How To Enter DFU Mode On iPhone | Black-Screen Restore

To enter DFU mode on any iPhone, connect it to a computer, then follow the model‑specific button sequence—the screen stays black throughout.

How to enter DFU mode on iPhone depends on which model you have, but the core requirement stays the same: a computer and a black screen. DFU (Device Firmware Update) mode is the deepest restore state possible, used when normal recovery or restart methods won’t fix corrupted firmware. The phone’s screen remains dark—if you see the Apple logo or a cable graphic, you’re in recovery mode, not DFU.

You’ll need a Mac with Finder (or iTunes on older macOS) or a Windows PC with iTunes or the Apple Devices app. Have your computer ready and the USB‑C or Lightning cable connected before you start the button sequence.

What Is DFU Mode?

DFU mode loads only the bare‑minimum boot ROM, allowing your computer to replace the entire iOS firmware. Unlike recovery mode, which preserves some system files, a DFU restore rewrites everything. It’s the last resort for a phone that won’t boot, is stuck in a loop, or needs a fresh iOS install after failed updates.

The iPhone’s display stays completely black the whole time the device is in DFU mode. If you see anything on the screen, you’re not in DFU—start over.

When to Use DFU Mode Instead of Recovery Mode

Recovery mode works for most restore situations, but DFU mode is needed when recovery mode fails, the phone can’t enter recovery at all, or you’re dealing with deep firmware corruption. Think of recovery as a simple reinstall and DFU as a clean‑slate firmware rewrite.

Entering DFU Mode on iPhone 8 and Later: The Exact Sequence

For any iPhone with Face ID or a Home button that lacks a physical Home button (iPhone 8 through 16, and SE 2nd/3rd gen), the steps are identical. Follow them in order—each timing counts.

1. Connect your iPhone to your computer with the cable. Open Finder (macOS 10.15+) or iTunes/Apple Devices (Windows).
2. Press and quickly release Volume Up.
3. Press and quickly release Volume Down.
4. Hold the Side button until the screen goes completely black. This takes about 10 seconds. Do not release when you feel a vibration or see anything—keep holding until black.
5. As soon as the screen is black, hold both the Side button and Volume Down together for exactly 5 seconds.
6. Release the Side button but continue holding Volume Down until your computer shows a “DFU mode” or “Recovery mode” prompt—usually within another 5–8 seconds.

If you see the Apple logo during step 4, you held the Side button too long. Let the phone restart and try again. If the computer never detects the device, restart the entire sequence from step 1.

DFU Mode for iPhone 7 / 7 Plus and iPhone 6s and Earlier

Older iPhones use different button combinations, but the principle is the same: a timed hold with a release. iFixit’s detailed DFU guide provides extra timing visuals if you’d like a walk‑through.

iPhone 7 / 7 Plus

1. Connect the device to the computer.
2. Hold the Side button and Volume Down together for 8 seconds.
3. Release the Side button while still holding Volume Down.
4. Keep holding Volume Down until the computer detects the device in DFU mode.

iPhone 6s and earlier (including original iPhone SE)

1. Connect the device to the computer.
2. Hold the Home button and Sleep/Wake button together for 8 seconds.
3. Release the Sleep/Wake button while still holding Home.
4. Keep holding Home until the computer detects the device.

After detection, you can restore the iPhone using Finder or iTunes. The screen will stay black until you exit DFU mode or complete the restore.

Common Mistakes That Prevent DFU Mode

• Releasing buttons too early. The screen must go black before you begin the hold‑together phase. On iPhone 8 and later, that first black screen comes from holding the Side button alone—don’t rush to add Volume Down.
• Holding the Side button too long during the initial black‑screen step. If you see the Apple logo, the phone tried to boot normally. Release everything and start over.
• Not having the computer ready. The phone sends a signal only after the computer’s software is open and waiting. Open Finder or iTunes before you start the button sequence.
• Confusing DFU with recovery mode. In recovery mode the screen shows a cable and computer icon. DFU shows nothing. If you see an image on the display, you’re in recovery.
• Using the wrong sequence for the model. Double‑check the table above. The iPhone 7 is not the same as the iPhone 8.

DFU Mode vs Recovery Mode

Knowing the difference helps you choose the right tool. The table below compares the two restore states.

How Do You Exit DFU Mode?

You can always leave DFU mode without restoring. For iPhone 8 and later, quickly press Volume Up, then Volume Down, then hold the Side button until the Apple logo appears. For iPhone 7 / 7 Plus, hold Side + Volume Down until the device reboots. For iPhone 6s and earlier, hold Home + Sleep/Wake until the Apple logo appears. The phone will restart normally and DFU mode is gone.

DFU Mode Checklist: One‑Minute Summary

1. Back up your iPhone – DFU restore wipes everything.
2. Connect to a computer with Finder, iTunes, or Apple Devices open.
3. Identify your model – use the table above for the correct button sequence.
4. Perform the timed button sequence – the screen must stay black.
5. Verify detection – the computer will show a DFU‑mode message.
6. Restore using the “Restore iPhone” option, or exit DFU mode with a force restart if you changed your mind.