Singleuser boot

How do i exit my iphone, when it is in singleuser root -- fsck not done root device is mounted read-only i have the same problem on screeen it said "single user boot fsck not done root device is mounted read - only " i try to connect to i tunes but it dosent work and i dont know wat to do now?? i even try hodling both sleep key and home key together hoping that it might work but nothing happend