All of a sudden, in the middle of a video call, speakerphone stopped working. I could hear the other person but they couldn't hear me. I googled it, YouTube'd it, read about it on forums, rebooted, cleared data, cleared cache, tried safe mode. Nothing helped. If I turn OFF speaker, they can hear me but then I cant hear them unless I hold phone to ear like a normal call. Tested by calling a galaxy 7 user, and 2 iphone 8 users-same results. Not just video phone, also on normal call with speakerphone turned on. Microphone is working because I tested on voice text, hey google, etc. I use speakerphone all the time so this is a huge problem. Help!
Same problem on my Galaxy S9. To work around it until it's fixed, turn off speaker, then turn it back on. Happens more than once on every call and for me, it's been going on for at least a month.