Setting your iPhone in DFU (Device Firmware Upgrade) mode is a useful troubleshooting step when your device is experiencing issues like a bricked screen or unresponsive software. Follow these steps carefully to enter DFU mode on your iPhone:
1. Connect your iPhone to a computer using a USB cable and open iTunes or Finder on macOS Catalina or later.
2. With your iPhone connected, press and release the Volume Up button quickly, then repeat the same step with the Volume Down button.
3. Press and hold the Side (or Power) button until the screen goes black. This action should take about ten seconds.
4. Once the screen is black, while still holding the Side button, press and hold the Volume Down button for an additional 5 seconds.
5. After 5 seconds, release the Side button but continue holding the Volume Down button for another 10 seconds.
6. Look at the screen – if it remains black, your iPhone has successfully entered DFU mode. iTunes or Finder should display a message indicating that it has detected a device in recovery mode.
7. You can now restore or update your iPhone using iTunes or Finder while it’s in DFU mode. Follow the on-screen instructions to complete the process.
8. If you see the Apple logo on your screen or the “Plug into iTunes” message, it means you did not enter DFU mode successfully. Repeat the steps from the beginning.
9. Remember that entering DFU mode can be tricky at first, so don’t get discouraged if it takes a few tries to get it right.
10. When you finish using DFU mode, you can exit it by restarting your iPhone normally. Simply press and hold the Side button until the Apple logo appears.
11. It’s important to note that entering DFU mode will erase all data on your iPhone, so make sure to back up your device before attempting this process.
12. Use DFU mode with caution and only when necessary, as it is a powerful tool that can help resolve software issues on your iPhone when other methods fail.
