iPhone 4 cannot connect to iCloud or Apple ID
My old Iphone 4 wont connect to my icloud/ apple id plz help
Earlier iPhone models
Question marked as
The iPhone 4 does not meet the minimum system requirements for iCloud, you will need at least an iPhone 5s.
However, even the iPhone 5s will probably not support all installed apps anymore.
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iCloud is supported on the following OS versions or later: iOS 11 on iPhone 5s, iPad (5th generation), iPad Pro, or iPad mini 2; watchOS 4 on an Apple Watch; macOS High Sierra 10.13 on a Mac; tvOS 11 on an Apple TV (4th generation); or visionOS 1 on an Apple Vision Pro.
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copied from: System requirements for iCloud - Apple Support