Samsung SGH-I317TSAATT - Manual (Page 26)

Note: You can customize the Lock screen and set the type of
Screen Unlock you want to use (Face unlock, Face and
voice, Pattern, PIN, or Password). For more information,
refer to “Lock Screen Options” on page 174.
Troubleshooting
If your device has fatal errors, hangs up, or freezes, you may
need to reset the device to regain functionality.
� If your device is frozen and unresponsive, press
and hold the
Power/Lock Key for 8 to
10 seconds.
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