Nokia 7250i - Manual (Page 46)

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Phone security
6 Phone security
Note: The phone must be switched on to use these functions.
Do not switch on the phone when the use of a wireless phone
is prohibited or when it may cause interference or danger.
An array of security features prevents accidental calls, allows you to
restrict the calls your phone can make and receive, and keeps your stored
information safe.
• KEYGUARD
With Keyguard, you can lock the keypad to prevent keys from being
pressed accidentally.
If the keypad is locked, it unlocks when you receive a call. After the call,
the lock automatically reactivates.
Lock the keypad
1 Select Menu with the Left
selection key.
2 Press the Star key.
Unlock the keypad
1 Select Unlock with the Left
selection key.
2 Press the Star key.
When Keyguard is on, calls may be possible
to emergency numbers programmed into your phone (for example, 911).
Enter the emergency number and press the Talk key. The number appears
in the display after you have keyed in the last digit.
• PIN CODE REQUEST
The PIN code protects the SIM card from unauthorized access. The PIN code
can be 4–8 digits in length. After three successive incorrect entries the
PIN code is blocked and you will be asked to enter the personal unblocking
key (PUK) code.