI.
Is there a boardview for LA-3581P?
No boardview has been indexed for LA-3581P 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.