Uploaded by sikmenios on 1 Dec 2011
How to put your iPhone, iPad or iPod Touch in DFU mode.
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 what really differs DFU mode from 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, to tether boot a jailbroken device or to use a custom firmware that is required for a jailbreak or SIM unlock. For instance, if you got the iPhone OS 4 download 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.
How to put your iPhone iPad or iPod Touch in DFU mode jailbreak hack downgrade restore fix tethered boot redsn0w greenp0ison pwnage tool sn0wbreeze tether reboot cydia tweak recover recovery