overlay/frameworks/base/core/res/res/values/arrays.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2020 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

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     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.
-->

<resources>
    <!-- Device-specific array of SIM slot indexes which are are embedded eUICCs.
         e.g. If a device has two physical slots with indexes 0, 1, and slot 1 is an
         eUICC, then the value of this array should be:
             <integer-array name="non_removable_euicc_slots">
                 <item>1</item>
             </integer-array>
         If a device has three physical slots and slot 1 and 2 are eUICCs, then the value of
         this array should be:
             <integer-array name="non_removable_euicc_slots">
                <item>1</item>
                <item>2</item>
             </integer-array>
         This is used to differentiate between removable eUICCs and built in eUICCs, and should
         be set by OEMs for devices which use eUICCs. -->
    <integer-array name="non_removable_euicc_slots">
        <item>1</item>
        <item>2</item>
    </integer-array>
</resources>