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I had (and I still have) problem with my phone, a Samsung Galaxy S3. Sometimes people hear me bad or doesn't hear me at all and this is a real vexing problem.

I brought the phone in a Samsung authorized center, they said me that my OS version (a Jellybean branded by H3G) could be bugged. They've replaced it. Now audio problem is still present and as if that weren't enough my phone freeze it's screen at least seven, eight times per day (I have to detach the battery to recover this issue).

I have installed a software to record my phone call, I have listen again every phonecall in which my interlocutor said that he doesn't hear me and... my voice is perfectly audible in registered phonecall.

I always thought that my microphone was defective but at this point I'm not so sure of this assumption. What can I do? I have no idea about the problem, could a non-branded Jellybean version resolve the problem? Could samsung completly replace my phone?

  • If you've got one, try using an external mic (like a headset) and then run some tests with that. If you're consistently getting good results, then the issue is likely the phone's mic. If you still get sporadic call quality, then it's likely the phone app. – Namuna Jul 15 '13 at 17:03
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Many phones, like mine, are having an issue where the phone "thinks" a headset is plugged when it is not (or vice versa). This can cause the phone to shut off one of all of the speakers and possibly the microphone as well. This basically renders the phone useless as a phone.

I created an app named SoundAbout that will detect when a headset is plugged in or out. The first time it will warn you and let you know that if you did not plug a headset in that there could be an issue.

To combat this, go into SoundAbout, click on "Headset behavior", and un-check the "Wired Headset detection" setting. Then reboot the phone to clear out any queued headset intents.

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