Iphone keeps freezing at the end of the boot animation, PLEASE HELP!!!!!!!!!

[jforeman95]

My iphone 4 was stolen along with it's otterbox. It was jailbroken, and I had it returned to me from a friend that knows the prick who did it. I retrieved it today without it's otterbox and was told that the battery was dead. I took it home and tried to charge it over and over and no success. When ever my phone would boot up it would show the apple and the litle boot screen animation I have on it since its jailbroken, but it always freezes at the end and does'nt proceed. Its still doing this and I've tried to reset it by holding both buttons for different times and no luck. I can't even restore it due to random errors I keep getting from itunes. I've wasted a lot of time trying to fix this but I'm getting no where. Any suggestions? And also my phone has been jailbroken for atleast a year and a half and I have had no problems until today