If your mobile is under warranty..you can have it repair or if its beyond repair.. then they will replace the earpiece..like what happened before to my Nokia mobile.. I cant open it.. what they did.. they replace the face of the phone for which the on & off switch is connected( they change it cz it can't be repair)... Like Amoud..I suggest you go to Al Nasser Branch which is just opposite or adjacent of Doha Clinic.. say 100 meters opposite DC..you can look for Merla.. she can help you with your problem...hope this would be of help to your problem...