1. MOUTHPIECE PROBLEM PLEASE, IF YOU PUT ANY SUGGESTION HERE IN PRACTICE AND YOU DAMAGE A PHONE YOU ARE RESPONSIBLE FOR IT. ONLY FIX WHEN YOU ARE SURE YOU ARE CAPABLE OF FIXING DEVICES. BUT BE EXTREMELY CAREFUL. DON'T MESS WITH PEOPLES PHONE! Easy way to identify mouthpiece problem. 1. Whenever you make calls with your cell phone people don't hear what you are saying. But it's not always mouthpiece can cause that, bad network can be responsible for that. 2. Another way to be sure if your mouthpiece is bad is, try to use your cell phone record voice. After recording play the sound, if you can't hear anything just know your mouthpiece is bad and need fixing. So whenever your mouthpiece is failing probably people can't hear what you are saying it is best to take it to a qualified mobile phone repairer. He is in the best position to fix it. Now lets say you are here as a learner. How can you fix it yourself? Before you proceed, ask yourself. Can I open th