I've been having a very odd problem with my nexus aux port. If I plug in my headphones in the aux port, the right speaker only works at particular angles, otherwise it doesn't work. It's not selective to just one set of headphones, but another set, and my aux cable in my car as well. I tried cleaning the port with a wet Q-tip, thinking it was dust, but again it's still picky. I don't have insurance on my phone and I haven't dropped it, so I have no idea where to proceed. Will Sprint do an exchange with a refurbished phone as to I'm assuming it's a hardware defect.