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Samsung SM-J720F/DS SM-J720FZDDKSA, SM-J720FZKDKSA, SM-J720FZVDKSA Dual Messenger, Uninstalling a second app, DISABLE, UNINSTALL, Launch the Settings app and tap Advanced features →Dual Messenger

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Apps and features

Dual Messenger

Install the second app and use two separate accounts for the same messenger app.

Launch the Settings app and tap Advanced features →Dual Messenger.

Supported apps will appear.

Tap the switch of an app to install the second app.

The second app will be installed. The second app’s icon will be displayed with . When you receive notifications from the second app, the notifications will be displayed with to distinguish them from the first app’s notifications.

Second app

•The Dual Messenger feature may not be available depending on the app.

•Some features of the app may be limited for the second app.

Uninstalling a second app

Launch the Settings app and tap Advanced features →Dual Messenger.

Tap the switch of the app you want to disable and tap DISABLE or UNINSTALL. All data related to the second app will be deleted.

If you uninstall the first app, the second app will also be deleted.

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Contents

Page Table of Contents Settings Appendix Basics Read me first Instructional icons Device overheating situations and solutions When the device heats up while charging the battery Do the following when the device heats up: When the device heats up during use Page Device limitations when the device overheats Precautions for operating environment Device layout and functions Package contents Device layout Keys Battery Installing the battery Removing the battery Charging the battery Reducing the battery consumption Battery charging tips and precautions SIM or USIM card (microSIM card) Installing the SIM or USIM card Single SIM models Dual SIM models Removing the SIM or USIM card Using dual SIM or USIM cards (dual SIM models) Activating SIM or USIM cards Customising SIM or USIM cards Setting preferred SIM or USIM cards Memory card (microSD card) Installing a memory card Removing the memory card Formatting the memory card Turning the device on and off Emergency mode Activating emergency mode Deactivating emergency mode Initial setup AGREE No, thank you Samsung account Introduction Registering your Samsung account Registering a new Samsung account Registering an existing Samsung account Transferring data from your previous device Smart Switch Transferring data wirelessly via Wi-FiDirect Transferring backup data from a computer Viewing imported data Samsung Cloud Backing up data Restoring data Syncing data Checking data Understanding the screen Controlling the touchscreen Tapping Tapping and holding Dragging Double-tapping Swiping Spreading and pinching Home screen and Apps screen Switching between Home and Apps screens Moving items Creating folders Editing the Home screen Displaying all apps on the Home screen Indicator icons Lock screen Changing the screen lock method Screen capture Capturing a screenshot Notification panel Using quick setting buttons Entering text Keyboard layout Changing the input language Changing the keyboard layout Additional keyboard functions Copying and pasting Dictionary Apps and features Installing or uninstalling apps Galaxy Apps Installing apps Play Store Managing apps Uninstalling apps and using app sleep mode Enabling apps Setting app permissions Bixby Starting Bixby Bixby Home Opening Bixby Home Using recommended content on Bixby Home Viewing Bixby cards Editing Bixby cards list Selecting apps to show as Bixby cards Reminder Starting Reminder Creating reminders Creating reminders via the Reminder app Creating reminders from Bixby Home Creating reminders while browsing the Internet Checking reminder notifications Viewing the reminders list Setting reminder details Completing reminders Restoring reminders Deleting reminders Customising Bixby settings Phone Making calls Making calls from call logs or contacts list Using speed dial Making calls from the locked screen Making an international call Receiving calls Answering a call Rejecting a call Missed calls Blocking phone numbers Options during calls During a voice call During a video call Adding a phone number to Contact Adding a phone number to Contacts from the keypad Adding a phone number to Contacts from the calls list Contacts Adding contacts Creating a new contact Importing contacts Synching contacts with your web accounts Searching for contacts Sharing contacts Saving and sharing profile Creating groups Sending a group message Merging duplicate contacts Deleting contacts Messages Sending messages Viewing messages Blocking unwanted messages Setting the message notification Setting a message reminder Internet Browsing webpages Using secret mode Activating secret mode Changing security settings Deactivating secret mode Email Setting up email accounts Sending emails Reading emails Camera Launching Camera Using swipe gestures Basic shooting Taking photos or recording videos Zooming in and out Locking the focus (AF) and exposure (AE) LIVE FOCUS Taking portraits that stand out using the Live focus feature Editing the Live Focus photos ADJUST BACKGROUND BLUR More fun with live stickers Applying stickers randomly Using shooting modes Auto mode Pro mode Available options Panorama mode Continuous shot mode HDR (Rich tone) mode Night mode Sports mode Sound & shot mode Selfie mode Applying beauty effects Using the Selfie focus feature Wide selfie mode Customising camera settings Options for current shooting mode Camera settings COMMON Grid lines Location tags Review pictures Quick launch Gallery Viewing images Editing the Live focus photos Searching for images Viewing videos Viewing albums Viewing stories Creating stories Deleting stories Syncing images and videos with Samsung Cloud Deleting images or videos Deleting an image or a video Deleting multiple images and videos Multi window Split screen view Using additional options Adjusting the window size Minimising the split screen view Sharing text or images between windows Pop-upview Moving pop-upwindows Samsung Pay mini Samsung Members Samsung Notes Creating notes Deleting notes Calendar Creating events Creating tasks Syncing events and tasks with your accounts Samsung Health Starting Samsung Health Using Samsung Health TOGETHER Steps Additional information Voice Recorder My Files Clock ALARM Setting alarms Stopping alarms WORLD CLOCK Creating clocks Deleting clocks STOPWATCH TIMER Calculator Radio Listening to the FM radio Playing through the speaker Scanning radio stations Game Launcher Using Game Launcher Removing a game from Game Launcher Changing the performance mode Using Game Tools Blocking notifications during games Dual Messenger Uninstalling a second app SmartThings Connecting to nearby devices Using home appliances, TVs, and IoT products Registering devices Viewing and controlling registered devices Adding devices and scenes by locations Adding locations Adding automations Sharing content Using additional features Google apps Chrome Gmail Maps Play Music YouTube Photos Google Duo Settings Introduction Connections Options Wi-Fi Connecting to a Wi-Finetwork Wi-FiDirect Sending and receiving data Ending the device connection Bluetooth Pairing with other Bluetooth devices Sending and receiving data Unpairing Bluetooth devices Data saver Mobile Hotspot and Tethering Using the mobile hotspot SIM card manager (dual SIM models) More connection settings Printing Adding printer plug-ins Printing content Sounds and vibration Notifications Display Changing the screen mode Optimising the full screen colour balance Adjusting the screen tone by colour value Screensaver Wallpapers and themes Advanced features Device maintenance Using the quick optimisation feature Battery Power saving mode Managing the battery Storage Managing the memory Memory Device security Ultra data saving Apps Lock screen Smart Lock Biometrics and security Page Face recognition Registering your face Unlocking the screen with face recognition Fingerprint recognition For better fingerprint recognition Registering fingerprints Deleting fingerprints Using Samsung Pass Using fingerprints with Samsung Pay mini Unlocking the screen with fingerprints Samsung Pass Registering Samsung Pass Verifying the Samsung account password Using Samsung Pass to sign in to websites Using Samsung Pass to sign in to apps Managing sign-ininformation Using Samsung Pass with websites and apps Deleting your Samsung Pass data Secure Folder Setting up Secure Folder Setting auto lock for Secure Folder Moving content to Secure Folder Moving content from Secure Folder Adding apps Removing apps from Secure Folder Adding accounts Hiding Secure Folder Backing up and restoring Secure Folder Backing up data Restoring data Uninstalling Secure Folder Cloud and accounts Backup and restore Using a Samsung account Using a Google account Google Accessibility General management Adding device languages Software update Security updates information User manual About phone Appendix Troubleshooting Restarting the device Forcing restart Resetting the device Calls are not connected Others cannot hear you speaking on a call Sound echoes during a call The battery icon is empty The battery does not charge properly (For Samsung-approvedchargers) The battery depletes faster than when first purchased Error messages appear when launching the camera Photo quality is poorer than the preview Error messages appear when opening multimedia files Another Bluetooth device is not located A connection is not established when you connect the device to a computer Your device cannot find your current location Data stored in the device has been lost A small gap appears around the outside of the device case There is not enough space in the device’s storage The Apps button does not appear on the Home screen The screen brightness adjustment bar does not appear on the notification panel Show control on top Samsung Cloud does not work Copyright Trademarks About HEVC Advance