Samsung SM-T638U User manual

www.samsung.com

USER MANUAL

English (USA). 03/2023. Rev.1.0

SM-T630

SM-T638U

Table of Contents

Getting started

5 Device layout and functions

8 Charging the battery

12 SIM or USIM card

13 microSD card

15 Protective case

17 Turning the device on and off

17 Initial setup

Apps and features

18 Introduction

19 Samsung account

20 Understanding the screen

26 Notification panel

28 Entering text

30 Installing or uninstalling apps

32 Phone

35 Contacts

37 Messages

39 Internet

40 Multi window

42 Bixby

44 Bixby Vision

45 Samsung Kids

46 Samsung Members

46 Samsung Global Goals

46 Galaxy Shop

47 Calendar

48 Reminder

49 My Files

49 Clock

49 Calculator

50 SmartThings

50 Smart View

51 Music Share

53 Samsung Flow

54 Daily Board

56 Samsung DeX

62 Google apps

63 S Pen

73 Samsung Notes

77 PENUP

78 Camera

88 Gallery

92 Voice Recorder

92 Sharing content

94 Screen capture and screen record

96 Transferring data from your previous

device (Smart Switch)

Settings

98 Introduction

99 Samsung account

Table of Contents

130 Advanced features

131 Motions and gestures

132 Dual Messenger

133 Digital Wellbeing and parental

controls

133 Battery and device care

133 Optimizing your device

134 Battery

134 Storage

134 Memory

134 Device protection

135 Auto optimization

135 Software update

135 Diagnostics

135 Maintenance mode

135 Apps

136 General management

137 Accessibility

138 Software update

138 Remote support

139 About tablet

Usage notices

141 Precautions for using the device

143 Notes on package contents and

accessories

144 Maintaining water and dust resistance

145 Device overheating situations and

solutions

Appendix

149 Troubleshooting

99 Connections

100 Wi-Fi

102 Bluetooth

103 NFC and contactless payments

105 Data saver (Mobile network

enabled models)

105 Mobile data only apps (Mobile

network enabled models)

106 Mobile Hotspot (Mobile network

enabled models)

106 More connection settings

108 Connected devices

109 Modes and Routines

109 Using modes

109 Using routines

110 Sounds and vibration

111 Sound quality and effects

111 Separate app sound

112 Notifications

112 Display

113 Wallpaper and style

113 Home screen

113 Lock screen

114 Smart Lock

114 Security and privacy

115 Face recognition

117 Fingerprint recognition

120 Samsung Pass

122 Secure Folder

125 Secure Wi-Fi

126 Location

126 Safety and emergency

127 Accounts and backup

128 Users

129 Samsung Cloud

130 Google

Getting started

Device layout and functions

Multipurpose jack (USB

Type-C)

Side key

Speaker

Keyboard dock port

Touchscreen

Volume key

Active key

Microphone

Earphone jack

Light sensor

Front camera

Home key (Fingerprint

recognition sensor)

Back key

Recents key

Speaker

Back cover NFC antenna

Rear camera

Main antenna

(SM-T638U)

Flash

GPS antenna

Getting started

The device and some accessories (sold separately) contain magnets. The American

Heart Association (US) and the Medicines and Healthcare Products Regulatory Agency

(UK) both warn that magnets can affect the operation of implanted pacemakers,

cardioverters, defibrillators, insulin pumps or other electro medical devices (collectively,

“Medical Device”) within the range of 15 cm (6 inches). If you are a user of any of

these Medical Devices, DO NOT USE THIS DEVICE AND SOME ACCESSORIES (SOLD

SEPARATELY) UNLESS YOU HAVE CONSULTED WITH YOUR PHYSICIAN.

•

Do not store your device and some accessories (sold separately) near magnetic fields.

Magnetic stripe cards, including credit cards, phone cards, passbooks, and boarding

passes, may be damaged by magnetic fields.

•

When using the speakers, such as when playing media files or using speakerphone,

do not place the device close to your ears.

•

Be careful not to expose the camera lens to a strong light source, such as direct

sunlight. If the camera lens is exposed to a strong light source, such as direct sunlight,

the camera image sensor may be damaged. A damaged image sensor is irreparable

and will cause dots or spots in pictures.

•

If you use the device with its glass or acrylic body broken, there may be a risk of

injury. Use the device only after it has been repaired at a Samsung Service Center.

•

If dust or foreign materials enter the microphone, speaker, or receiver, the device’s

sound may become quiet or certain features may not work. If you attempt to remove

the dust or foreign materials with a sharp object, the device may be damaged and its

appearance may be affected.

•

Connectivity problems and battery drain may occur in the following situations:

–

If you attach metallic stickers on the antenna area of the device

–

If you attach a device cover made with metallic material to the device

–

If you cover the device’s antenna area with your hands or other objects while

using certain features, such as calls or the mobile data connection

•

If the area around the rear camera is covered with accessories, such as a screen

protector or stickers, unwanted noises may occur during calls or media playback.

•

Do not cover the light sensor area with accessories, such as stickers or a cover. Doing

so may cause the sensor to malfunction.

Getting started

Hard keys

Key Function

Side key

•

When the device is off, press and hold to turn it on.

•

Press to turn on or lock the screen.

•

Press and hold to start a conversation with Bixby. Refer to Using

Bixby for more information.

•

Press twice or press and hold to launch the app or feature you set.

Side key +

Volume Down key

•

Press simultaneously to capture a screenshot.

•

Press and hold simultaneously to turn off the device.

Active key

•

Press or press and hold to launch preset apps.

Recents key

•

Press to open the list of recent apps.

Home key

•

Press to turn on the screen while the screen is locked.

•

Press to return to the Home screen.

•

Press and hold to launch

Google Assistant

app.

Back key

•

Press to return to the previous screen.

Setting the Side key

Select an app or feature to launch by pressing the Side key twice or pressing and holding the

Side key.

Launch the

Settings

app, tap

Advanced features

→

Side key

, and then select an option you

want.

Setting the Active key

Select an app to launch by pressing or pressing and holding the Active key.

Launch the

Settings

app, tap

Advanced features

→

Active key

, and then select an option

you want.

Getting started

Charging the battery

Charge the battery before using it for the first time or when it has been unused for extended

periods.

Installing the battery

1 Remove the back cover.

Be careful not to damage your fingernails when you remove the back cover.

Do not bend or twist the back cover excessively. Doing so may damage the cover.

2 Insert the battery with the battery’s gold-colored contacts properly aligned with the

device’s contacts.

Getting started

3 Replace the back cover.

Align

Press

Ensure that the back cover is closed tightly to prevent water and dust from entering

the device. Open or loose back cover may allow water and dust to enter the device and

cause damage.

For the best performance, use only Samsung-approved back covers.

Removing the battery

1 Remove the back cover.

2 Pull out the battery.

Getting started

Wired charging

Connect the USB cable to the USB power adaptor and plug the USB Type-C cable into the

device’s multipurpose jack to charge the battery. After fully charging, disconnect the charger

from the device.

Do not remove the battery before removing the charger. This may damage the device.

Quick charging

Launch the

Settings

app, tap

Battery and device care

→

Battery

→

More battery settings

and then activate the feature you want.

•

Fast charging

: To use the fast charging feature, use a Samsung-approved battery charger

that supports Adaptive Fast Charging.

You can charge the battery more quickly while the device or its screen is turned off.

Reducing the battery consumption

Your device provides various options that help you conserve battery power.

•

Optimize the device using the device care feature.

•

When you are not using the device, turn off the screen by pressing the Side key.

•

Activate power saving mode.

•

Close unnecessary apps.

•

Deactivate the Bluetooth feature when not in use.

•

Deactivate auto-syncing of apps that need to be synced.

•

Decrease the backlight time.

•

Decrease the screen brightness.

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