LA-A481P – Toshiba Satellite E55
The Toshiba Satellite E55 is built on the LA-A481P board designed by Compal. ChambersDesignInc.com has indexed 2 files for this board — 1 BIOS file, 1 schematic and 1 EC firmware image.
File names mention revision 1.0. First posted in June 2022 in BIOS Skema Boardview Laptop, BIOS Archive and Schematics & Boardviews Archive.
BIOS dumps 1
Schematics 1
Board facts
| Board number | LA-A481P |
|---|---|
| Designed by | Compal |
| Platform group | LA-A |
| Revisions | 1.0 |
| GPU | N14P-GV2-S-A1 |
| Graphics | discrete GPU |
| First seen | 2022-06-05 |
| Source channels | BIOS Skema Boardview Laptop, 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-A481P
- Toshiba Satellite E55
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 |
|---|---|---|
| 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 |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Which laptops use the LA-A481P board?
Files in the catalog link LA-A481P to the Toshiba Satellite E55.
Who designed the LA-A481P board?
LA-A481P is a Compal board number used by Toshiba.
Is there a boardview for LA-A481P?
No boardview has been indexed for LA-A481P 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.