Believe that everyone buys an iphone, very few people will go to study a system function, the general is to get hand to use, some more annoying function also bother to close. In fact, turning off some features will make your mobile experience feel a lot higher.
1. WiFi assistants must be closed (Setup > Cellular mobile network > Wireless LAN Assistant)
The first step in getting a cell phone should be to turn it off, because when you turn on this feature, even if you're using WiFi, sometimes it automatically cuts to its own traffic. Some users sleep one night up to pay thousands of dollars, more or less related to this function.
2, the diagnosis results try to close (Settings > Privacy > Diagnostics and Dosage)
This feature can easily reveal the privacy of users, circled in the diagram "may include location information." This function is closed, it does not cause any inconvenience to our daily use.
3. Multiple reminders (Settings > Announcements > Information > Repeat reminders)
Believe that many people are the most annoying is this, there are many people think that this may be a fixed function of the Apple system. Not really, find the information in the notification, and then by repeating the reminder can be set.