iOS DFU Mode: How to Enter and Exit on iPhone and iPad

Introduction

DFU mode (Device Firmware Update) is a special boot mode for iOS devices where the device does not load the operating system or bootloader, but instead enters a state ready for forced firmware flashing. This mode is particularly useful when standard recovery methods via Recovery Mode fail, such as when stuck on the Apple logo, iOS update errors, boot loops, or when the device is not recognized by iTunes/Finder. Using DFU mode allows you to forcibly install the latest version of iOS, resolving even the most complex software issues. In this guide, you will learn how to properly enter DFU mode on an iPhone and iPad and perform a restore.

Requirements / Preparation

Before you begin, ensure you have:

• A computer with Windows (with the latest version of iTunes installed) or a Mac with macOS Catalina (10.15) or newer (uses Finder).
• An original Apple USB cable or an MFi-certified cable. Cheap or damaged cables can cause errors.
• An iPhone, iPad, or iPod touch device that supports DFU mode (all models starting from iPhone 5s, iPad Air, iPad mini 2, and newer).
• Sufficient battery charge on the device (at least 50% is recommended).
• A data backup via iCloud or iTunes/Finder, if possible. Important: A DFU restore will erase all data on the device, including system files and settings.

Also recommended:

• Close all unnecessary programs on your computer.
• Disable screen lock and sleep mode on your computer to prevent the process from being interrupted.
• Use a USB port directly on the computer, not through a USB hub.

Step 1: Prepare Computer and Cable

1. On Windows: Ensure you have the latest version of iTunes installed. Open iTunes and select "Help" → "Check for Updates". If an update is available, install it.
2. On Mac: For macOS Catalina and newer, use Finder. For older versions, install the latest version of iTunes from the App Store.
3. Connect your iOS device to the computer using the USB cable. Wait for iTunes or Finder to recognize the device. If a message "Trust This Computer" appears, tap "Trust" on the device and enter the passcode if prompted.
4. If the device is not recognized, try a different USB port, a different cable, or restart the computer.

Step 2: Enter DFU Mode

Entering DFU mode depends on the device model. Follow the instructions for your specific model.

For iPhone 8, iPhone SE (2nd generation), and newer, iPads without a Home button (e.g., iPad Pro):

1. Connect the device to the computer (if not already connected).
2. Quickly press and release the volume up button.
3. Quickly press and release the volume down button.
4. Then, press and hold the side button (power button) until the screen goes black (approximately 5 seconds).
5. Immediately after the screen turns black, start pressing the volume down button.
6. Hold the volume down button for another 5 seconds, then release the side button, but continue holding the volume down button.
7. Hold the volume down button for 5 more seconds. If the screen remains black and iTunes/Finder detects the device in recovery mode, you have successfully entered DFU mode. Nothing is displayed on the device screen (black screen).

For iPhone 7 and iPhone 7 Plus:

1. Connect the device to the computer.
2. Simultaneously press and hold the power button and the volume down button.
3. Hold both buttons for 10 seconds.
4. Release the power button, but continue holding the volume down button.
5. Hold the volume down button for another 5 seconds. If the screen remains black and iTunes/Finder detects the device, DFU mode is activated.

For iPhone 6s, iPhone SE (1st generation), and older models with a Home button, as well as iPads with a Home button:

1. Connect the device to the computer.
2. Simultaneously press and hold the power button and the Home button.
3. Hold both buttons for 10 seconds.
4. Release the power button, but continue holding the Home button.
5. Hold the Home button for another 5 seconds. If the screen remains black and iTunes/Finder detects the device, DFU mode is activated.

Signs of successful entry: The device screen remains black (no Apple logo or iTunes cable is shown), and iTunes (Windows) or Finder (Mac) displays a message that a device in recovery mode has been detected, with an option to restore.

If you see the Apple logo or an iTunes cable, you have most likely entered Recovery Mode, not DFU. Try again, ensuring the correct sequence and timing.

Step 3: Restore in iTunes/Finder

After successfully entering DFU mode:

1. In iTunes (Windows) or Finder (Mac), you will see a window stating that a device in recovery mode has been detected. Click "Restore iPhone" (or "Restore iPad").
2. iTunes/Finder will automatically download the latest version of iOS compatible with your device and begin the restore process. This may take several minutes depending on your internet speed.
3. Do not disconnect the device from the computer and do not interrupt the process until it completes. The device screen may show the Apple logo and a progress indicator.
4. If iTunes/Finder prompts you to choose between Update or Restore, select "Restore". "Update" preserves data, but DFU mode typically requires a full restore.
5. During the restore, the device may reboot multiple times. Do not worry, this is normal.

Step 4: Set Up Device After Restore

1. After a successful restore, the device will reboot and show the welcome screen (like a new device).
2. Set up the device: select language, region, connect to Wi-Fi.
3. On the "Apps & Data" screen, you can:
   • Restore from Backup, if you made a backup previously (via iCloud or iTunes/Finder). Select the appropriate backup.
   • Set Up as New iPhone/iPad, if there is no backup or you want to start fresh.
4. Complete the setup, sign in with your Apple ID, and configure other settings.

Verify the Result

Ensure the device is functioning correctly:

• The device successfully boots to the home screen (or the welcome screen if set up as new).
• All basic functions work: calls, messages, Wi-Fi, camera, etc.
• If you restored from a backup, verify that data (contacts, photos, apps) has been restored.
• Confirm the iOS version is updated to the latest stable release.

If the device freezes again or shows errors, the issue may be hardware-related. In this case, contact Apple Support or an authorized service center.

Potential Issues

Issue 1: Cannot Enter DFU Mode

• Solution: Ensure you are following the correct sequence for your model. Timing is critical: hold the buttons for exactly the specified duration. Try a different USB cable or port. Restart the computer and try again. If the device's buttons are not working, DFU mode may not be accessible.

Issue 2: iTunes/Finder Does Not See Device After Entering DFU

• Solution: Check that you entered DFU correctly (screen should be black). Ensure iTunes/Finder is running and updated. Restart the computer and the device. Try a different computer if possible. On Windows, you may sometimes need to install the Apple Mobile Device Support drivers.

Issue 3: Errors During Restore (e.g., Error 4013, 4005, 11)

• Solution: These errors often relate to connection or firmware issues. Ensure a stable internet connection. Use an original cable and a direct USB port. Try restoring in DFU mode again. If the error persists, manually download the firmware via iTunes (learn how to do this). As a last resort, use a different computer.

Issue 4: Device Stuck in DFU Mode (Black Screen, Unresponsive)

• Solution: Perform a force restart:
  • On iPhone 8 and newer: quickly press and release the volume up button, then the volume down button, then press and hold the side button until the Apple logo appears.
  • On iPhone 7: press and hold the power button and volume down button until the Apple logo appears.
  • On iPhone 6s and older: press and hold the power button and Home button until the Apple logo appears. After restarting, the device should boot normally. If not, try DFU mode again.

Issue 5: Data Did Not Restore from Backup

• Solution: Ensure the backup is not corrupted and matches the device. In the future, regularly back up data via iCloud or computer. If the backup is outdated, some data may be lost.