Powering On Your Mobile Phone
Press 
. The first time you power on your phone, you will be asked to sign in to your account and set up your mobile phone.
If personal identification number (PIN) protection is enabled on your mobile phone, you must enter your PIN before using the mobile phone.
Power-On Setup
When you turn on your phone for the first time, You can follow the onscreen instructionstocomplete thesetup, or skipthe setup and do it at another time.
Turning On Fast Boot
1.Touch 
> Settings > Applications.
2.Select the Fast boot check box.
Do not turn on Fast boot while on an airplane.
Powering Off Your Mobile Phone
1.Press and hold 
to open the Phone options menu.
2.Touch Power off.
If Fast boot is enabled, the phone will enter the deep sleep mode. If Fast boot is disabled, touch OK to shut down the phone.
Locking the Screen
•When your phone is on, press 
to lock the screen. When the screen is locked, you can still receive messages and calls.
•If your phone is idle for a while, the screen will lock automatically.