Ok, it took 7 tries but finally Korean voice calls work again as they used to. here is the patch for now (earpiece, speaker, headphones)
bluetooth probably does not work, how surprising
Google drive (Korean variants S/L/K)
Google drive (C/H variants)
Note for all variants, there is an issue if you use headphones and make calls, it tends to break routing it seems and disables mic, so for now avoid headphones until i can figure out wtf is going on. i also have to communize mixers again some how (which broke calls in the first place) as it is rubbish to have to apply 15 commits to 5 devices that are identical, lets see how it goes
i dont have any builds coming soon until i manage to figure out audio bullshit, funny enough this is the same reason blocking me from updating my other phones too...
big thanks to
@fuadm for testing like 10 zips and silpy on xda
please let me know how it goes in general