4013

Quick Fix

1. Disconnect and reconnect the USB cable. 2. Update iTunes or macOS to the latest version. 3. Restart both iPhone and computer. 4. Try a different USB port or cable.

What it Means

Error 4013 signals a communication failure between the iPhone and the computer during backup or restore. It usually happens when the device cannot establish a stable connection, often due to hardware or software issues.

Possible Causes

• 1
  Faulty or non‑Apple USB cable
• 2
  Outdated iTunes or macOS
• 3
  iPhone not trusted or locked
• 4
  Corrupted backup files
• 5
  Hardware problems on the iPhone or computer

Step-by-Step Solutions

1. Check USB Cable and Port

   Ensure the cable is Apple‑certified and not damaged. Try a different port on the computer to rule out port issues.

2. Update iTunes and macOS

   Outdated software can cause compatibility problems. Update to the latest versions to get the newest drivers and fixes.

   softwareupdate --install --all
3. Restart Devices

   A simple reboot clears temporary glitches on both the iPhone and the computer, re‑establishing a fresh connection.

4. Reset Network Settings

   Resetting network settings removes corrupted Wi‑Fi and VPN data that might interfere with the backup process.

   Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings
5. Delete Corrupted Backup

   If the backup file is corrupted, delete it from iTunes or Finder and start a new backup.

6. Try a Different Computer

   Testing on another machine eliminates computer‑specific driver or configuration issues.

Commands You Can Try