What is DFU Mode? How To Enter DFU Mode On An iOS Device
Many of you asked what is the DFU mode and more exactly how you can get your iPhone in the DFU mode as many jailbreak solutions require this step in order to complete successfully as well as all manual software updates. With the aid of this article we hope to tech you a thing or two about what DFU mode is and how to enter it. We’ll start with some DFU mode frequently asked questions and we’ll continue with the actual step by step guide.
What is DFU mode?
The DFU mode is a condition in which you can make your device get into in order to communicate with Apple iTunes without loading the device’s iOs nor the boot loader, hence the essential difference between the DFU mode and the device recovery mode. In fact DFU mode actually means Device Firmware Update (things now start to get sense huh?)
For What can I use the DFU mode?
Many folks use this option to update their devices to a newer firmware version, achieve a jailbreak solution or downgrade their firmware to a previous version in order to unlock their iPhone using a modified firmwire version of iOS. For example if you run a newer software version (that does not support an unlock yet) and you have your SHSH blobs saved you can downgrade to an earlier firmware version which can be unlocked using Snowbreeze. To do this you must enter your iPhone into DFU mode.
Hoping that now you know what DFU mode is and what is it used for let’s move forward and learn how to enter it from your iPhone.
How To Enter DFU mode
Step 1. Fire up your computer and connect your device to Apple Itunes.
Step 2. Hold down the lock button on your device until it’s off. You can not enter DFU mode unless your iOS device is OFF.
Step 3. Next you must press and hold the lock button as well as the home button at the same time for about ten seconds, then only release the lock button. Make sure you are still holding the home button pressed.
Step 4. Do not stop and continue holding the Home button until Apple Itunes prompts you with a message informing you that it has detected a device (iPhone, iPad, iPod) in recovery mode.
Step 5. You are now in DFU mode ( your screen turns to black as if the device is turned off). Do not worry, if your don’t see anything but black on your device lock screen it does not mean the device is not actually communicating with Apple iTunes or a custom iOS. Please keep in mind that any icon that is present on your lock screen indicates that you are not in DFU mode but actually in standard recovery mode, so you must try again until you get it right. Practice makes perfect!
How to Quit DFU mode
The easiest way to quit DFU mode is to press at the same time the two buttons described above (the lock button and the home button) for 20 to 40 seconds while not being connected to Apple iTunes.
This is it! You now know how to put your Iphone, iPad or iPod into DFU mode. Either you want to jailbreak your device and get access to tons of apps or you just need to enter DFU mode to downgrade your firmware you are now all set to go!
That wasn’t so hard, was it? Please leave a comment if you encounter any problems!
