hi every one i have problem with iphone 4 . my problem is i have ios 7.0.4 and i want to update to 7.1.2 but my power button broken . so i download frimewar 7.1.2 and i start redsnow and select custom frimewar with dfu mode when completed start restor with itunes and then show error so i start ireb to enter dfu mode and restor same problem with itunes and now ihave black screen i exit dfu mode and nothing and i try home butoon + power button same time nothing happen and now i fix it power button with technique § i know i mstake redsonw not support ios 7 and from month to now i can not fix my problem plz plz help