i tried these commands-

```
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=LOCATION_SERVICES"]];    
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=General"]];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=Wallpaper"]];    
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=Safari"]];

```

These codes opens Location, General, Wallpaper and Safari respectively in iOS 5.0 but nothing works in iOS 5.1.1
Anyone have any idea?