Android Version 11 force 3G, 4G Only Network Radioinfo Setting

Question

Please solve this code for Android Version 11 force Network 3G, 4G. I'm using this code but showing error.

try{
    Intent intent = new Intent("android.intent.action.MAIN");
    intent.setClassName("com.android.settings", "com.android.phone.settings.RadioInfo");
    startActivity(intent);
} catch(Exception e){
    Toast.makeText(getApplicationContext(), " Device not supported" , Toast.LENGTH_LONG).show();
} 

Answer 1

try{ Intent intent = new Intent("android.intent.action.MAIN"); intent.setClassName("com.android.phone", "com.android.phone.settings.RadioInfo"); startActivity(intent); } catch(Exception e){ Toast.makeText(getApplicationContext(), " Device not supported" , Toast.LENGTH_LONG).show(); }