Nineshadow, Aug 15, 2019 at 2:01 PM : Hello. I've been using my OP3 for around 3 years now and I've been more than happy with it. It was and still is an amazing device and I don't see any reason to upgrade (other than maybe battery life). However, over the past month or so, I've been encountering an annoying issue. Everyone I talked to on the phone has been complaining about the sound quality. They couldn't understand me if I talked too quietly or too fast and they were complaining they could hear their own echo. I didn't take it too seriously, until I realized EVERYONE I talked to was telling me the same thing. So I did a call test to see for myself how bad the problem could be, and oh boy. The call quality is terrible. You can barely understand anything. I should mention I'm on OxygenOS 9.0.4. The microphone doesn't sound bad just during phone calls, but also in other recording software. I'm not sure if it's a software or hardware issue. Thanks!