MBX-235 – Sony F13
The Sony F13 is built on the MBX-235 board designed by Foxconn. The catalog lists 7 files for it: 7 BIOS files and 1 EC firmware image.
The BIOS dumps are 4 MB images. First posted in January 2017 in BIOS Archive.
BIOS dumps 7
Board facts
| Board number | MBX-235 |
|---|---|
| Designed by | Foxconn |
| BIOS chip size | 4 MB |
| GPU | N11P-GS-A1, N11P-GS-A1-I7 |
| Graphics | discrete GPU |
| 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-235
- Sony F13
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 |
|---|---|---|
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
Questions
Who designed the MBX-235 board?
MBX-235 is a Foxconn board number used by Sony.
What BIOS chip size does MBX-235 use?
The BIOS images for MBX-235 are 4 MB.
Which laptops use the MBX-235 board?
Files in the catalog link MBX-235 to the Sony F13.
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.