Settings > communications(tab) > wireless & networks > Mobile Networks >3G service…I have seen an application which does this..
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName("com.android.phone", "com.android.phone.Settings");
startActivity(intent);
this code opens up until Mobile Networks..
Specifically i wan to open up 3G Service in Mobile Networks..
There is no documented and supported way to do this, and any undocumented/unsupported means will not be reliable. Few Android devices have a “communications(tab)” entry in Settings, few have a “3G service” entry in Settings, etc.