Prepare for the update
- This update requires OS X El Capitan v10.11.4. Use the Mac App Store or Software Update to get the most recent version of OS X.
- Plug your USB-C Multiport Adapter into the USB-C port on your Mac. Make sure that your USB-C Charge Cable is connected to your adapter and plugged into a power source using your USB-C Power Adapter.
- Disconnect all external devices (such as displays, thumb drives, and hard drives) and hard-wired network connections from your USB-C Multiport Adapter.
Install the update
- After you plug in your adapter, the updater shows two choices via an alert in the upper-right corner of your display: Install and Not Now. Click Install.
- Follow the on-screen instructions to install the update.
- When the installation is complete, click the Restart button that appears.
Your MacBook restarts and the Apple logo and progress bar appear. Your Mac then updates the USB-C Multiport Adapter. It takes several minutes for the update to complete.
When the update completes successfully, your Mac restarts into OS X.
Important: Don't turn off your computer or disconnect your adapter during this update.
Verify the update
After your MacBook restarts, you can verify that the USB-C Multiport Adapter update was successful:
- Click on the Apple menu and choose About This Mac.
- Click System Report. The System Information window appears.
- Under Hardware on the left side of the window, select USB.
- Under USB Device Tree, click on the name of your USB-C Multiport Adapter.
- The details of your adapter appear in the bottom-right field. If the number across from Version is 2.33, the update was successful.