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64 Managing your Phone
4.5 Protecting your Phone
There are several levels of security on your phone. You can protect your
phone from unauthorized use by requiring a type of password called a PIN
(personal identification number) in order to make calls. Your first PIN will
be given to you by T-Mobile. Additionally, you can lock the keyboard or the
entire phone to prevent unauthorized access.
To enable the SIM personal identification number (PIN)
1. On the Home screen, select Start > Settings > More > Security.
2. Select Enable SIM PIN.
3. Type your PIN, and select Done.
Note To cancel without enabling the SIM PIN, press .
To disable the SIM PIN
1. On the Home screen, select Start > Settings > More > Security.
2. Select Disable SIM PIN.
3. Enter your PIN, and select Done.
To change the SIM PIN
Be sure to make a note of your personal identification number (PIN). When
the SIM PIN is enabled, you must provide this PIN to unlock the phone.
1. Select Start > Settings > More > Security.
2. Select Change SIM PIN.
3. In Old PIN, enter the current PIN.
4. Enter and confirm the new PIN, and select Done.
To lock the keyboard
Locking the keyboard turns off keyboard functionality. This is a helpful
feature if, for example, the phone is turned on and in your pocket, and you
want to prevent accidental keypresses.
• On the Home screen, press and hold END.
Once the keyboard is locked, the left soft key label changes to
Unlock.