You might need to disconnect and reconnect the other device as well if it has stopped responding. If the device doesn’t have a power cable and is plugged into another USB device that doesn’t have a power cable: Try plugging the device directly into your computer’s USB port or into a USB device that does have a power cable. Connect USB 3.0 SuperSpeed devices to a USB 3.0 SuperSpeed HUB, USB 2.0 Hi-Speed devices to a USB 2.0 Hi-Speed hub, and so on. Visit the manufacturer’s website for any updates.Ĭheck the USB hub: If the device is connected to a USB hub, make sure the device and the hub are the same speed. See Find how to service or repair your Mac.Ĭheck for missing software: Make sure you installed the latest software for your device.
If you still can’t use a device with the port, your computer may need to be serviced. Wait about a minute, then plug it back into the power outlet and start up your computer. If you can’t use this device, shut down the computer and unplug it from the power outlet. If you can use the device after switching ports, connect another device to the first port. If you still can’t use the device, contact the manufacturer for more information. If your computer has more than one USB port, switch the device’s cable to another port. Connect a wireless keyboard, mouse or trackpadĬheck the power, port and cable connections: Make sure the USB device is turned on and its cables are properly connected.Get started with accessibility features.Use Sign in with Apple for apps and websites.Manage cookies and other website data in Safari.View Apple subscriptions for your family.Subscribe to podcast shows and channels.Sync music, books and more between devices.Send files between devices with AirDrop.Make and receive phone calls on your Mac.Insert photos and documents from iPhone or iPad.Use Continuity to work across Apple devices.Use Live Text to interact with text in a photo.Make it easier to see what’s on the screen.Change the picture for you or others in apps.Install and reinstall apps from the App Store.
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