I have a new pair of Samsung headphones that came with my Galaxy S5 that worked perfectly with my iPhone 4. I plugged them into my new iPhone 6 and at first the sound would cut in and out and the controls wouldn't work. After inserting the headphones into the jack multiple times, they now sound fine but the controls still don't work. Has anyone else experienced this issue? I know they aren't Apple headphones but they worked fine with my S5 and my daughter's iPhone 5C.