Samsung SCH U520 - Cell Phone - ALLTEL Wireless, User Manual, Page: 216 / 278

216
Section 13
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On Power up — The phone locks automatically the next time
your phone is powered ON (The phone stays locked until you
enter the lock code.)
3. Use the navigation keys to highlight the Device Lock
Mode option of your choice.
4. Press the key to perform the function for the
highlighted option.
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 Menu (left) soft key ( ),
then press (for Settings ), and (for Phone
Settings ), and for Security . You’re prompted to
enter the lock code.
Note: 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.
3. Enter the new lock code. You’re prompted to re-enter the
new lock code for verification.
4. Enter the new lock code again. Your changes are stored.
Note: Your phone does not allow you to view the lock code for obvious
security reasons. If you change the lock code, be sure to write down or
memorize the new code.
OK