Documentation Set.............................................................................................................................................. 21

Configurations..................................................................................................................................................... 21

Chapter Descriptions........................................................................................................................................... 22

Notational Conventions.......................................................................................................................................22

Icon Conventions.................................................................................................................................................22

Related Documents..............................................................................................................................................23

Service Information.............................................................................................................................................23

Chapter 1: Getting Started....................................................................................25

TC55 Features..................................................................................................................................................... 25

Unpacking........................................................................................................................................................... 28

Setup....................................................................................................................................................................28

Installing the SIM Card........................................................................................................................... 28

Installing an Optional microSD Card......................................................................................................30

Installing the Battery............................................................................................................................... 32

Charging the Battery............................................................................................................................... 34

Replacing the 2,940 mAh Battery....................................................................................................................... 36

Replacing the 4,410 mAh Battery....................................................................................................................... 38

Replacing the microSD Card...............................................................................................................................40

Battery Management........................................................................................................................................... 42

Monitor Battery Usage............................................................................................................................ 42

Low Battery Notification.........................................................................................................................43

Battery Optimization............................................................................................................................... 44

Setting the Date and Time................................................................................................................................... 44

Display Setting.................................................................................................................................................... 45

Setting the Screen Brightness..................................................................................................................45

Setting Screen Rotation........................................................................................................................... 45

Setting Screen Timeout Setting...............................................................................................................46

Setting Font Size..................................................................................................................................... 46

Setting Touch Key Light......................................................................................................................... 46

Touch Mode............................................................................................................................................ 47

General Sound Setting.........................................................................................................................................48

Setting LED Notifications................................................................................................................................... 49

Chapter 2: Using the TC55....................................................................................51

Home Screen....................................................................................................................................................... 51

Charging the Main Battery.......................................................................................................... 34

Charging LED Status...................................................................................................................35

Charging Temperature.................................................................................................................35

Powering On the TC55................................................................................................................36

Turning Off the Radios................................................................................................................44

Contents | 7