Samsung SM-T307U User manual

www.samsung.com

USER MANUAL

English. 07/2021. Rev.1.0

SM-T307U

Table of Contents

Basics

4 Read me first

6 Device overheating situations and

solutions

9 Device layout and functions

12 Charging the battery

15 SIM or USIM card (nano-SIM card)

16 Memory card (microSD card)

18 Turning the device on and off

19 Initial setup

19 Samsung account

20 Transferring data from your previous

device (Smart Switch)

22 Understanding the screen

30 Notification panel

32 Entering text

Apps and features

34 Installing or uninstalling apps

36 Phone

38 Contacts

40 Messages

41 Internet

42 Camera

51 Gallery

55 Multi window

57 Samsung Notes

58 Samsung Members

58 Samsung Kids

59 Samsung Flow

60 Samsung Global Goals

60 Calendar

61 Reminder

62 My Files

62 Clock

62 Calculator

63 SmartThings

63 Sharing content

64 Smart View

65 Daily Board

67 Google apps

Table of Contents

90 Battery and device care

90 Optimizing your device

90 Battery

91 Storage

91 Memory

91 Device protection

91 Apps

92 General management

93 Accessibility

93 Software update

94 About tablet

Appendix

95 Troubleshooting

100 Removing the battery

Health and Safety

Settings

68 Introduction

68 Samsung account

68 Connections

69 Wi-Fi

70 Bluetooth

72 Data saver

72 Mobile data only apps

72 Mobile Hotspot

73 More connection settings

74 Sound

75 Sound quality and effects

75 Separate app sound

76 Notifications

76 Display

77 Wallpaper

77 Home screen

77 Lock screen

78 Smart Lock

78 Biometrics and security

79 Face recognition

81 Secure Folder

84 Privacy

84 Location

84 Google

85 Accounts and backup

86 Users

87 Samsung Cloud

88 Advanced features

89 Motions and gestures

89 Digital Wellbeing and parental

controls

Basics

Read me first

Please read this manual before using the device to ensure safe and proper use.

•

Descriptions are based on the device’s default settings.

•

Some content may differ from your device depending on the region, service provider,

model specifications, or device’s software.

•

The device may require a connection to a Wi-Fi or mobile network when using some apps

or features.

•

Content (high quality content) that requires high CPU and RAM usage will affect the

overall performance of the device. Apps related to the content may not work properly

depending on the device’s specifications and the environment that it is used in.

•

Samsung is not liable for performance issues caused by apps supplied by providers other

than Samsung.

•

Samsung is not liable for performance issues or incompatibilities caused by edited

registry settings or modified operating system software. Attempting to customize the

operating system may cause the device or apps to work improperly.

•

Software, sound sources, wallpapers, images, and other media provided with this device

are licensed for limited use. Extracting and using these materials for commercial or other

purposes is an infringement of copyright laws. Users are entirely responsible for illegal

use of media.

•

You may incur additional charges for data services, such as messaging, uploading and

downloading, auto-syncing, or using location services depending on your data plan. For

large data transfers, it is recommended to use the Wi-Fi feature.

•

Default apps that come with the device are subject to updates and may no longer be

supported without prior notice. If you have questions about an app provided with

the device, contact a Samsung Service Centre. For user-installed apps, contact service

providers.

•

Modifying the device’s operating system or installing software from unofficial sources

may result in device malfunctions and data corruption or loss. These actions are violations

of your Samsung licence agreement and will void your warranty.

Basics

•

Depending on the region or service provider, a screen protector is attached for protection

during production and distribution. Damage to the attached screen protector is not

covered by the warranty.

•

You can see the touchscreen clearly even in strong outdoor sunlight by automatically

adjusting the contrast range based on the surrounding environment. Due to the nature

of the product, displaying fixed graphics for extended periods may result in afterimages

(screen burn-in) or ghosting.

–

It is recommended not to use fixed graphics on part or all of the touchscreen for

extended periods and turn off the touchscreen when not using the device.

–

You can set the touchscreen to turn off automatically when you are not using it.

Launch the

Settings

app, tap

Display

→

Screen timeout

, and then select the length

of time you want the device to wait before turning off the touchscreen.

•

The use of mobile devices on airplanes or ships may be subject to federal and local

guidelines and restrictions. Check with the appropriate authorities and always follow

crew instructions regarding when and how you may use your device.

•

Your device contains magnets. Keep a safe distance between your device and objects

that may be affected by magnets such as credit cards and implantable medical devices. If

you have an implantable medical device, consult your physician before use.

Instructional icons

Warning: situations that could cause injury to yourself or others

Caution: situations that could cause damage to your device or other equipment

Notice: notes, usage tips, or additional information

Basics

Device overheating situations and solutions

When the device heats up while charging the battery

While charging, the device and the charger may become hot. During wireless charging or fast

charging, the device may feel hotter to the touch. This does not affect the device’s lifespan or

performance and is in the device’s normal range of operation. If the battery becomes too hot,

the charging speed may decrease or the charger may stop charging.

Do the following when the device heats up:

•

Disconnect the charger from the device and close any running apps. Wait for the

device to cool down and then begin charging the device again.

•

If the lower part of the device overheats, it could be because the connected USB

cable is damaged. Replace the damaged USB cable with a new Samsung-approved

one.

•

When using a wireless charger, do not place foreign materials, such as metal objects,

magnets, and magnetic stripe cards, between the device and the wireless charger.

The wireless charging or fast charging feature is only available on supported models.

When the device heats up during use

When you use features or apps that require more power or use them for extended periods,

your device may temporarily heat up due to increased battery consumption. Close any

running apps and do not use the device for a while.

The following are examples of situations in which the device may overheat. Depending on

the functions and apps you use, these examples may not apply to your model.

•

During the initial setup after purchase or when restoring data

•

When downloading large files

•

When using apps that require more power or using apps for extended periods

–

When playing high-quality games for extended periods

–

When recording videos for extended periods

–

When streaming videos while using the maximum brightness setting

–

When connecting to a TV

Basics

•

While multitasking (or, when running many apps in the background)

–

When using Multi window

–

When updating or installing apps while recording videos

–

When downloading large files during a video call

–

When recording videos while using a navigation app

•

When using large amount of data for syncing with the cloud, email, or other accounts

•

When using a navigation app in a car while the device is placed in direct sunlight

•

When using the mobile hotspot and tethering feature

•

When using the device in areas with weak signals or no reception

•

When charging the battery with a damaged USB cable

•

When the device’s multipurpose jack is damaged or exposed to foreign materials, such as

liquid, dust, metal powder, and pencil lead

•

When you are roaming

Do the following when the device heats up:

•

Keep the device updated with the latest software.

•

Conflicts between running apps may cause the device to heat up. Restart the device.

•

Deactivate the Wi-Fi, GPS, and Bluetooth features when not using them.

•

Close apps that increase battery consumption or that run in the background when

not in use.

•

Delete unnecessary files or unused apps.

•

Decrease the screen brightness.

•

If the device overheats or feels hot for a prolonged period, do not use it for a while. If

the device continues to overheat, contact a Samsung Service Centre.

Basics

Precautions for device overheating

If you begin to feel uncomfortable due to the device overheating, stop using the device.

When the device heats up, the features and performance may be limited or the device may

turn off to cool down. The feature is only available on supported models.

•

If the device overheats and reaches a certain temperature, a warning message will appear

to prevent device failure, skin irritations and damages, and battery leakage. To lower the

device’s temperature, the screen brightness and the performance speed will be limited

and battery charging will stop. Running apps will be closed and all calling and other

features will be limited, except for emergency calls, until the device cools down.

•

If a second message appears due to a further increase of the device’s temperature, the

device will turn off. Do not use the device until the device’s temperature drops below the

specified level. If the second warning message appears during an emergency call, the call

will not be disconnected by a forced shut down.

Precautions for operating environment

Your device may heat up due to the environment in the following conditions. Use caution to

avoid shortening the battery’s lifespan, damaging the device, or causing a fire.

•

Do not store your device in very cold or very hot temperatures.

•

Do not expose your device to direct sunlight for extended periods.

•

Do not use or store your device for extended periods in very hot areas, such as inside a

car in the summer.

•

Do not place the device in any areas that may overheat, such as on an electric heating

mat.

•

Do not store your device near or in heaters, microwaves, hot cooking equipment, or high

pressure containers.

•

Do not use a cable whose covering is peeled off or damaged, and do not use any charger

or battery that is damaged or malfunctioning.

Basics

Device layout and functions

Package contents

•

The items supplied with the device and any available accessories may vary

depending on the region or service provider.

•

The supplied items are designed only for this device and may not be compatible with

other devices.

•

Appearances and specifications are subject to change without prior notice.

•

You can purchase additional accessories from your local Samsung retailer. Make sure

they are compatible with the device before purchase.

•

Use only Samsung-approved accessories. Using unapproved accessories may cause

the performance problems and malfunctions that are not covered by the warranty.

•

Availability of all accessories is subject to change depending entirely on

manufacturing companies. For more information about available accessories, refer to

the Samsung website.

•

Earphones (USB Type-C) that support digital output can be used with the device.

However, the device may not be compatible with earphones that use a different

audio output method or were made by a different manufacturer.

Basics

Device layout

Microphone

Front camera

Side key

Volume key

Multipurpose jack (USB

Type-C)

Touchscreen

Earphone jack

SIM card /

Memory card tray

Main antenna

Speaker

GPS antenna

Rear camera

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