From a Home screen, swipe up or down from the center of the display to access the apps screen.
These instructions only apply to Standard mode and the default Home screen layout.
Navigate: Settings > Apps.
Ensure 'All' is selected (upper-left).
If necessary, tap the Dropdown icon (upper-left) then select All.
Locate then select the appropriate app.
If system apps aren't visible, tap the Menu icon (upper-right) > Show system apps.
Tap Force stop.
To confirm, tap Force stop.
Do one of the following:
These options may vary depending on the app, and may not be available for some apps.
Resetting an app doesn't remove saved items on the device (texts, pictures, voicemails, etc.); however, saved passwords for Wi-Fi, settings, backgrounds, etc. within the app itself may be reset.
Tap Clear data, review the info then tap OK to confirm.
Tap Manage storage > CLEAR ALL DATA, then tap OK to confirm.