S0203-2 – Sony VPCEG
S0203-2 is the Wistron main board used in the Sony VPCEG. ChambersDesignInc.com has indexed 13 files for this board — 5 BIOS files and 8 schematics.
The BIOS dumps are 4 MB images. The earliest file dates from September 2017 (Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive).
BIOS dumps 5
Schematics 8
Board facts
| Board number | S0203-2 |
|---|---|
| Designed by | Wistron |
| Also known as | 48.4MP01.021, 48.4MP06.021, MBX-250 |
| BIOS chip size | 4 MB |
| Flash chip | MX25L3206EM2 |
| Graphics | discrete GPU |
| First seen | 2017-09-04 |
| Source channels | Schematics & Boardviews Archive, Cyberlan Electronics, BIOS Archive |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use S0203-2
- Sony VPCEG
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 |
|---|---|---|
| .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
Is there a boardview for S0203-2?
No boardview has been indexed for S0203-2 yet; the schematic is available on this page.
Who designed the S0203-2 board?
S0203-2 is a Wistron board number used by Sony.
What BIOS chip size does S0203-2 use?
The BIOS images for S0203-2 are 4 MB. Flash chips named in the files: MX25L3206EM2.
Which laptops use the S0203-2 board?
Files in the catalog link S0203-2 to the Sony VPCEG.
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.