Aporte original por: Ben ,
They are different in terms of where the screw mounting holes go. They don’t allow the screen / speaker to connect or to sit in properly. When you mean call audio muffled. Does your friend mean that the person he is trying to listen to (other side of the call) sound muffled for him or is your friend having trouble hearing other people because they sound muffled on the ear speaker? Trying to differentiate between a microphone or a earpiece speaker fault.