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The Samsung Galaxy S6 Edge+ is the larger variant of the Galaxy S6 Edge smart phone.

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Callers hear an echo during calls?

Hi guys,

Whenever I receive a phone call from anyone, the callers are hearing a noisy echo of their voice as they speak. I tried many things to troubleshoot this issue as below:

- Hard reset the phone.

- Put the phone into the SAFE MODE.

- Check all the call settings searching for any relevant option, like: Noise reduction.

Note that I'm using Samsung S6 Edge+, with Android Marshmallow.

But I noticed something which is very weird, when I'm on an IM call, I don't face this issue, like when I'm calling someone in Facebook Messenger, or Viber. It's happening only in normal phone calls!!!!


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My s6 edge plus without Battery cover makes no Echo but with battery cover the caller heard two times!!


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Please try calling yourself, either to a landline in the house or to a friend's cell phone if they are with you.

Your phone has two microphones used for calls. There is a pinhole on the very bottom of the phone. That is the primary microphone. The pinhole on the top on the phone is the secondary microphone.

During your test call, speak into the primary mic at a normal volume. On the receiving end, check that the volume is "normal." Now put you S6 Edge+ in speakerphone mode and talk into the secondary mic at a normal volume. On the receiving end, check that the volune us normal. If you cannot hear anything try blowing directly into the pinholes. If talking into the mic produces no sound but blowing hard produces a tiny sound, the hole may be clogged with dust. If blowing produces zero sound, the mic is has probably gone bad. A failed secondary microphone can cause issues with background noise/ echoing.

Unfortunately if you confirm that your individual microphones perform nomally, but callers still complain of echoes, than you are out of luck. This would mean audio is being processed incorrectly, meaning a bad component in the motherboard.

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Ok so I missed the last part of your question that mentioned Internet-based calls are normal. This is yet more evidence of a processing issue.


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