Firebase Device token is always null and OnTokenRefresh is never called on some devices

Question

I am so much frustrated, since i am continuously getting null device token on certain devices whereas its working perfectly fine on many other devices. the phone i am talking about is running on 4.4.2. I have added the following code into my manifiest.

  <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />  
<service android:name=".Services.FireBaseMsgService">
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT" />
            </intent-filter>
        </service>
        <service android:name=".Services.FirebaseIDService">
            <intent-filter>
                <action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
            </intent-filter>
        </service>

Please guide me on this,since i have already wasted much time on this issue searching and finding solution.

Thanks in advance.

Answer 1

So finally i have got the answer and this might help someone.

After searching alot - i found it was a bug in firebase 11.6.0 release which i was using - just updated it to 12.0.1 and now i am able to get the token for every device.

Answer 2

当使用Firebase API且设备未安装Google Play服务时，firebase设备令牌为null 。