overlay/packages/apps/Phone/res/values-mcc310-mnc004/config.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2013 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->

<!-- Phone app resources that may need to be customized
     for different hardware or product builds. -->
<resources>
    <!-- Configure certain GsmUmtsOptions to be available or not. The
         default values are in Phone/res/values/config.xml and maybe overridden
         in operator specific resource directories or device specific overlays. -->
    <bool name="config_apn_expand" translatable="false">false</bool>
    <bool name="config_operator_selection_expand" translatable="false">true</bool>
    <bool name="config_prefer_2g" translatable="false">false</bool>
</resources>