what is error 4000
when i tried to update the phone, an error 4000 appeared. what is it about?
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Keeping in mind that this workaround can affect keychain and/or Apple Pay (re-input data), try these steps to solve error 4000:
- Disconnect your device from the computer
- Temporarily disable the passcode on your iPhone
- Restart the iPhone
- Restart iTunes
- Reconnect the iPhone to your computer and restart the update procedure.
When finished, re-enable your passcode on your iPhone.
Regards
Giulio