How to Enter and Exit DFU Mode on iPhone Air (Windows & Mac)

Preparing for DFU Mode

• 💡 DFU mode is essential for restoring or updating iPhone firmware when standard resets fail.
• ⚠️ On Windows, you'll need to install the 'Apple Devices' app from the Microsoft Store, which replaces iTunes.
• 💻 On Mac, no extra software is needed; simply use Finder to connect your iPhone.

Entering DFU Mode

• 📌 The process requires a specific, time-sensitive button sequence to boot the device into DFU mode.
• 🚀 Step 1: Press and release Volume Up, then Volume Down.
• ⚡ Step 2: Immediately press and hold the Power button for 10 seconds.
• ⏱️ Step 3: After 10 seconds, release the Power button and immediately press and hold Volume Down for exactly 5 seconds.
• 🎯 Confirmation: Successful entry into DFU mode is indicated by the device appearing in the Apple Devices app (Windows) or Finder (Mac), as there's no visual cue on the iPhone screen itself.

Using and Exiting DFU Mode

• 🛠️ Once in DFU mode, you can choose to restore or update your iPhone Air via the connected computer.
• ⚠️ Be aware that 'restore' in this context typically means erasing all data.
• 📤 To exit DFU mode without performing a restore, press and hold Volume Up and the Power button until the device screen reappears, then release the buttons.
• ✅ The device will then boot up normally, and you can unplug the cable.