Main microphone-sound really bad
Hi
I tried to fix an iPhone 4 that had a bad sound from its microphone during calls. It´s like a muffled sound, like having your hand in front of your mouth while speaking.
What I did was change the whole dock-connector piece, which has the bottom microphone attached to it. link to part
I thought this would be the answer to the problem, and thought so too after testing it with the SoundRecording-app, where the sound is really good. (from what I have read, this app also uses the second mike on top of the phone, hence the good sound...?)
Then the owner of the iPhone tested it while calling me, and I had trouble hearing what he said.
Any suggestions to what I can do to fix this?
I thought of checking the grill in front of the mike, rinse it if dirty, together with the actual rubber-cover.
Is this a good question?