I will try the just tetherboot. As for the holding home and power buttons that does nothing, I've tried that. I also forgot to mention that the restore all went thru no problem, I got the message from iTunes that my phone has been set back to factory setting. So I know the phone was restored with the 4.3.3 custom firmware I just do t understand why it placed itself back into the DFU mode (black screen) and now I can't get out of it.