オリジナル投稿者： applei ,
that its not the right way to go to DFU mode, if you want to put your device in DFU mode just follow this steps. plug your iphone on the pc or mac then press and hold the power and home button for ten seconds, then release the power button while holding the home button and wait the confirmation for the itunes your phone is in recovery mode. and you will recognize your screen goes black. no itunes logo nor cable logo. if you can see the itunes and cable logo, your on a recovery mode. its not DFU mode.