The original battery in my Z3 Compact swelled up and popped the back cover off, so I carefully replaced it with a nice new Replace Base battery and tested everything was still working before sealing it up again. Great!

Except... I forgot to check the microphone.

Now nobody can hear me during calls and the primary microphone test in the service menu doesn't record any audio. (The secondary mic is still working though).

Anyone have any suggestions before I take it to a repair shop? Is there anything I could try if I opened it up again?

I mean, the mic is soldered to the motherboard so replacing it would be beyond my skills.
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One of the problem I have found with different phones is there is a build up dirt in the
mic hole and it can sit in the hole for the mic blocking sound getting to it. This is something you could try and
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