I solved my mother's troubles at my parents' house by remote control of my smartphone
I tried to solve the problem while making a video call with Zoom
"Remote control with TeamViewer" "TeamViewer QuickSupport"
Some of the steps before use (such as agreeing to the terms of use)
The ID is displayed on the operated side Enter the ID on the operated side The operated side allows "remote support"
As an aside, mom's home screen is full of apps for getting great deals
I'll look at the settings that seem suspicious I'll check for app updates just in case
There seems to be no problem with the settings of the main unit
The problem is in an unexpected place. In the system settings, the "notification" volume was set to zero