AT&T Z431 - Manual (Page 29)

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.
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.
50 Settings
My Menu allows you to customize shortcuts to frequently used functions on
your phone. From the home screen, press the Left Soft Key for Go To. My Menu
displays the list of menu shortcuts.
Using the keypad, press the number of the shortcut to access it immediately.
To add a shortcut, use the 4-Way Navigation Key to highlight a slot designated
as Empty.
Press the Left Soft Key for Options and press the OK Key to Assign. Choose
from the list of Main Menu items and press the Left Soft Key to Assign
the shortcut.
To remove a feature from the My Menu list, press the Left Soft Key for Options
and choose Remove > OK.
Customization
51 Customization