I use this code to open the Android tethering settings screen to allow the user to enable it or to disable it. It works well for almost all devices:
Intent oIntent = new Intent("android.settings.TETHER_SETTINGS");
oIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(oIntent);
For Honor devices I get the error "No activity found to handle Intent"
Does anyone know how to open the Tethering settings in an Honor device?