ios 7 push notifications not working

Delete your Facebook apps, reboot your phone. Kill all task, reopen what's app and Wechat, the problematic msg will prompt you once will do.

GREAT CHGZAPPL!!

No other solution worked and I didn't want to backup/restore.

So setting up iCloud Keychain handshaked again my iPhone with iCloud and now everything worked again.

Thank you very much, GREAT idea.

More specs on my asset: iphone4 with iOS 7.04 (can't go to iOS 7.1 because of the no save tethering settings)

Here is a fix

Turn off push notifications completely

go to fetch and set up a fetch time to check your emails, say every 15 min on the account you want; you should get email notices on the locked phone not immediately, but when the fetch occurs...

not perfect but better than missing altogether

RG