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From the home screen, select Main Menu Settings Security Settings Change Codes PIN code to change the PIN code.
PIN2 and PUK Codes
PIN2 codes are used for some settings. To change the PIN2 code, use the same procedure as outlined above for the PIN code.
A PUK code is the unlock code for the SIM card. This code can be used to unlock a SIM card when you have entered the wrong PIN code 10 times. When you enter the correct PUK code, you will be able to re-assign a new PIN code, after which the SIM card can be used normally. Contact your service provider for more information.
A PUK code can only be entered 10 times in a row. If you enter the wrong PUK code more than 10 times, the SIM card will be locked indefinitely.
Note: If a PUK code is supplied with your SIM card, store it securely.
Note: If you change the PIN code, please remember the new number. If you enter the wrong PIN code ten times in a row, the phone will lock the SIM card and prompt you to enter a PUK code to unlock it.
From the home screen, select Main Menu Settings Security Settings Lock Settings PIN Lock to enable or disable the PIN code.
PIN Code
A PIN is attached to a SIM card. If the SIM card is moved to another phone, the same PIN will still be required in order to make calls. When you assign a PIN to your SIM card, you will need to enter the PIN code when the phone is powered on. Without the PIN code, the phone will only be able to make emergency calls. The default PIN is assigned by the service provider.
Fixed Dialing
If you set Fixed Dialing Status to On, you can only dial numbers on the Fixed Dialing Numbers list. You will need to enter your PIN2 code to use this feature.
Master Clear/Reset
The Master Clear function will clear all user data and reset the phone to factory default settings. The Master Reset function will only reset the phone to factory default settings.
AT&T Software Update
This function will automatically check for updated software for the phone. If updated software is available, it will download and install the software.
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