AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.dady8889.huaweisettings"
    android:sharedUserId="android.uid.system">

    <uses-sdk android:minSdkVersion="23"
              android:targetSdkVersion="25" />

    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:label="@string/app_name"
        android:persistent="true">

        <activity
            android:name=".SettingsActivity"
            android:label="@string/app_name"
            android:theme="@style/ApplicationTheme">
            <intent-filter android:priority="1">
                 <action android:name="android.intent.action.MAIN" />
                 <!--<category android:name="android.intent.category.LAUNCHER" />-->
                 <action android:name="com.android.settings.action.EXTRA_SETTINGS" />
                 <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>

            <meta-data
                android:name="com.android.settings.category"
                android:value="com.android.settings.category.device" />

            <!-- The cake is a lie? -->
            <meta-data
                android:name="com.android.settings.icon"
                android:resource="@drawable/ic_cake_black_24dp" />
        </activity>

        <receiver android:name=".Bootreceiver">
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED" />
            </intent-filter>
        </receiver>

    </application>
</manifest>