[p0ww0ww0w]

I'm having a problem with my phone. when i make a call i don't hear the person I'm calling, and they don't hear me, i also cant hear any music out loud. if the plug in the head set it works, and with a bluetooth it works too. i already did a master reset and still not sound! i don't have insurance and i called UT Starcom and they told me i could send it to repair with them but it takes 7 to 10 business days. so i was just wondering if any of you have had the same problem and might know how to fix it or should i just send it for repair?!