Z1574833893199 , via OnePlus 7T , Oct 18, 2021 : Since 2 years I was using my headphones through aux to type C converter. But recently after the android 11 update in OnePlus 7t , the voice is not going to the other caller though I can hear his voice , but my voice is not going . I checked it at OnePlus service center and they told the same it's a software update issue and they told that it I want to again use it then they can downgrade the update and I can use again. But due to that many things which is in android 11 will also be missing. So please OnePlus team please fix it ASAP in OnePlus 7t device.