earphone jack has a problem about microphone connection

I put the earphone on the jack while I'm speaking on a call. I can hear the other's voice very well but the other side cannot hear my voice at all. I've checked with different and new earphone and it didn't work too. When I put those earphones to anther phone, they were in good situation.

The main question is how to fix the earphone jack to hear the voices from both sides? How to make connection with microphone to that jack.

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