See the Apple Support article Identify the ports on your Mac.Ĭheck for missing software: Make sure you installed any software that came with the device. A Thunderbolt cable has a Thunderbolt icon on the connector.Ĭheck that you’re using the right port: Make sure you connect the Thunderbolt cable to a Thunderbolt port, not a USB-C port. If the device is in a chain of devices, remove the device from the chain, then plug it directly into your computer and verify that it works.Ĭheck that you’re using the right cable: Make sure you connect the Thunderbolt device with a Thunderbolt cable, not a Mini DisplayPort cable. If the device requires a power cord, make sure it’s plugged in. Get started with accessibility featuresĬheck the device: Make sure the device is turned on and its cables are connected.Use Sign in with Apple for apps and websites.Watch and listen together with SharePlay.Share and collaborate on files and folders.Sync music, books, and more between devices.Make and receive phone calls on your Mac.Use one keyboard and mouse to control Mac and iPad.Use Live Text to interact with text in a photo.Make it easier to see what’s on the screen.Install and reinstall apps from the App Store.

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