In some situations, we have to put our iPhone, iPad or iPod to DFU mode, for instance, jailbreak. If you need to enter DFU mode on iPhone, iPad and iPod, you can read this article to get everything you need to know about DFU mode.
DFU stands for Device Firmware Update. DFU Mode is a way to get your iPhone, iPad or iPod to interface with iTunes but does not load the operating system (this is the essential difference between the DFU mode and the device recovery mode).
Tips: If you are to get into recovery mode or stuck in recovery mode, you can use the freeware ReiBoot to enter or exit recovery mode with 1 click.
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.
To use the iOS data recovery tool iPhone Data Recovery, you also need to get your device access DFU mode first. Using this device you can restore lost files if jailbreak, iOS update or something else cause you lose data on iPhone, iPad and iPod.
The tutorials below describe how to put iOS device to DFU mode. You can do it on any iOS device. Connect the iPhone to your computer and launch iTunes. We just use iPhone as a demo.
You should know that at this point you are in DFU mode.
Still you can try another way to put your iPhone, iPad or iPod to DFU mode, which is slightly different from the method above. Here we take iPhone for example:
At no point will the display come on, which means that you've successfully entered into DFU mode.
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