Silicon Labs a leading provider of microcontroller, sensing and wireless connectivity solutions for the Internet of Things (IoT).
To check which version of Simplicity Studio you have installed, go to the install location of Simplicity Studio on your hard drive. In order to get the new kit firmware to enable mbed on your old kits, it is required that you use Simplicity Studio v3 or higher.
The default location is
If you only have a v2 folder in there, please download the latest installer from the Silicon Labs website to install v3.