iphone 3g not restored!
 

hi

i have iphone 3g .when i listen music restart & hang on restor logo.
i try restored it by itunes but dont restored & appear this error on itunes:

the iphone could not be restored.an unknown error occureed(1600

i test all firmware (2 ,2.2.1 3 3.1.2 & 3.1.3) but dont restored

just restored by 2.2.1 or 2.0.2 but not rebot phone & only hang on apple logo

1-test all itunes ver(8 9.2 & 9.3)
2-change usb port & computer
3-i test it in dfu mode
4-change cable connector on phone
5-i restored 20 iphone by this computer & dont have any problem

iphone restored only by itunes or have any programs?

plz help

plz help!!!!!!!!!!!!!!!!!!!!!!!!!!!

same problem for me please help

have u fixed n how????

u can try to restore with custum firmware

iphon 3g on usb hang i tryd restor but not i tryd jailbreak but stil on hang pls hilp