Learn how to setup on your Huawel Ascend Mate. When you use your phone for the first time, follow the onscreen instructions to set it up.
To power on your phone, press and hold Power button.
To power off your phone, press and hold Power button to display an option menu, and then touch Power off.
Note: If errors occur and you cannot power off your phone, press and hold Power button for 10 or more seconds to restart your phone.