Please install on Galaxy S, Galaxy S2, or their variants. This app is NOT for Galaxy S3, S4, S5, and so on. This is a shortcut for Samsung's TouchWiz 3G Setting (TouchWiz 3G Setting Widget). You can turn on or turn off the 3G network with this app. This will be helpful when you do not use Samsung's Launcher (TouchWiz Launcher) but the launcher that you use does not support shortcuts for activities or you want to add it to the dock. You can also add a shortcut as a status bar notification. For