iTunes Windows v12.10.9.3 error 4000 for iOS 14

Trying to update to iOS 14 with this version but both my iPad Air 3rd gen & my iPhone 11 Pro keep throwing error 4000 after extracting the file. My searching says that I need the "latest version of iTunes" but I have the latest version.


Anyone running into this?

Windows, Windows 10

Posted on Sep 16, 2020 3:26 PM

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Posted on Sep 17, 2020 6:13 AM

So after many attempts I found something that worked.


I temporarily disabled / removed my passcode to unlock my device, and disabled auto lock. I had to put in my Apple ID password to do so. I didn’t have to disable face id.


hopefully this works for others. Good luck!


after the update it prompted me to create a passcode.

34 replies

Sep 17, 2020 11:29 AM in response to Tario70

I can confirm 2 workarounds that worked for me.


iPad Air (3rd Gen) - Passcode Turned off - Update went through fine but if you have any credit cards in your wallet they will be removed. You can add them back with the CVV code after the update.


iPhone 11 Pro - Put iPhone in Recovery Mode - Update went through but then I had a "attempting data recovery" screen after update. This screen takes a long time to get through & I mean a long time (easily 30-45 minutes), but it does recover & you will not need to re-input anything

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iTunes Windows v12.10.9.3 error 4000 for iOS 14

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