When encountering problems with the installation of the Mac OSX VCP driver, perform the following steps and record the results:
1. Make sure the driver is in the file system at /Library/Extensions/SiLabsUSBDriver.kext 2. Type the following command: kextstat | grep silabs (If there is no output from this, driver is not installed.) 3. Type the following command: sudo kextload /Library/Extensions/SiLabsUSBDriver.kext 4. Check again to see if the driver is loaded: kextstat | grep silabs. 5. If the driver is still not loaded, type: sudo kextutil /Library/Extensions/SiLabsUSBDriver.kext and record the error.
If none of these steps resolve the issue, report the results of following these steps to Technical Support here: www.silabs.com/support.