Yesterday something very strange has happened to me.
I've unlocked bootloader of my Mi 10T Pro (because the original ROM MIUI 13 was giving me a though time, it would bootloop everytime I reboot the phone);
and then I've flashed the PIXEL EXPERIENCE ROM (the latest one, based on android 12).
Everything has gone ok, but the audio wasnt working, like to many other people here.
So I deleted the PE ROM, and flashed Lineage OS: with my surprise, also with Lineage os I had no audio (neither with bluetooth headphones, with no application audio-related working).
So under an act of desperation I've reinstalled the old, official 12.5 MIUI, from original Xiaomi source.
SURPRISE: The audio now wasn't working neither with the official firmware!!!!
What the hell has happened? Under MIUI 13 the audio worked, I was having problem with the microphone because of an hardware issue I think, but audio output worked!
Once I flashed Pixel Experience, every audio feature stopped working, even under official ROM!!!
Could it be that some audio IC has been damaged by wrong managing of audio by the PE ROM?
That a firmware of some audio IC has been overwritten, or something like that?
PS: I've flashed the official MIUI 12.5 using the fastboot images, so a whole system clean and reinstall... all the proper drivers should have been written to system.
Help me solve this mistery..