MBX-243 – Sony V081
The MBX-243 (Sony) motherboard is found in the Sony V081. The catalog lists 2 files for it: 2 BIOS files and 1 EC firmware image.
Revisions seen in file names: 1.1. The earliest file dates from January 2017 (BIOS Archive).
BIOS dumps 2
Board facts
| Board number | MBX-243 |
|---|---|
| Numbering | Sony board number |
| Revisions | 1.1 |
| First seen | 2017-01-26 |
| Source channels | BIOS Archive |
| About the number | Sony VAIO main boards are named MBX-xxx; the same board also has an ODM (Quanta, Foxconn, Wistron, Compal) number. |
Laptops that use MBX-243
- Sony V081
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.
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 |
|---|---|---|
| .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 MBX-243 board?
Files in the catalog link MBX-243 to the Sony V081.
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.