if you try to enter DFU mode fresh out the box, it will not work. Just plug it to your pc, lunch itunes, and let it update to current firmware. Then, go ahead and follow the above steps. BEWARE, it's a tethered jailbreak.
ya i connected with the PC and updated the software its firmware 4.4.3(3323).I still stucked in DFU mode(waiting for device in DFU mode).
Is there any solution to get into DFU mode .