thanks for this , eventually managed to do it... now need to get it unlocked as it was 03 but now want to use vodafone :)

i bought a unlocked iphone 3g last year, now got new iphone 4s. reset old iphone to clear it all out as was giving it to my daughter.... now all its has is the apple icon on screen and wont even connect to itunes Help !!! whats wrong with it, it turns on and off but nothing else.... can...