Table of Contents

For Your Safety

7

Your Phone

12

Phone Components

12

Your Phone’s Features

13

Display Information

15

Getting Started

17

Installing the SmartChip

17

Charging the Battery

18

Turning Your Phone On and Off

19

Access Codes

20

General Functions

21

Making a Call

21

Making a Call by Send Key

21

Making International Calls

21

Ending a Call

21

Making a Call From the Contacts

21

Adjusting the Volume

22

Answering a Call

22

Vibrate Mode (Quick)

22

Signal Strength

22

Entering Text

22

Selecting Functions and Options

26

In-Call Menu

27

During a Call

27

Making a Second Call

27

Swapping Between Two Calls

27

Answering an Incoming Call

27

Rejecting an Incoming Call

27

Muting the Microphone

28

Using the Speakerphone

28

2

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AT&T CU405 manual Table of Contents

CU405 specifications

The AT&T CU405 is a feature-rich mobile device designed to cater to a wide range of users, from beginners to more experienced smartphone enthusiasts. Positioned as a budget-friendly option, it incorporates a blend of practicality and essential technology that meets everyday communication needs.

At its core, the CU405 is built on a 4G LTE network, ensuring fast and reliable connectivity. This allows users to stream videos, browse the web, and engage in social media with minimal interruptions. The device is equipped with a 5-inch display, providing a clear and vibrant viewing experience. This size strikes a balance between usability and portability, making it comfortable to hold in one hand while still offering sufficient screen real estate for various applications.

One of the standout features of the CU405 is its impressive battery life. With a robust capacity, it ensures users can go through their day without constantly searching for an outlet. This is complemented by efficient power management features which help extend the battery's longevity even further.

The CU405 runs on Android, offering access to countless applications through the Google Play Store. This allows for the customization of the device according to personal preferences and needs. Users can download productivity apps, games, social media platforms, and more, making the CU405 a versatile companion.

In terms of imaging capabilities, the AT&T CU405 features a rear-facing camera that captures sharp photos and videos. While it may not boast the advanced photography features of high-end smartphones, it is perfectly suited for casual snapshots and video calling. Additionally, the front-facing camera enables users to engage in video chats with friends and family, enhancing connectivity.

Security is also prioritized in the CU405, featuring built-in protection mechanisms including options for secure lock screening and data encryption. This contributes to user peace of mind, knowing that personal information is safeguarded.

Overall, the AT&T CU405 is a solid choice for anyone seeking an affordable smartphone without sacrificing essential features. With its balance of performance, user-friendly design, and reliable connectivity, the CU405 stands out as a practical option for today’s mobile lifestyle.