Suvanshdutt, Apr 16, 2019 at 12:27 AM : I have op6 with magisk, viper4android and bluspark kernel installed. Im on oos 9.0.4. Whenever i try to listen i keep hearing crackling sound. This does not happen on my pc or my other phone. I have tried to flash the stock rom and then try and listen but the result is the same. Please help.