I got a droid razer from my friend and went and got it activated. once i got home i realized that none of the sound would work for youtube or ringtones or anything. i tried installing a few apps that some other posts said to try, like the speaker cleaner app, and one other app. and another post said that theirs worked again after shutting it off and turning it back on. i tried that too and i still have no sound. I tried plugging in headphones and the sound works through the headphones but not through the phone. what should i do? P.S. the sound worked when my friend used the phone. but it doesnt now.