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Samsung SM-J720FZVDKSA manual Calls are not connected, Your battery is low. Charge the battery

Models: SM-J720FZDDKSA SM-J720FZKDKSA SM-J720FZVDKSA

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Appendix

Calls are not connected

•Ensure that you have accessed the right cellular network.

•Ensure that you have not set call barring for the phone number you are dialling.

•Ensure that you have not set call barring for the incoming phone number.

Others cannot hear you speaking on a call

•Ensure that you are not covering the built-in microphone.

•Ensure that the microphone is close to your mouth.

•If using an earphone, ensure that it is properly connected.

Sound echoes during a call

Adjust the volume by pressing the Volume key or move to another area.

A cellular network or the Internet is often disconnected or audio quality is poor

•Ensure that you are not blocking the device’s internal antenna.

•When you are in areas with weak signals or poor reception, you may lose reception. You may have connectivity problems due to issues with the service provider’s base station. Move to another area and try again.

•When using the device while moving, wireless network services may be disabled due to issues with the service provider’s network.

The battery icon is empty

Your battery is low. Charge the battery.

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Samsung SM-J720FZVDKSA, SM-J720FZKDKSA, SM-J720FZDDKSA Calls are not connected, Your battery is low. Charge the battery

Contents

English /2018. Rev.1.0 Table of Contents Settings Appendix Read me first Basics Basics Instructional icons When the device heats up while charging the battery Device overheating situations and solutionsWhen the device heats up during use Do the following when the device heats up Keep the device updated with the latest software Precautions for operating environment Device limitations when the device overheats Device layout and functions Package contents Device layout Keys Installing the battery Battery Replace the back cover Removing the batteryRemove the back cover Pull out the battery Charging the battery Reducing the battery consumption Battery charging tips and precautions Use only a microSIM card Installing the SIM or Usim cardSIM or Usim card microSIM card Basics Single SIM models Dual SIM models Removing the SIM or Usim card Setting preferred SIM or Usim cards Using dual SIM or Usim cards dual SIM modelsActivating SIM or Usim cards Customising SIM or Usim cards Memory card microSD card Installing a memory card → SD card →UNMOUNT Removing the memory card Activating emergency mode Emergency modeTurning the device on and off Formatting the memory card Deactivating emergency mode Initial setup Basics Introduction Samsung accountRegistering your Samsung account Registering a new Samsung account Tap Samsung account → →Remove account Enter your email address and password, and then tap SignTransferring data from your previous device Transferring data wirelessly via Wi-Fi Direct Smart Switch Viewing imported data Transferring backup data from a computerOn the computer, launch Smart Switch Backing up data Samsung Cloud Restoring data Tap →Settings →Sync settingsSyncing data Checking data Controlling the touchscreen Understanding the screenTapping Tapping and holding Double-tapping DraggingSwiping Spreading and pinching Home screen and Apps screen Switching between Home and Apps screens Creating folders Moving itemsAdding more apps Moving apps from a folder Deleting a folder Editing the Home screen Icon Meaning Indicator iconsDisplaying all apps on the Home screen Lock screen Screen capture Capture a screenshot while using the deviceChanging the screen lock method Capturing a screenshot Notification panel Access the notification settings Launch Settings Using quick setting buttons Keyboard layout Entering textChanging the input language Changing the keyboard layout Copying and pasting Additional keyboard functions Tap and hold over a word that you want to look up Dictionary Installing apps Installing or uninstalling appsGalaxy Apps Play Store Setting app permissions Uninstalling apps and using app sleep modeManaging apps Enabling apps Starting Bixby Bixby Opening Bixby Home Bixby HomeBixby Home screen will appear To close Bixby Home, swipe to the left on the screen Using recommended content on Bixby Home Editing Bixby cards list Viewing Bixby cardsSelecting apps to show as Bixby cards →Unpin Starting Reminder ReminderTap GET Started on the Upcoming Reminders card Reminder intro page will appear Creating reminders via the Reminder app Creating reminders Viewing the reminders list Checking reminder notificationsCreating reminders from Bixby Home Creating reminders while browsing the Internet Completing reminders Setting reminder detailsRestoring reminders Edit Deleting reminders Customising Bixby settingsCards Select apps to show as cards on the Bixby Home screen About Bixby View the Bixby version and legal information Make or answer voice and video calls PhoneMaking calls Making calls from call logs or contacts list Using speed dialMaking calls from the locked screen Making an international call Blocking phone numbers Receiving callsAnswering a call Rejecting a call During a video call Options during callsDuring a voice call Adding a phone number to Contacts from the calls list Adding a phone number to ContactAdding a phone number to Contacts from the keypad Adding contacts ContactsCreating a new contact Create new contacts or manage contacts on the device Synching contacts with your web accounts Searching for contactsImporting contacts Saving and sharing profile Sharing contacts Merging duplicate contacts Creating groupsDeleting contacts Sending a group message Sending messages MessagesSend and view messages by conversation Tap Setting a message reminder Setting the message notificationViewing messages Blocking unwanted messages Browsing webpages Internet Activating secret mode Using secret modeChanging security settings Deactivating secret mode Sending emails Setting up email accountsReading emails Tap Send to send the mail Camera etiquette Camera Launching Camera Using swipe gestures Taking photos or recording videos Basic shooting Locking the focus AF and exposure AE This feature is available only in Auto and Pro modesZooming in and out Live Focus Editing the Live Focus photos To save the photo Applying stickers randomly More fun with live stickers Auto mode Using shooting modesPro mode Available options Take a series of photos of moving subjects Panorama modeContinuous shot mode Sports mode HDR Rich tone modeNight mode Applying beauty effects Sound & shot modeSelfie mode Using the Selfie focus feature Wide selfie mode Options for current shooting mode Customising camera settings Rear Camera Camera settings Common Select an image GalleryViewing images Viewing videos Searching for images Viewing stories Viewing albumsCreating stories Deleting stories Deleting images or videos Syncing images and videos with Samsung CloudDeleting an image or a video Deleting multiple images and videos Multi window Split screen view Adjusting the window size Using additional options Sharing text or images between windows Minimising the split screen view Pop-up view Samsung Pay miniMoving pop-up windows Here for pop-up view Samsung Members Samsung Notes When you are finished composing the note, tap SaveCreating notes Deleting notes Tap Save to save the event CalendarCreating events Creating tasks Samsung HealthSyncing events and tasks with your accounts Starting Samsung Health Monitor your health and fitness Using Samsung Health Steps Together Additional information Tap to finish recording Enter a file name and tap Save Voice Recorder Stopping alarms Setting alarmsLaunch the Clock app and tap Alarm My Files Creating clocks Deleting alarmsDeleting clocks Launch the Clock app and tap World Clock Calculator Timer Listening to the FM radio RadioPlaying through the speaker Launch the Radio app Scanning radio stations Game Launcher Changing the performance mode Using Game LauncherYou can change the game performance mode Removing a game from Game Launcher Blocking notifications during games Using Game Tools Dual Messenger Uninstalling a second app SmartThings Connecting to nearby devices Registering devices Using home appliances, TVs, and IoT productsViewing and controlling registered devices Adding devices and scenes by locations Adding locations Adding automationsAdding devices to a location Adding scenes Using additional features Sharing content Google apps Photos YouTubeGoogle Duo Options IntroductionConnections Connecting to a Wi-Fi network Wi-FiMobile networks Configure your mobile network settings Select a network from the Wi-Fi networks list Tap Wi-Fi Direct Wi-Fi DirectOn the Settings screen, tap Connections →Wi-Fi Sending and receiving data Pairing with other Bluetooth devices Bluetooth Sending and receiving data Unpairing Bluetooth devicesTap next to the device name to unpair Tap Unpair Mobile Hotspot and Tethering Data saver SIM card manager dual SIM models Using the mobile hotspot Customise settings to control other features More connection settingsPrinting Adding printer plug-ins Sounds and vibration Printing contentDevice Select a printer to add Display Notifications Changing the screen mode Changing the screen mode or adjusting the display colour Screen tone screen will be adjusted Adjusting the screen tone by colour valueOptimising the full screen colour balance Tick Advanced options Select an option Wallpapers and themesScreensaver Advanced features Using the quick optimisation feature Device maintenance Power saving mode BatteryManaging the battery Storage Device security MemoryUltra data saving Managing the memory Apps Lock screen Smart Lock Biometrics and security 138 Registering your face Face recognition Unlocking the screen with face recognition Fingerprint recognition Registering fingerprints For better fingerprint recognition Tap Edit Tick fingerprints to delete and tap Remove Deleting fingerprintsYou can delete registered fingerprints Unlocking the screen with fingerprints Using Samsung PassUsing fingerprints with Samsung Pay mini Registering Samsung Pass Samsung Pass Using Samsung Pass to sign in to apps Verifying the Samsung account passwordUsing Samsung Pass to sign in to websites Deleting your Samsung Pass data Using Samsung Pass with websites and appsManaging sign-in information Secure Folder Tap →Settings →Delete data Setting auto lock for Secure Folder Setting up Secure Folder Adding apps Moving content to Secure FolderMoving content from Secure Folder Hiding Secure Folder Adding accountsBacking up and restoring Secure Folder Removing apps from Secure Folder Tap Back up Secure Folder data Uninstalling Secure FolderRestoring data Cloud and accounts Using a Samsung account Backup and restoreUsing a Google account Google Accessibility Adding device languages General managementYou can add languages to use on your device → Add language Website supports only some languages Software updateSecurity updates information About phone Appendix Troubleshooting Forcing restart Resetting the deviceRestarting the device Calls are not connected Your battery is low. Charge the battery Ensure that the charger is connected properly Charge the battery Error messages appear when opening multimedia files Your device cannot find your current location Ensure that you are connected to a network properly Samsung Cloud does not work About Hevc Advance CopyrightTrademarks