Compatible with Symbian Belle. This is screensaver and you have to activate it in device settings menu. Go to menu\Settings\Themes\Screensaver and mark screensaver you like. So please, do not press “Launch” button in Nokia store after download it would not work. This is alarm clock screensaver. two options : huge digital clock or small analog clock. Press camera button when locked to enable screenlight. See screenshots to more options.