"Home Home key" to manually close the system background application. This method can quickly shut down some processes to release memory without restarting the system.

After double-clicking the "Home Home key", press and hold the application icon that appears below, and then the "stunning minus sign" will appear in the upper left corner of the application icon and "shake it". We can click the red minus sign to force the application to quit.

2. Turn off and restart the device, iOS

Once the device is restarted, the whole system will be reinitialized. Use this method when double-clicking the HOME button on the home screen to close the application doesn't work.

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iPhone

For example, press and hold the "power button" on the top of the phone, and then a red shutdown arrow will appear at the top of the screen. Slide the arrow to turn it off. Finally, press the "power button" to restart the machine.

3. Of course, ios is not perfect. Now the latest version is ios7.0.3. With the continuous updating of the system, it has more functions and better system optimization. So upgrading the system again and upgrading the new version of the system can repair the shortcomings of a system.

4. In addition, update the application in time. Many applications will be released after a period of time, and corresponding updates will also be released. New updates include content updates or running speed updates, so software applications need to be updated in time.