Microphone problems, replacement doesn't help. Secondary mic works

phidias81

Senior Member
Jun 22, 2016
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Hello, my primary mic doesn't work, I replaced the board, and it still doesn't work. What could it be? The flex cable maybe?
My secondary mic (videos and speakerphone) works correctly. Any way to set the secondary mic as default mic for calls and voice messages?
This is the full story: My mic was actually working, but my microusb had charging problems. I cleaned it with Contact cleaner spray, and the microusb started working but the microphone stopped! So I though the clearer liquid ruined the microphone. I first replaced only the micropone, soldering a new one. It didn't work. Then I replaced the whole bottom board. It didn't work. What could it be?
At the moment I'm forced to use it with external headset-microphone, but it's not really convenient