Some1 please help me.IPhone 3gs related?

i just a iphone it was jail broken and unlocked. its working fine!, but when i deleted and its content. it took 1hr to load and after that the apple logo appears and a timer its been like that since 2hrs, i tryed connecting it to itunes and it dosent show up. please help me some1 please tell me what it means and what to do. thank u so much 4 reading
 
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