Sidecar is a new feature introduced in macOS Catalina where you can use your iPad as a display that extends or mirrors your Mac desktop.
If you are having issues getting Sidecar to work in macOS Big Sur, these are the things to check:
- Both devices must be compatible to use Sidecar
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Check the list below if your devices are compatible to use Sidecar:
macOS
- MacBook Pro introduced in 2016 or later
- MacBook introduced in 2016 or later
- MacBook Air introduced in 2018 or later
- iMac introduced in 2017 or later, plus iMac (Retina 5K, 27-inch, Late 2015)
- iMac Pro
- Mac mini introduced in 2018 or later
- Mac Pro introduced in 2019
iPadOS
- iPad Pro: all models
- iPad (6th generation) or later
- iPad mini (5th generation)
- iPad Air (3rd generation)
- Both devices must be signed in to iCloud
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Ensure all of the devices that will use Sidecar are all signed in to the iCloud with the same Apple ID using two-factor authentication.
- Both devices must be within 10 meters (30 feet)
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To use Sidecar wirelessly, both devices must be within 10 meters (30 feet) of each other and have Bluetooth, Wi-Fi, and Handoff turned on. Also, make sure that the iPad is not sharing its cellular connection and the Mac is not sharing its Internet connection.
- Your iPad must be set to trust your Mac
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To use Sidecar over USB, make sure that your iPad is set to trust your Mac.
