iPhone 17: Step-by-Step Guide to Entering and Exiting DFU Mode

Preparing for DFU Mode

• 💻 For Mac users, simply open Finder and connect your iPhone 17; it will appear in the side panel.
• 🍎 Windows users need to download the Apple Devices app from the Microsoft Store, which replaces iTunes for managing iOS devices.
• 🔌 Ensure your iPhone 17 is connected to your computer via a cable.

The DFU Mode Button Sequence

• 👆 First, press and quickly release the Volume Up button.
• 👇 Next, press and quickly release the Volume Down button.
• 💡 Then, hold the Power button for approximately 10 seconds.
• ⬇️ After 10 seconds, hold both the Volume Down and Power buttons simultaneously for about 5 seconds.
• 🔌 Finally, release only the Power button while continuing to hold the Volume Down button.

Entering and Verifying DFU Mode

• 🎯 If successful, your computer will detect the iPhone 17 in DFU mode, distinct from recovery mode.
• ⚙️ On Windows, the Apple Devices app will show options to Update or Restore your iPhone.
• ⚠️ Be aware that 'Restore iPhone' performs a factory reset, which can erase all data.

Exiting DFU Mode

• ↩️ To exit DFU mode without performing an action, press Volume Up, then Volume Down.
• 🔋 Immediately after, hold the Power button until the computer connection is lost and the iPhone begins to restart.
• ✅ Once the iPhone turns on, you can unplug the cable.