iPhone error 4000

What is iPhone error 4000?

iPhone error 4000 is an error that usually occurs if there’s an issue with the USB cable and iTunes can’t connect to the device.

 

How can you fix iPhone error 4000?

Some of the solutions to this error include configuring the operating system and updating iTunes, and troubleshooting the connection.

 

Please see our in-depth walk-through solutions below.

Staff Asked on August 17, 2017 in iOS.
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2 Solution(s)

Solution 1. Configure Operating System and update iTunes

iPhone error 4000 may occur when your iTunes is out of date or if your iTunes could not synchronize with your iPhone or with the Apple server. There many factors that could desync your iTunes to your device and to the Apple server. It could be the time and date setting, using a guest account, un-updated Windows or Mac,  third-party software and malicious software. Please see below how to properly sync your device to iTunes. 

  1. Log-in to an administrative user account.
    For Windows, please see link here.
    For OS X, please see link here.
  2. Make sure the date, time, and time zone are correct.
    For Windows, please see here.
    For OS X here.
  3. Make sure your Windows or OS X is updated.
    For Windows, please see here.
    For OS X, please see here.
  4. Ensure your iTunes is updated. Please see link here.

    RE: iPhone error 4000

  5. If you think your operating system is infected by malicious software, update, and scan using an anti-virus.
  6. After scanning your computer, disable your anti-virus and other software that could interfere the process such as VPN and firewall.
  7. Remove iPhone passcode before updating or make sure you could enter the passcode when it is required.
Staff Answered on August 21, 2017.
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Solution 2. Troubleshoot connection

iPhone error 4000 may also occur if there is a problem with your USB cable or the USB port. Please see to test it.

  1. Use another USB cable.
  2. Try a different dock connector (or no dock).
  3. Close all software that can interrupt the USB connect, such virtualization apps.
  4. Do not use USB extension or computer case USB ports.
  5. Use USB port directly connected to the motherboard.
Staff Answered on August 21, 2017.
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