Android has a special Safe Mode option in Android. All third-party apps are disabled, enabling you to see if your problems are caused by apps. Getting out of Safe Mode is as easy as rebooting your phone (or tablet) again. You can clear the data cache for any suspicious apps or uninstall them completely from Safe Mode or after rebooting again. If you device works smoothly in Safe Mode you know it’s an app you’ve installed that’s at the root of your problems.”]
Source: https://gizmodo.com/access-androids-hidden-safe-mode-to-troubleshoot-proble-1748282425