iphone Flash machine iphone into UDF

First, there is a problem entering the UDF:

Key is the black screen after pressing the power key to the screen lit the +home key and then press the black screen 4 seconds or so after the home button and then press about 7 seconds is the UDF interface

Not the interface ~ All Black. You can not drive the power button.

Then download itunes I was the next itools mom to toss half a day ...

Then there is a small mobile phone, after the search for music into the next to recover.

iphone Flash machine iphone into UDF