A Full Guide: Fix iPhone Could Not Be Updated Error 4000


Apple keeps releasing updates with new features and bug fixes to users. But according to users, error 4000 often happens when updating to any iOS 14 version using iTunes. The pop-up says “The iPhone ‘xx’ could not be updated. An unknown error occurred (4000).”

iPhone update error 4000, also called iTunes error 4000, is a very basic error. The main reasons for it include:

The iTunes version is outdated or older.
The system or iTunes registries are corrupted.
The iPhone has been updated with the latest iOS that is available to iTunes. That is, the current iOS on the iPhone may be newer than the one on iTunes.
Your iPhone is locked and it needs to be unlocked for an update.
iTunes installation is incomplete.
Fortunately, you can easily remove iPhone error 4000 by trying these solutions.

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Created by Vera 18 weeks 22 hours ago – Made popular 18 weeks 11 hours ago
Category: Software   Tags: