Possible hardware problem?

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http://forums.androidcentral.com – So I've gotten my AT&T Galaxy Note 2 from BestBuy for about four months now. But recently, my headphones have started not working. When I do anything with sound on, I hear static. But when I unplug the headphones, the sound is fine. Before this, the headphones were totally fine. So is this a hardware problem? (HowTos)