New answers tagged notification-bar
Assuming I'm understanding your question correctly, you want a "pinned" notification, meaning a notification that stays in the notification bar after you tap it and open the app in question. If I am correct, you might want to look into apps that let you create your own notifications, like the app Custom Notification. This could clutter your app drawer a ...
Root your phone. Install Xposed Framework and install a module for hiding the extra sim sign.
Android 4.4 KitKat has introduced Immersive Full Screen Mode. There's an app in the Play Store exploiting this feature: Immersive Full-screen Mode. It doesn't even need Root access.
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