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Level 1

4 points

Not able to update iphone

The iPhone could not be updated. An unknown error occurred (4000).

iPhone SE, iOS 11

Posted on Jun 19, 2022 10:20 PM

Top-ranking reply

Level 10

209,061 points

Posted on Jun 20, 2022 1:46 AM

Troubleshooting:

Turn your iPhone on and unlock it -> enter the passcode.

Go to Settings -> set Auto-Lock to Never.

Connect your device to your computer using an Apple USB cable & try also another USB cable.

(Windows OS) -> Make sure your Windows PC is up to date & iTunes too.

Check the Wi-Fi connection.

Turn Off Hotspot.

Turn Off or remove VPN if necessary.

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