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After upgrading to the Apple operating system macOS 10.15 Catalina, you can use the iPad as a second screen on some Mac, iMac and MacBook models. But not every iPad is compatible with the feature called sidecar. In this little guide I have listed for you which Macs and iPads can be used with the new sidecar function. I will also show you below how - at your own risk - you can also activate older Mac models under Catalina for the coupling feature.
Apple informs in its support document HT210380 in detail about the use of the new function with which the tablet becomes a second screen for the computer. Among other things, it also contains the system requirements for Sidecar. Both devices must be registered with the same Apple ID, WLAN and Bluetooth must be activated, the devices must not share their cellular or Internet connection and they must not be more than 10 meters away from each other (Bluetooth range) . In addition, the following models must be used for official compatibility:
|Mac with macOS Catalina||iPad with iPadOS 13|
As in the Problems and solutions collective contribution shown for macOS 10.15 Catalina, you can activate Sidecar via terminal code on older, actually unsupported computers. At the risk of it not working or the function being bugged to work, simply enter the following code in the terminal and confirm it with the Enter or Enter key:
defaults write com.apple.sidecar.display allowAllDevices -bool YES
But the command may no longer work at all. I've read in some sources that Apple disabled it so that no one could just bypass the restrictions mentioned above. But if you dare, you can still use the following solutions.
Of course, the model restrictions are not there without reason. Good image quality is only achieved with the devices mentioned above and their coupling via Apple Sidecar. With older devices, the quality of the display should obviously not be of very high quality, which is probably due to the lack of H.265 codec. If you don't mind or just want to try the third-party solutions SidecarPatcher and SidecarCorePatcher (at your own risk), you will find the links here:
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Jens has been running the blog since 2012. He appears as Sir Apfelot for his readers and helps them with problems of a technical nature. In his free time he drives electric unicycles, takes photos (preferably with his iPhone, of course), climbs around in the Hessian mountains or hikes with the family. His articles deal with Apple products, news from the world of drones or solutions for current bugs.