My Android application was already live in play store. Now I have updated that app with push notification using gcm and thus installed the updated version from play store in 5 devices (HTC, Micromax, Samsung S3, Galaxy Nexus, Samsung Ace plus).
As per our logic all the device ids are stored in the server side database. And those ids are finally being send to GCM server. Now when push notification is being send, I am only receiving in HTC and Micromax.
What is the problem for other 3 devices (Samsung S3, Galaxy Nexus, Samsung Ace)?