I have a Samsung A20s that I purchase a year ago. Was working fine until an update a few days ago. Now having issue with calls. Some calls will not even ring or register, they end up leaving a message and say it jumped straight to voicemail. Other calls I can answer, yet can not hear the other person unless I put them on speaker phone. As well, making calls, it will say it is calling and just hangs there and then ends the call not ever making the call. When the call does go through, same issue as before, can’t hear the other person.
I have tried all types of troubleshooting. Restarted, factory reset, etc. I did some diagnostics that the phone has and I am able to hear music from the ear speaker, when it does this said diagnostic. So I am assuming the ear speaker is good. But seems in calls, this speaker does not work. However, like mentioned, some calls on speaker phone do work.