In fact, very simple as long as we hold the phone's "home button" + "power button" until the Apple phone shutdown can be, shut down after we just click the power button can be turned on.
iphone5s often freezes the solution
The most thorough solution to the Apple crash is to brush the machine, preferably using the official website to download the stable firmware for upgrades
Re-brush Machine method
Updating the IPhone may solve the problem for wireless updates, click Settings > General > Software Updates and follow the on-screen instructions. If you cannot make a wireless update, try connecting to your computer and using ITunes to update your iPhone.
Restore the IPhone
To restore the IPhone, first make sure to use the latest version of itunes and do a good job of data backup to prevent data loss. Next, connect the IPhone. In the left column, under Devices, click the IPhone, and then click Restore in the Summary tab.
Experience
Mobile phone often crash must be the phone is not enough memory or open most of the application caused, we just get them into the regular optimization process, using the relevant software we can eliminate the memory garbage.