Convert Iphone 3.5mm pin to standartd Samsung Android 3.5mm pin
Essentially, some Android phones have a L/R/Mic/Gnd setup while the iphone has L/R/Gnd/Mic. Switch those two pins around (3 and 4) and you should get the mic and the play/stop button to work. The Next/Prev button or volume control are not as simple. – Passerby May 9 '13 at 3:40