PERMISSION • ACCESSIBILITY_SERVICE A - This app needs to be activated in accessibility service to show lock screen overlay view on top of all views in mobile screen. B - This application also use accessibility service features as follow 1 - take screen shots 2 - show power menu 3 - close system dialogs 4 - Turn on/off WiFi and data connection on behalf of user by automatically clicking on related system menu tiles 5 - Turn on/off location and Airplane mode on behalf of the user action.