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Editorial Team
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Asked: 2026-05-27T12:20:40+00:00

I am registering for Push Notification by calling the following piece of code: [[UIApplication

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I am registering for Push Notification by calling the following piece of code:

[[UIApplication sharedApplication] registerForRemoteNotificationTypes:UIRemoteNotificationTypeBadge|UIRemoteNotificationTypeAlert|UIRemoteNotificationTypeSound];

But in some rare cases following delegate does not get called:

- (void)application:(UIApplication *)iApplication didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)iNewDeviceToken {

Not even following method gets called:

- (void)application:(UIApplication *)iApplication didFailToRegisterForRemoteNotificationsWithError:(NSError *)iError {

What could be the reason for this. I am proceeding with my app flow once I received the device token. So, in some rare scenarios my app hungs.

Any clue?

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1 Answer

  1. Editorial Team

    According to the documentation, neither of the callbacks will happen until the device has a persistent connection with the push server. So if there is no wifi or data connection available, the callbacks won’t happen – and apple doesn’t regard this as an error condition. As far as I can tell, the only errors that can happen to cause the didFail… callback are an incorrect certificate/app permissions issue (a development problem), or the user declined permission (though I am only sporadically able to reproduce this by changing the date and turning the phone off).

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