The basics
•Strong alphanumeric: Use an alphanumeric password. A password must be more than 7 characters and contain at least 3 of uppercase and lowercase letters, numbers, or punctuation marks.
5.Enter a password in the Password field.
6.
7.Press the Done soft key.
8.Press the Yes soft key.
Note: Press 
and select Device lock from the Quick List to manually lock the device.
To unlock your device:
1.On the Home screen, press the Unlock soft key.
2.Enter the password and press the Done soft key.
Activating the SIM PIN
When SIM PIN is enabled, you must enter your PIN supplied with your device each time you turn the device on or insert the current SIM card into another device. Consequently, any person who does not have your PIN cannot use your device without your approval.
1.On the Home screen, press the Start soft key.
2.Select Settings → More... → Security → Enable SIM PIN.
3.Enter the PIN and press the Done soft key.
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