Palm 750 manual Locking the SIM card, Check the Require PIN when phone is used box

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C H A P T E R

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 You need the following:

•Make sure your phone is on and that you’re inside a coverage area (see Turning your Palm® Treo™ 750 smart device on/off).

•Get your default PIN from Cingular

1Press Start and select Settings.

2On the Personal tab, select Phone .

3Select the Security tab.

4Check the Require PIN when phone is used box.

5Enter the PIN and press Done (left action key).

6Press OK to finish.

7Turn 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.

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