My Phone Won't Play Ringtones

i had that same problem. mine wasstuck like that for a week and i thought i broke it. i was messing around with it and found out why it was like that. look at your look at were the numbers are at hold down the star button until it says normal mode activated or something like that you might have accidentley held that button down wthout knowing that. but once you see them words let go and you have all your volume back.