Apple Error 4013: What It Means and What to Try

What Error 4013 represents

Error 4013 appears in Finder or iTunes when a restore or update operation is interrupted or cannot be completed. Apple's own documentation groups it with errors that typically indicate a hardware issue with the device, but in practice the problem frequently traces back to the USB connection rather than the phone itself.

Connection checks to make first

1. 1

   Try a different cable

   Use the official Apple USB or USB-C cable that came with the device, or a known-good alternative. Third-party cables and cables that have been bent or damaged can interrupt the high-bandwidth data transfer that a restore requires.

2. 2

   Try a different USB port on the computer

   Connect directly to a port on the computer itself, not through a hub or dock. Some hubs do not supply adequate power or data bandwidth for a restore.

3. 3

   Restart both the device and the computer

   A fresh start on both sides clears driver states and transient connection problems.

4. 4

   Trust the computer

   When you connect the device, it may show a 'Trust This Computer' prompt. Confirm this on the device before starting the restore.

Software checks

Ensure Finder or iTunes is fully up to date. On Windows, also ensure you have the latest Apple Mobile Device USB Driver installed — it can be updated through iTunes or Device Manager.

Disable or temporarily pause any security software that may be scanning USB connections or intercepting the restore process.

Hard reset the device and retry

If the error persists after connection and software checks, perform a hard reset on the device to put it into a clean state before retrying the restore. The exact button sequence for a hard reset varies by iPhone model — check Apple's current documentation for the specific steps for your device generation.

If the device is in recovery or DFU mode already, attempt to enter DFU mode deliberately using the correct sequence for your model, which can sometimes produce a more stable restore connection than standard recovery mode.

When Error 4013 may indicate a hardware problem

Apple's documentation notes that Error 4013 can indicate a hardware fault on the device. If you have tried multiple cables, multiple USB ports, a different computer, updated software, and the error consistently appears at the same point in the restore process, the device hardware may need professional assessment.

Contact Apple Support or visit an Apple Authorised Service Provider. If the device is under warranty or AppleCare, a hardware fault may be covered.