Below is a sample code snippet demonstrating how launch the Cellular Settings app via the URI Scheme and LaunchUriAsync method in Windows Phone using C#.
How to Launch the Cellular Settings App using URI Scheme in Windows Phone 8?
// Function open the cellular Settings App using URI Scheme in Windows Phone 8 using C#.
private async System.Threading.Tasks.Task LaunchCellularViaURIScheme()
{
await Launcher.LaunchUriAsync(new Uri("ms-settings-cellular:"));
}