I have an LG Thrill phone that is only 4 months old, and all of the sudden my speaker doesn't work. My phone makes all the other sounds, speakerphone works, and the ringtones work but when I make a phone call I can't hear anything out of the regular speaker. It was working in the morning, and I went to work and hooked it up to my Pioneer bluetooth stereo, and used the stereo's microphone to make phone calls, and listened to music through my radio from my phone via bluetooth, and everything worked great. I have done this a few times before with no problems, but I have never left the bluetooth connection on all day like I did this day. After the day was over I went to make a phone call and I couldn't hear the phone I was calling ringing. I thought something was wrong with the connection, but I found that when I put it on speakerphone I could hear fine. It's like the internal speaker is disabled or something. I have looked for a setting everywhere but I can't find anything. Please help.