Palm Treo 750 User Manual page 222

12
Y O U R P E R S O N A L S E T T I N G S
Locking the SIM card
You can lock your SIM (Subscriber Identity
Module) card to prevent unauthorized use
of your mobile account. When your SIM
card is locked, you must enter the PIN to
power on your phone to make or receive
calls, except for emergency numbers. The
SIM card remains locked even if you move
the card to another phone.
When your SIM card is locked, you can
unlock your SIM card by trying to turn on
the phone. A dial pad appears for you to
enter your PIN.
BEFORE YOU BEGIN
following:
Make sure your phone is on and that
•
you're inside a coverage area (see
Turning your Palm
device on/off).
Get your default PIN from Cingular
•
214
L O C K I N G Y O U R T R E O 7 5 0 A N D I N F O
You need the
® ™
Treo 750 smart
1 Press Start and select Settings.
2 On the Personal tab, select Phone
3 Select the Security tab.
4 Check the Require PIN when phone is
used box.
5 Enter the PIN and press Done
(left action key).
6 Press OK to finish.
7 Turn your phone off to activate the
phone lock feature.
Your SIM card locks when you turn off your
phone and turn it back on. When your SIM
card is locked, you can unlock your SIM
card entering your PIN.
.