Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

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

Reply
Question marked as Best reply

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/

1 reply

error 4000

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.