Nokia X7 user guide
Open and close an app
Open an app
On the home screen, tap an app icon to open it. To open one of the apps running in the background, tap check_box_outline_blank, and select the app.
Close an app
Tap check_box_outline_blank, and tap close on the app you want to close.
Find your apps
On the home screen, swipe left to see all your apps.
Close all running apps
Press check_box_outline_blank, swipe up through all apps, and tap CLEAR ALL .