hey, i have one problem, some days ago i connected phone with usb and modified song in phone (not copied in pc) with nero wave editor. and now there is no sound when someone calls me, i mean i cant hear people speaking and people cant hear me. ringtone is ok, sms sound is ok, alarm is ok, but when trying to choose ringtone, there is no sound and there is no sound when trying to play song via microphone. but with earphones i can hear music....what to do?