android_device_xiaomi_cupid/overlay/SettingsProvider/res/values/defaults.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
     Copyright (C) 2022 The LineageOS Project
     SPDX-License-Identifier: Apache-2.0
-->
<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
    <!-- Default for Settings.Global.DEVICE_NAME $1=MODEL-->
    <string name="def_device_name_simple">Xiaomi 12</string>
</resources>