After few more days the whole 950XL was silent, no reminders, no notifications, no sound. I suspect the last WP10 update had some bugs and could not install properly. That's the reason many users are reporting apps malfunction after Anniversary update. I tried all I could to no avail and finally had to have a hard reset. After hard reset I am noticing changes in wording of several SETTINGS options that were not there after Anniversary update. So I concluded that Anniversary update was not programmed properly by WP10 computer programmers. Hard reset usually causes 2 to 3 days or more waste of my time to reset all thing back together like email accounts, passwords of many web links, etc.