Here is complete guide how to enable / disable DFU mode on iPhone 15, iPhone 15 Pro, iPhone 14, iPhone 14 Pro iPhone 13 and other iPhone Models.

Device Firmware Update (DFU) mode is a vital tool for iPhone users, offering a way to manage the firmware of their devices (for example : iOS downgrade). Whether you’re looking to upgrade, downgrade, or troubleshoot your iPhone, knowing how to navigate DFU mode is essential. This comprehensive guide provides step-by-step instructions for enabling or disabling DFU mode across all iPhone models, ensuring you can handle your device’s firmware effectively.

What is DFU Mode?

DFU mode allows your iPhone to interface with iTunes or Finder (on macOS Catalina and later) without loading the operating system or boot loader. This is particularly useful for installing older versions of iOS, unbricking a device, or customizing your firmware.

Preparing Your iPhone for DFU Mode

Before you start, ensure your iPhone is backed up to avoid any data loss. Use iTunes or Finder for the backup. Also, make sure you have the latest version of iTunes installed if you’re using a PC or macOS Mojave and earlier.

For iPhone 15, iPhone 14, iPhone X and Later Models

Entering DFU Mode:

1. Quick Press Volume Up: Briefly press and release the volume up button.
2. Quick Press Volume Down: Quickly press and release the volume down button.
3. Hold the Side Button: Press and hold the side button until the screen turns black, then hold both the side button and volume down button for 5 seconds.
4. Release Side Button: Release the side button while continuing to hold the volume down button for another 5 seconds. If the screen stays black, your iPhone is in DFU mode.

Exiting DFU Mode:

• To exit, quickly press the volume up button, then the volume down button, and finally hold the side button until the Apple logo appears.

For iPhone 7 and iPhone 7 Plus

Entering DFU Mode:

1. Side and Volume Down: Hold both the side and volume down buttons together for about 10 seconds.
2. Release Side Button: Let go of the side button while continuing to hold the volume down button for another 5 seconds. A black screen indicates you’ve successfully entered DFU mode.

Exiting DFU Mode:

• Hold down the side and volume down buttons together until the Apple logo appears.

For iPhone 6s and Earlier

Entering DFU Mode:

1. Home and Top (or Side) Buttons: Press and hold both buttons simultaneously for 8 seconds.
2. Release Top (or Side) Button: Continue holding the home button until your device goes into DFU mode, indicated by a blank screen.

Exiting DFU Mode:

• Press and hold both the home and the top (or side) buttons until the Apple logo shows up.

Apple Tips:

DFU mode is a powerful tool for managing your iPhone’s firmware. Whether you’re troubleshooting, downgrading iOS, or preparing your device for a sale, following these steps carefully will ensure you can enter and exit DFU mode as needed. Remember, always back up your iPhone before performing any firmware operations to safeguard your data.