How to cheat smartphone audio codec?

Question

Do it yourself

There is a Galaxy S7. The microphone line has stopped working. Doesn't work extra. not left. The microphone on the headphones works. I decided to farm and solder the microphone directly to the mini jack and survive for the time being. But the problem is that when you connect the mini jack, the sound from the speaker goes into the headphones. Is it possible to somehow deceive or close something so that the recording comes from the mini-jack microphone, and the sound from the external speaker?

Answer 1

I see the following solutions:
1) Throw out the old smartphone and buy a new one.
2) Diagnose and repair the microphone line
3) Take it to a smartphone repair specialist
And what you are asking is just a huge crutch, the problem should not be bypassed, but eliminated.

Answer 2

I don't know how much the Beaver Corporation product is now in line with Linux, but... all modern audio codecs have an internal signal switch. Maybe this article will point you in the right direction?