Microphone doesn't work on a start of a phone call Galaxy J3

[user7VJR8KTf2b]

When I answer or make a phone call, people can't hear what I'm saying. Its like the microphone is off. If I turn on and off the speakerphone then the regular microphone will work fine.. It only does it at the start of a phone call. Please help

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[userJuva0v8Frm]

Samsung Galaxy J3 Emerge.  Carrier-Sprint.

[usermzGeCzPC87]

I myself have this problem but toggling the speaker phone does not help.

I have tried : 

•Restarting my phone

•using earplugs (w/mic)

And I just don't know what else to do

[SamsungAdam]

@usermzGeCzPC87; I see you have tried some troubleshooting steps already. You may also want to try the steps listed below. Let us know if this helps. 

• Soft Reset
• Tested in Safe Mode to eliminate third-party apps
• Cleared your app cache
• Cleared cache partition

[userJuva0v8Frm]

Your fix does not work.  I've even sent the phone while under warranty back to Samsung in Texas and they returned it to me stating "Cannot be Fixed".   Great company.....NOT.

[userJuva0v8Frm]

I was told to throw the phone away by an AT&T Vendor - that is a bad quality phone.

[Pickle-Frog-GreenYellowDog]

1 week old phone

5 of 7 mornings had Mike & speaker problem as described each morning.

Safe mode reboot & return to normal it works without loosing info etc.

Trying this:

Turn off wifi & data

Check in a.m.

If it works, something is happening in Norton or another update/scan

[userLkV1zuDUvN]

I'm having the same issue it started yesterday evening

[knightsurgeon]

Hello @userLkV1zuDUvN, can you please provide me with the model number and baseband version of your device?

[userOZSTX4YDkF]

I have a Samsung galaxy j3 and I have had this Mic issue since I got it this Tuesday. The Mic won't work at all, j can't talk during calls or say ok Google. I have tried to clean out the Mic port, clear data caches, restart the phone, turn speaker mode on and off during calls, the whole nine yards. Nothing works. If you can do your job and find out why this happens it would be greatly appreciated.

[useroqy5sRe4LM]

Bought my daughter Samsung J3 for birthday and having same issue. It is Model #SM-J337V. Hardware version is J337V.04. 

Tried a few of the suggestions in this thread and no luck. Please help.