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Hondo Phil Author

Level 1

10 points

error 4000

unknown error (4000) when trying to update to newest software v ios14. did everything recommended by Apple, no help??? ios 14.0 upgrade error 4000

iPhone 8 Plus, iOS 13

Posted on Sep 20, 2020 8:43 AM

Top-ranking reply

Carl_Franz

Level 3

556 points

Posted on Sep 20, 2020 3:48 PM

Turn off the passcode and update while device is unlocked https://forums.macrumors.com/threads/trying-to-update-to-ipad-os-14-itunes-giving-error-4000.2255178/

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error 4000

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