I just got a pair of headphones and when I opened them one side would not work. I want to take them apart and see if I can fix them myself but I don't know how. They are ear buds and I was starting to think that maybe the little copper stick is not touching the metal piece. Am I on the right track or is it smarter to just bring them back. They are a cheap set of headphones so it really doesn't seem worth is to bring them back. What do I do? Fix them myself or bring them back? Please help and thank you so much.