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