iPad DFU Mode 模式

Open iTunes on your computer and leave it running. Unplug the iPad from USB. 

Hold the home button continuously and reconnect to computer via USB. 

Keep holding it until it goes into recovery mode (iTunes -> USB logo on the iPad). 

Click restore without touching the keyboard.

首先你把iPhone插上電腦,打開iTunes

接下來進入DFU模式<工程模式>HOME鍵休棉鍵一起按,

畫面跳掉後,<這時HOME鍵休眠鍵還是按著>心裡默數7秒後

休眠鍵放掉,這時iTunes就會跳出iPhone的裝置,按回復就可以了!