Problems

Does it work on speakerphone, or with a wired or Bluetooth headset? If so, make sure the primary mic opening isn't blocked (e.g., by a case, or by your finger, or by debris lodged in the opening).
 
Sometimes I answer my phone and people can't hear me, but I hear them.

Does it happen with Le Eco Earphones? I have had issues with the microphone on the Earpods, where it stopped working. Sent back two for replacement.

Also, had issue when on call and screen goes off, microphone goes mute.

I reported both issues to Le Eco via the bug report.
 

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