6At the Re-enter New SIM PIN Code screen, re-enter the new SIM PIN to confirm.

7Press A under Ok.

Turning the PIN Requirement On and Off

When the SIM PIN requirement is on, you are prompted to enter your PIN each time you turn on your phone.

Note: If a SIM PIN is required, your phone will not function until the SIM PIN is entered, except for making emergency phone calls.

When the PIN requirement is off, your phone can be used without entering a PIN.

Important: When the SIM PIN requirement is off, the personal data on your SIM card is not protected. Anyone can use your phone and access your personal data.

1From the main menu, select Settings > Security > SIM PIN.

2Select On or Off.

3Enter the current SIM PIN.

4Press A under Ok.

SIM Card Security

Unblocking the PIN

If you enter your PIN incorrectly 3 times, your SIM card is blocked. To unblock your SIM card, you must contact your service provider to get a PIN Unblock Code (PUK).

Important: If you unsuccessfully enter the PUK code 10 times, your SIM card is permanently blocked and must be replaced. If this happens, all data is lost. You will get a message to contact your service provider. Except for making emergency phone calls, your phone will not function with a blocked SIM card.

To unblock the PIN:

1Press * # m 1.

2At your service provider representative’s request, provide the information needed to give you a PUK code.

3Select Unblock PIN.

4Enter the PUK code.

5Enter a new 4 to 8-digit SIM PIN.

6Re-enter your SIM PIN.

If you entered the codes properly, SIM Unlocked appears on the display.

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Motorola NNTN5837A manual Turning the PIN Requirement On and Off, Unblocking the PIN, SIM Card Security, Select Unblock PIN

NNTN5837A specifications

The Motorola NNTN5837A is an advanced battery accessory designed specifically for Motorola two-way radios, including the popular XPR series. This battery pack is engineered to deliver outstanding performance, longevity, and reliability, making it an essential component for professional users in fields such as public safety, telecommunications, and event management.

One of the main features of the NNTN5837A is its high capacity, providing 3500 mAh of power. This ensures that users can rely on their devices for extended periods without the need for frequent recharging. The battery's high capacity is particularly beneficial for users who are often in the field, where access to charging facilities may be limited.

The NNTN5837A utilizes Lithium-ion technology, known for its superior energy density and lightweight characteristics. Unlike traditional nickel-based batteries, Lithium-ion batteries have a lower self-discharge rate, allowing them to retain charge for longer periods when not in use. This feature is crucial for emergency responders and other professionals who need to ensure their equipment is always ready when needed.

Another significant characteristic of the NNTN5837A is its rugged design, which meets the rigorous standards for durability in challenging environments. It is built to withstand extreme temperatures, humidity, and mechanical stress, making it suitable for use in various industries, including construction and public safety.

Additionally, the NNTN5837A incorporates advanced safety features to prevent overheating, overcharging, and short-circuiting. This emphasis on safety ensures that users can operate their two-way radios with confidence, minimizing the risk of battery-related incidents during critical operations.

In terms of compatibility, the NNTN5837A is designed to work seamlessly with several Motorola models, including the XPR 7000 and 6000 series. This compatibility ensures that users can easily integrate the battery into their existing setups without the need for additional modifications.

Overall, the Motorola NNTN5837A battery pack stands out as a reliable and robust power solution for professionals who depend on their two-way radios. With its impressive capacity, advanced Lithium-ion technology, and rugged build, it provides the performance and safety features necessary for demanding applications. Whether used in emergency services, event communications, or industrial environments, the NNTN5837A is a vital accessory that enhances the functionality and reliability of Motorola's communication devices.