diff --git a/android-refimpl-app/app/src/main/AndroidManifest.xml b/android-refimpl-app/app/src/main/AndroidManifest.xml
index 6f985b092..34f6c058b 100644
--- a/android-refimpl-app/app/src/main/AndroidManifest.xml
+++ b/android-refimpl-app/app/src/main/AndroidManifest.xml
@@ -303,6 +303,13 @@
                 <action android:name="android.intent.action.BOOT_COMPLETED" />
             </intent-filter>
         </receiver>
+<!--
+        <receiver android:name=".ExactAlarmChagedReceiver" android:enabled="true" android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.ACTION_SCHEDULE_EXACT_ALARM_PERMISSION_STATE_CHANGED" />
+            </intent-filter>
+        </receiver>
+-->
         <receiver android:name=".PowerReceiver"
             android:exported="true">
             <intent-filter>
diff --git a/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/ExactAlarmChagedReceiver.java b/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/ExactAlarmChagedReceiver.java
new file mode 100644
index 000000000..37218b6dc
--- /dev/null
+++ b/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/ExactAlarmChagedReceiver.java
@@ -0,0 +1,67 @@
+/**
+ * [TRIfA], Java part of Tox Reference Implementation for Android
+ * Copyright (C) 2017 - 2020 Zoff <zoff@zoff.cc>
+ * <p>
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ * <p>
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * <p>
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
+package com.zoffcc.applications.trifa;
+
+import android.app.AlarmManager;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Build;
+import android.preference.PreferenceManager;
+import android.util.Log;
+
+import static android.content.Context.ALARM_SERVICE;
+
+public class ExactAlarmChagedReceiver extends BroadcastReceiver
+{
+    private static final String TAG = "trifa.ExAlrmRecvr";
+
+    @Override
+    public void onReceive(Context context, Intent intent)
+    {
+        Log.i(TAG, "-- ON_SCHEDULE_EXACT_ALARM_PERMISSION_STATE_CHANGE -- :000:" + intent.getAction());
+        if (intent.getAction().equals("android.intent.action.ACTION_SCHEDULE_EXACT_ALARM_PERMISSION_STATE_CHANGED"))
+        {
+            Log.i(TAG, "-- ON_SCHEDULE_EXACT_ALARM_PERMISSION_STATE_CHANGE -- :" + intent.getAction());
+            try
+            {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
+                {
+                    Log.i(TAG, "-- ON_SCHEDULE_EXACT_ALARM_PERMISSION_STATE_CHANGE -- :001");
+                    AlarmManager alarmManager = (AlarmManager)context.getSystemService(ALARM_SERVICE);
+                    if (alarmManager.canScheduleExactAlarms())
+                    {
+                        Log.i(TAG, "canScheduleExactAlarms:true");
+                    }
+                    else
+                    {
+                        Log.i(TAG, "canScheduleExactAlarms:**FALSE**");
+                    }
+                }
+                Log.i(TAG, "-- ON_SCHEDULE_EXACT_ALARM_PERMISSION_STATE_CHANGE -- :099");
+            }
+            catch (Exception e)
+            {
+                Log.i(TAG, "-- ON_SCHEDULE_EXACT_ALARM_PERMISSION_STATE_CHANGE -- :EE01:" + e.getMessage());
+            }
+        }
+    }
+}
diff --git a/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/MainActivity.java b/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/MainActivity.java
index 5e34badc4..0f1b393d1 100644
--- a/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/MainActivity.java
+++ b/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/MainActivity.java
@@ -51,6 +51,7 @@
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
+import android.os.PowerManager;
 import android.preference.PreferenceManager;
 import android.provider.Settings;
 import android.util.DisplayMetrics;
@@ -638,6 +639,29 @@ protected void onCreate(Bundle savedInstanceState)
             return;
         }
 
+        /*
+        try
+        {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
+            {
+                ExactAlarmChagedReceiver ar = new ExactAlarmChagedReceiver();
+                IntentFilter filter = new IntentFilter();
+                filter.addAction("android.intent.action.ACTION_SCHEDULE_EXACT_ALARM_PERMISSION_STATE_CHANGED");
+                this.registerReceiver(ar, filter);
+                Log.i(TAG, "ExactAlarmChagedReceiver registered");
+            }
+            else
+            {
+                Log.i(TAG, "ExactAlarmChagedReceiver:below API S");
+            }
+        }
+        catch(Exception e22)
+        {
+            Log.i(TAG, "ExactAlarmChagedReceiver:EE:" + e22.getMessage());
+            e22.printStackTrace();
+        }
+        */
+
         Log.i(TAG, "M:STARTUP:toolbar");
         Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);