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Is there a way to keep a consistent GCM iD even after we re-install our app. as of now its changing if i uninstall the app.

LEE
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No you can not.

If you are facing problem with identifying the correct device on server, then use device_id as primary id to identify device. Read Is there a unique Android device ID?, how to get device id and store it on server. Now if your registartion id has changed at any time, you have device_id and you can identify your device, and then you should update new registartion id of device.

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Pankaj Kumar
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  • Thanks ! device_id seems to be good, however i guess wifi mac id is more reliable than device_id. – LEE Mar 27 '15 at 05:52
  • If min sdk version of your app is 2.2 or below, then yes you can go with that. http://developer.samsung.com/technical-doc/view.do?v=T000000103 is a complete solution for each option which can give you unique identifier for device. They also listed disadvatages for each, so it will help you to choose your target. – Pankaj Kumar Mar 27 '15 at 07:48
  • I'm using 4.0 and above. So what do you suggest? – LEE Mar 27 '15 at 08:17
  • Then device id is better option. – Pankaj Kumar Mar 27 '15 at 08:19