

IPhone 13/13 Pro (Max)/13 mini, iPhone 12/12 Pro (Max)/12 mini, iPhone SE 2020, iPhone 11/11 Pro (Max), iPhone XS Max/XS/XR/X, iPhone 8/8 Plus, iPhone 7/7 Plus, iPhone 6s/ 6s Plus, iPhone SE, iPod touch 7

So if first make sure your device is in the following supported list.

Why does an error occurred when installing iOS 15? If your device is not used with 15, then you may get the "Cannot install update - Error installing iOS 15" message on iOS. Read More Solution 1: Check If Your Device Supports iOS 15
