I've only had my phone since December and am already having problems with it. I've had problems with it for several weeks now and when I took it to the local store all the lady did was turn off my gps and tell me my phone is working fine. Tonight my back speaker quit working so I can't use speaker phone. I tried everything I could and nothing worked so I finally restarted it. The phone turned off and wouldn't come back on. After about an hour of taking the battery out, replacing it, plugging it up to the charger, etc it finally came on. The speaker still isn't working though. I've tried everything I can and everything I have read online and nothing is working. Any suggestions? Do I qualify to get a different s4 one since it's still under the one year warranty?