I am having issues right out of the box. When using speaker on phone calls, the person on the other line is able to hear feedback and echoing. I have no case on and literally just opened this last night. How can I fix this problem, or is this a defect?
Try closing all the background apps and see if that helps. You can also clear the app cache from the hard boot screen and then repair apps at the bottom of the list.
Power down the device then hold the volume up and the power/Bixby button and this will initiate the android recovery menu to access the cache clear and app repair.
