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Samsung SM-G991U1 User Manual

Samsung SM-G991U1
179 pages
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www.samsung.com
USER MANUAL
English (LTN). 11/2021. Rev.1.0
SM-G991B
SM-G991B/DS
SM-G991U1
SM-G996B
SM-G996B/DS
SM-G996U1
SM-G998B
SM-G998B/DS
SM-G998U1

Table of Contents

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Samsung SM-G991U1 Specifications

General IconGeneral
ModelSM-G991U1
Network TechnologyGSM / CDMA / HSPA / EVDO / LTE / 5G
Launch Date2021, January 14
Dimensions151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in)
BuildGlass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Display TypeDynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
Display Size6.2 inches, 94.1 cm2 (~87.2% screen-to-body ratio)
ProtectionCorning Gorilla Glass Victus
OSAndroid 11, upgradable to Android 13, One UI 5
ChipsetQualcomm SM8350 Snapdragon 888 5G (5 nm)
CPUOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPUAdreno 660
Internal Memory128GB 8GB RAM, 256GB 8GB RAM
Main Camera12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, Dual Pixel PDAF, OIS
Telephoto Camera64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom
Main Camera FeaturesLED flash, auto-HDR, panorama
Main Camera Video8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
Selfie Camera FeaturesDual video call, Auto-HDR
Selfie Camera Video4K@30/60fps, 1080p@30fps
LoudspeakerYes, with stereo speakers
3.5mm jackNo
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
Bluetooth5.0, A2DP, LE
PositioningGPS, GLONASS, BDS, GALILEO
NFCYes
RadioNo
USBUSB Type-C 3.2, USB On-The-Go
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
BatteryLi-Ion 4000 mAh, non-removable
Water ResistanceIP68 dust/water resistant (up to 1.5m for 30 min)
RAM8GB
SIMNano-SIM and eSIM
Display Resolution1080 x 2400 pixels
Ultrawide Camera12 MP, f/2.2, 13mm (ultrawide)
Selfie Camera10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, Dual Pixel PDAF
Charging25W wired, PD3.0
Wireless Charging15W wireless (Qi/PMA)
Reverse Wireless Charging4.5W
ColorsPhantom Gray, Phantom White, Phantom Violet, Phantom Pink
Front Camera10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, Dual Pixel PDAF

Summary

Basics

Read me first

Important initial information for safe and proper device use.

Device overheating situations and solutions

Discusses device heating during charging and use, and provides solutions.

Device layout and functions

Details the physical layout and functions of the device.

Device layout

Illustrates the physical components and layout of the device.

Charging the battery

Instructions on how to charge the device's battery.

Wireless charging

Information and precautions for charging the device wirelessly.

Nano-SIM card and eSIM

Guide for inserting SIM/USIM cards and activating eSIM.

Turning the device on and off

Steps to power the device on, off, and force restart.

Initial setup

Instructions for setting up the device for the first time.

Fingerprint recognition

How to set up and use fingerprint unlock for device security.

Face recognition

Steps to set up and use face recognition for unlocking the device.

Camera

Introduction to taking pictures and recording videos with the device.

Taking pictures

Instructions for taking photos using the camera app and its modes.

Video mode

Guide to recording videos using different modes and settings.

Apps and features

Samsung account

Managing your Samsung account and related services for device integration.

Understanding the screen

Explains how to interact with the device's touchscreen using various gestures.

Navigation bar (soft buttons)

Details the on-screen navigation buttons and gesture options for device control.

Home screen and Apps screen

Managing the device's Home and Apps screens, including widgets and shortcuts.

Installing or uninstalling apps

Guide to managing apps via Galaxy Store, Play Store, and uninstalling/enabling.

Phone

Instructions for making and receiving calls, and managing call logs.

Contacts

Creating, importing, and managing contact information on the device.

Messages

Sending, viewing, and managing text messages and conversations.

Internet

Browsing the web, bookmarking pages, and using secret mode.

Multi window

Using split screen and pop-up view for multitasking with apps.

Bixby

Using Bixby for voice commands, assistance, and managing device functions.

Samsung Health

Managing wellness, fitness goals, and tracking health data.

S Pen (Galaxy S21 Ultra 5G)

Using S Pen features like Air Command for advanced device interaction.

Samsung Notes

Creating and managing notes with text, handwriting, and drawings.

Gallery

Viewing and managing images and videos, organizing albums, and creating stories.

Screen capture and screen record

Capturing screenshots and recording the device screen with various options.

Transferring data from your previous device (Smart Switch)

Using Smart Switch to transfer data from an old device to the new one.

Settings

Connections

Managing network connections like Wi-Fi, Bluetooth, and mobile data.

Wi-Fi

Connecting to Wi-Fi networks and managing network settings.

Bluetooth

Pairing and exchanging data with Bluetooth-enabled devices.

Sounds and vibration

Adjusting device sounds, ringtones, and vibration feedback.

Display

Customizing display settings like brightness, dark mode, and screen timeout.

Motion smoothness

Adjusting screen refresh rate for smoother animations and scrolling.

Lock screen

Customizing lock screen security, shortcuts, and appearance.

Smart Lock

Automatically unlocking the device based on trusted locations or devices.

Biometrics and security

Securing the device using face, fingerprint, and other security features.

Samsung Pass

Using biometric data for secure and easy sign-in to apps and websites.

Secure Folder

Creating a protected storage area for private content and apps.

Privacy

Managing privacy settings, app permissions, and data usage history.

Accounts and backup

Syncing, backing up, and restoring data via cloud services.

Advanced features

Activating and configuring advanced device functions and settings.

Motions and gestures

Using motion and gesture controls for device interaction and shortcuts.

Digital Wellbeing and parental controls

Monitoring device usage and setting parental controls for children.

Battery and device care

Managing device status, battery, storage, memory, and security.

Apps

Managing device applications, including settings and uninstallation.

Accessibility

Configuring settings to improve device usability for users with disabilities.

Software update

Updating device software and scheduling automatic updates.

Troubleshooting

Your device displays network or service error messages

Troubleshooting steps for network and service error messages.

Your device does not turn on

Steps to resolve issues when the device fails to power on.

The touchscreen responds slowly or improperly

Solutions for touchscreen unresponsiveness or slow performance issues.

Your device freezes or encounters a fatal error

Troubleshooting steps for device freezing or critical errors.

Calls are not connected

Steps to resolve issues with incoming or outgoing calls not connecting.

Bluetooth is not working well

Troubleshooting steps for Bluetooth connection and performance issues.

Your device cannot find your current location

Resolving issues where the device cannot find or lock onto the current location.

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