If you are an iPhone user, you may be aware of DFU (Device Firmware Update) Mode. Once enabled, it lets you put your iOS device into a state where it is able to communicate with iTunes-even without activating the boot loader or iOS. Most importantly, it allows your iPhone/iPad to get restored from any state.
You will need to put your iPhone into DFU Mode while Jailbreaking, unjailbreaking, updating from an outdated beta or troubleshooting any issue. If you are planning to buy the new iPhone, you will need to know how it works. Let's check out!
How to Enter DFU Mode on iPhone 7/7 Plus
Make sure you have the latest version of iTunes installed on your device.
Step #1. First off, you need to plug in your iPhone 7 to your computer.
Step #2. Next up, you have to turn off your iPhone.
Step #3. Press and hold down the On/Off button on the right side of your iPhone for 3 seconds.
Step #4. Now, you need to press and hold down the volume down button on the left side of your iPhone while still holding down the On/Off button.
Step #5. Make sure to keep holding both buttons for 10 seconds.
Note: If Apple logo appears on the screen, you will have to start it again. Therefore, make sure not to held them for too long.
Step #6. Now, you need to release the On/Off Button but keep holding the volume down button for about 5 seconds.
Note: If the “Plug into iTunes” screen appears on the screen, then you will need to start it again. Hence, make sure not to held it for too long.
Step #7. Your iPhone will now be in DFU mode. You will get an alert from iTunes saying it has detected your iPhone and allow it to be restored.