Resetting all settings
A common troubleshooting step is resetting all of your apps to their factory defaults if you are having trouble with your device; your personal information will not be deleted.
1.
From the Home screen, tap Settings.
2.
Scroll to System.
3.
Tap System.
4.
Tap Restart & reset.
5.
Tap Reset app preferences.
Resetting your settings will reset all customized settings on your phone. Personal information will not be deleted.
6.
Tap Reset.
7.
You've completed the steps!
