I apologize again, as I am using a translator.
Hello, good evening. I had forgotten to reply.
To rule out any problems, I decided to reinstall everything from scratch. I reinstalled Android 12 (microphone works). I installed Armbian (microphone works). The problem starts when I want to use my eMMC unit.
Armbian doesn't detect it, and I read that I have to delete the SPI Flash. After deleting it, it detects it, but my Android system stops working.
In the end, I ended up going back to a Linux distribution other than Armbian.