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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.

Settings

Settings

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AT&T Z432 manual AT&T Software Update, Fixed Dialing, Master Clear/Reset
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Z432 specifications

The AT&T Z432, a compact and user-friendly feature phone, stands as a significant option for those seeking a straightforward mobile experience without the complexities of smartphones. Known for its durability and impressive battery life, the Z432 is an ideal choice for users who prioritize basic communication functionalities over advanced technology.

One of the standout features of the AT&T Z432 is its sleek design. With a clamshell form factor, the phone easily fits in pockets and provides physical protection for the keypad and screen. The exterior is generally robust, suitable for daily wear and tear, while the inner display is clear and easy to read, ensuring visibility in various lighting conditions.

In terms of technology, the Z432 operates on a 2G network, which allows users to make calls and send text messages without the distractions of data-heavy applications. This simplification of use appeals particularly to seniors or those who may not be tech-savvy. Despite its basic capabilities, the phone includes essential features such as a built-in camera, which allows users to capture spontaneous moments, albeit at lower resolutions compared to modern smartphones.

Furthermore, the AT&T Z432 boasts a physical keypad, providing tactile feedback that many users find advantageous for texting and dialing. The device supports SMS and MMS messaging, making it convenient for quick and direct communication with family and friends.

Battery life is another highlight. The Z432 can easily last for days on a single charge, thanks to its modest power requirements. This extended battery performance alleviates concerns about frequent charging and allows for more freedom in usage.

The phone also supports Bluetooth connectivity, enabling easy pairing with wireless accessories such as headsets for hands-free calling, or for transferring files with other devices.

The AT&T Z432 embodies simplicity without sacrificing essential features, making it an excellent choice for anyone needing a reliable mobile device. Its focus on fundamental mobile communication, combined with a user-friendly interface and solid build, ensures that it meets the needs of those who prefer a no-frills approach to mobile technology. Overall, the AT&T Z432 is a testament to how effective a basic phone can still be in a fast-paced, technology-driven world.
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