Well i had no problem with my iphone (3gs - 32gb) But since i formatted my pc, i could no more detect it on my pc.. (it keeps saying unknown device) I thought it was my usb driver, but it's not the case since i can use my pendrive, wireless mouse/keyboard, netgear and speaker(usb port) without problem.. And which is weird is that sometimes(not always well let's say really really rarely) it detects the phone! Thus i was forced to charge with the socket. But today i could not even charge it with my socket :-S I was thinking the port where i put my usb cable(below the iphone) was out of order now. But when i switch off the phone and connect it to my pc - i just saw the apple logo - switch on (without that i touch anything) but not charging... I don't know what's going on with this phone.. Help please :-S I can't return it to the apple store, since it's someone from another country who sent this phone to me!