ResourceRecover iPhone Data > Enter DFU Mode with iDevice

How to Enter DFU Mode with Your iOS Device

Many of you asked what is the DFU mode and more exactly how you can get your iOS device in the DFU mode as many jailbreak solutions require this step in order to complete successfully as well as all manual software updates.
iPhone Data Recovery allows you to directly scan your iPhone 4 (GSM & CDMA), iPhone 3GS, iPad 1 and iPod touch 4 to recover lost data like contacts, photos, videos, messages, notes, etc. If you’ve ever used it or you’re using it now, you must know it that you need to enter the DFU mode first before you perform the scan and recovery. Actually, there're two ways for you to access the DFU mode with your iOS device. You can do it according to the guide displaying on the window of iPhone Data Recovery, after connecting your device. Or you can do it by yourself with your device and leave alone the program.

Enter the DFU mode with iPhone Data Recovery running

After running iPhone Data Recovery and connecting your device, you’ll get the window as follow (taking iPhone 4 as an example).
enter dfu mode

Now follow the steps in the window to begin entering the DFU mode.
Step 1: Hold your device, then click the green “Start” button;
Step 2: After clicking the “Start” button, press the “Power” and the “Home” at the same time immediately for exact 10 seconds. The program will count the time for you.
Step 3: When the 10 seconds passed, release the “Power” button right now, but keep pressing the “Home” for another 10 seconds.
Step 4: You’ll be informed that you’ve successfully entered the DFU mode after another 10 seconds, and you can release the “Home” button then.
Tried several times and still can’t get into the DFU mode? Don’t worry. You can try another way.

Enter the DFU mode without iPhone Data Recovery running

Note: Don’t run iPhone Data Recovery on your computer at first.
Step 1: Connect your device to the computer;
Step 2: Press the “Power” and the “Home” at the same time, and count for 10 seconds in your mind;
Step 3: Then release the “Power” button right now, but keep pressing the “Home” for another 10 seconds;
Step 4: Now, release the “Home” button and run iPhone Data Recovery on your computer, and you’ll get the window below;
start scanning iphone

Step 5: Click the “Start Scan” button and the communicating will automatically begin.
When you get into the DFU mode successfully, iPhone Data Recovery will start scanning your device for lost data now.

What is iPhone DFU mode?

DFU mode is a state that you can put your iPhone into where it can interface with iTunes but does not load the iPhone operating system or boot loader (this is the essential difference between the DFU mode and the device recovery mode). DFU stands for Device Firmware Update.

What is DFU mode used for?

The primary reason people need to access DFU mode on their iPhone is to change the firmware on the device. This can serve to downgrade to a prior iPhone firmware and operating system, or to use a custom firmware that is required for a jailbreak or SIM unlock. For instance, if you got the phones installed and decided you would rather have a prior version of the firmware on your iPhone, you would need to do this through DFU mode.

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