dr.hemachandar, Aug 14, 2019 : Hi, Today some minutes back I have completed the andrpid patch update provided by OnePlus. I received the system update and after doing it, I can't hear the opposite persons voice and my voice was not clear to them. After this pathetic update, it made me mad on not answering any calls from anybody. even my mother can't hear my voice properly. Similarly, the mobile was getting heater up and my ear gets pain. What kind update was this. please provide some steps to rollback this latest update easier and to make my mobile to work as before. Thanks.