My iPod touch 4th generation that is jailbroken and has a broken power button wont get out of dfu mode no matter what i do it did before but now it wont. i tried itunes to try and restore it but it didn't work. i tried to rejailbreak it with redsnow and it says it worked and everything but it still says its in dfu mode i have look all over the internet and i haven't found one thing that has helped me please help.