I'm in pretty deperate need of help as it's tough to make calls with my Note 10+. When I call someone they can hear themselves talk - when using both the native phone app and things like WhatsApp.
From my end it sounds completely normal, but they can hear their own echo. It happens on both landlines and mobile. When I use bluetooth or keep my phone on mute during the call, the problem goes away for the other person. It makes me think that it's something with the mic itself - as if there is a feedback loop. I haven't dropped it and there's no damage.
I have restarted my phone, turned on & off wifi calling/bluetooth.
Sorry you are having that issue. Have you tried factory resetting phone? If factory reset phone and still having issue you should contact Samsung Support. Good luck!
Just in case anyone else has this issue, I ended up taking it to a uBreakiFix (the authorized Samsung repair in my area) and it was the mic next to the charger that was issue. They had to replace the charger (I guess it's attached to the mic) and that was the fix. After they fixed it, it was all good.
