14285-1 – Acer Aspire ES1-531
The Acer Aspire ES1-531, Acer 531, Acer Aspire ES1 and Acer Extensa 2519 are built on the 14285-1 board designed by Wistron. The catalog lists 14 files for it: 9 BIOS files, 3 schematics and 2 boardviews.
The BIOS dumps are 8 MB images. The earliest file dates from September 2017 (Cyberlan Electronics, BIOS Archive and Schematics & Boardviews Archive).
BIOS dumps 9
Schematics 3
Boardviews 2
Board facts
| Board number | 14285-1 |
|---|---|
| Designed by | Wistron |
| Platform group | 14XXX |
| Also known as | 448.05303.0011, 448.05303.1100 |
| BIOS chip size | 8 MB |
| First seen | 2017-09-05 |
| Source channels | Cyberlan Electronics, BIOS Archive, Schematics & Boardviews Archive |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use 14285-1
- Acer Aspire ES1-531
- Acer 531
- Acer Aspire ES1
- Acer Extensa 2519
- Acer Extensa EX2519
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.
A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .brd | .brd boardview (Test_Link format) | OpenBoardView, FlexBV or BoardViewer |
| 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
What BIOS chip size does 14285-1 use?
The BIOS images for 14285-1 are 8 MB.
Who designed the 14285-1 board?
14285-1 is a Wistron board number used by Acer.
Which laptops use the 14285-1 board?
Files in the catalog link 14285-1 to the Acer Aspire ES1-531, Acer 531, Acer Aspire ES1, Acer Extensa 2519 and Acer Extensa EX2519.
Is there a boardview for 14285-1?
Yes, 2 boardview files in .brd format.
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.