Device token can not get in new iPhone 6?

I have uploaded new build on the Test flight. and using this I downloaded apps on my new iPhone 6 and also downloaded in old i-phone 6, iPhone 5. Application working well both old phones but in new iPhone 6, Device token not getting properly since remote notification not working. Remote notification delegate not call in new iPhone 6. (didRegisterForRemoteNotificationsWithDeviceToken and didFailToRegisterForRemoteNotificationsWithError). On the same device, I tested other app notification but it was also not worked. So any solution on this please suggest me.

If you are using iOS 10 Did you make sure to enable push notifications in the xcode capabilities?

Device token can not get in new iPhone 6?
 
 
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