Samsung SCH-A610MSVXAR - Manual (Page 126)

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the lock code. The default lock code is the last four digits
of your telephone number.
2. Press
for
Lock Phone . The options listed in the
following table appear in the display.
3. Use the navigation key to highlight the Lock Phone option
of your choice.
4. Press to perform the function for the
highlighted option.
Important! If you change your NAM1 setting after setting the
phone to lock upon power-up and did not program a number
into NAM2, you won’t be able to access your phone. You
must call the Service Center to unlock your phone.
Change Lock
The default lock code for your phone is generally the last four
digits of your phone number. It is advisable to change the
default lock code to a secret code for security purposes.
1. In standby mode, press the left soft key ( ) Menu , then
press , for Security . You’re prompted to enter
the lock code. The default lock code is the last four digits
of your telephone number.
2. Press for Change Lock . You’re prompted to enter
the new lock code.
Option Function
Never The phone remains unlocked.
On power up
The phone locks automatically the next time your
phone is powered on and stays locked until you
enter the lock code.
Now
The phone locks immediately and stays locked
until you enter the lock code.