Apple mobile phone Didi.

There are many reasons why Apple's mobile phone ticks from time to time. E-mails, tweets, calendars, reminders, and even phone calls and text messages will have similar situations. As long as the settings on both sides of the notification and sound are inconsistent. If you often encounter this inexplicable sound, check it quickly.

Apple's mobile phone solutions from time to time are as follows:

1, first open the settings->; Voice, check whether you have received new mail?

2. Voice on setting-> Notify, check whether the mail is in the notification center