Error 4013: Device Disconnected During Restore

Understanding Error 4013

Error 4013 is one of the most common iOS restore errors. It indicates that your device lost communication with iTunes or Finder during the update or restore process. While it can signal a hardware issue, in most cases it’s caused by a faulty USB connection or software interference.

Step-by-Step Troubleshooting

1. Force Restart Your Device

A force restart clears temporary glitches without erasing data:

• iPhone 8 or later: Press and quickly release Volume Up, then Volume Down, then press and hold the Side button until the Apple logo appears
• iPhone 7 series: Press and hold Volume Down + Side button together for at least 10 seconds
• iPhone 6s or earlier: Press and hold Home + Top (or Side) button together for at least 10 seconds

2. Check Your USB Connection

The most common cause of Error 4013 is a poor USB connection:

• Use the original Apple USB cable that came with your device
• Try a different USB port directly on your computer — avoid USB hubs
• Disconnect all other USB devices to eliminate interference
• Inspect the cable and connector for visible damage

3. Update Your Computer Software

Outdated software on your computer can cause communication errors:

• macOS: Go to System Settings > Software Update
• Windows: Update iTunes or the Apple Devices app to the latest version

4. Try Recovery Mode

If the error persists, put your device into recovery mode and attempt the restore again:

1. Connect your device to the computer
2. Open iTunes or Finder
3. Enter recovery mode using the button combination for your model
4. When prompted, choose Update first (this preserves your data)
5. If Update fails, choose Restore (this erases data)

5. Try DFU Mode

If recovery mode doesn’t work, try DFU (Device Firmware Update) mode for a deeper restore. DFU mode bypasses the iOS bootloader, allowing a complete firmware restore.

6. Try a Different Computer

If none of the above works, try restoring on a different computer. This helps determine if the issue is with your computer’s software or the device itself.

When It’s a Hardware Issue

If Error 4013 persists across multiple computers and cables, it may indicate a hardware problem such as:

• Damaged logic board
• Faulty flash storage (NAND chip)
• Water damage or physical trauma

In this case, contact Apple Support or visit an Apple Authorized Service Provider. Attempting hardware repairs yourself may cause further damage and void any remaining warranty.