Device maintenance

Settings

The device maintenance feature provides an overview of the status of your device’s battery, storage, memory, and system security. You can also automatically optimise the device with a tap of your finger.

Battery

Storage

Ultra data saving

Device security

Memory

The device maintenance screen may appear differently depending on the region or service provider.

Using the quick optimisation feature

On the Settings screen, tap Device maintenance →FIX NOW or OPTIMISE NOW.

The quick optimisation feature improves device performance through the following actions.

•Clearing some memory.

•Deleting unnecessary files and closing apps running in the background.

•Managing abnormal battery usage.

•Scanning for crashed apps and malware.

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Samsung SM-J720FZKDKSA, SM-J720FZDDKSA, SM-J720FZVDKSA manual Device maintenance, Using the quick optimisation feature

Contents

English /2018. Rev.1.0 Table of Contents Settings Appendix Basics Read me first Instructional icons Basics Device overheating situations and solutions When the device heats up while charging the batteryWhen the device heats up during use Do the following when the device heats up Keep the device updated with the latest software Device limitations when the device overheats Precautions for operating environment Package contents Device layout and functions Device layout Keys Battery Installing the battery Removing the battery Remove the back cover Pull out the batteryReplace the back cover Charging the battery Battery charging tips and precautions Reducing the battery consumption Installing the SIM or Usim card SIM or Usim card microSIM cardUse only a microSIM card Basics Removing the SIM or Usim card Single SIM models Dual SIM models Using dual SIM or Usim cards dual SIM models Setting preferred SIM or Usim cardsActivating SIM or Usim cards Customising SIM or Usim cards Installing a memory card Memory card microSD card Removing the memory card → SD card →UNMOUNT Emergency mode Activating emergency modeTurning the device on and off Formatting the memory card Initial setup Deactivating emergency mode Basics Samsung account IntroductionRegistering your Samsung account Registering a new Samsung account Enter your email address and password, and then tap Sign Transferring data from your previous deviceTap Samsung account → →Remove account Smart Switch Transferring data wirelessly via Wi-Fi Direct Transferring backup data from a computer On the computer, launch Smart SwitchViewing imported data Samsung Cloud Backing up data Tap →Settings →Sync settings Restoring dataSyncing data Checking data Understanding the screen Controlling the touchscreenTapping Tapping and holding Dragging Double-tappingSwiping Spreading and pinching Home screen and Apps screen Switching between Home and Apps screens Moving items Creating foldersAdding more apps Moving apps from a folder Editing the Home screen Deleting a folder Indicator icons Displaying all apps on the Home screenIcon Meaning Lock screen Capture a screenshot while using the device Screen captureChanging the screen lock method Capturing a screenshot Access the notification settings Launch Settings Notification panel Using quick setting buttons Entering text Keyboard layoutChanging the input language Changing the keyboard layout Additional keyboard functions Copying and pasting Dictionary Tap and hold over a word that you want to look up Installing or uninstalling apps Installing appsGalaxy Apps Play Store Uninstalling apps and using app sleep mode Setting app permissionsManaging apps Enabling apps Bixby Starting Bixby Bixby Home Opening Bixby HomeBixby Home screen will appear To close Bixby Home, swipe to the left on the screen Using recommended content on Bixby Home Viewing Bixby cards Editing Bixby cards listSelecting apps to show as Bixby cards →Unpin Reminder Starting ReminderTap GET Started on the Upcoming Reminders card Reminder intro page will appear Creating reminders Creating reminders via the Reminder app Checking reminder notifications Viewing the reminders listCreating reminders from Bixby Home Creating reminders while browsing the Internet Setting reminder details Completing remindersRestoring reminders Edit Customising Bixby settings Deleting remindersCards Select apps to show as cards on the Bixby Home screen About Bixby View the Bixby version and legal information Phone Making callsMake or answer voice and video calls Using speed dial Making calls from call logs or contacts listMaking calls from the locked screen Making an international call Receiving calls Blocking phone numbersAnswering a call Rejecting a call Options during calls During a voice callDuring a video call Adding a phone number to Contact Adding a phone number to Contacts from the keypadAdding a phone number to Contacts from the calls list Contacts Adding contactsCreating a new contact Create new contacts or manage contacts on the device Searching for contacts Importing contactsSynching contacts with your web accounts Sharing contacts Saving and sharing profile Creating groups Merging duplicate contactsDeleting contacts Sending a group message Messages Sending messagesSend and view messages by conversation Tap Setting the message notification Setting a message reminderViewing messages Blocking unwanted messages Internet Browsing webpages Using secret mode Activating secret modeChanging security settings Deactivating secret mode Setting up email accounts Sending emailsReading emails Tap Send to send the mail Camera Camera etiquette Using swipe gestures Launching Camera Basic shooting Taking photos or recording videos This feature is available only in Auto and Pro modes Zooming in and outLocking the focus AF and exposure AE Live Focus Editing the Live Focus photos To save the photo More fun with live stickers Applying stickers randomly Using shooting modes Auto modePro mode Available options Panorama mode Continuous shot modeTake a series of photos of moving subjects HDR Rich tone mode Night modeSports mode Sound & shot mode Selfie modeApplying beauty effects Wide selfie mode Using the Selfie focus feature Customising camera settings Options for current shooting mode Camera settings Rear Camera Common Gallery Viewing imagesSelect an image Searching for images Viewing videos Viewing albums Viewing storiesCreating stories Deleting stories Syncing images and videos with Samsung Cloud Deleting images or videosDeleting 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 Samsung Pay mini Pop-up viewMoving pop-up windows Here for pop-up view Samsung Members When you are finished composing the note, tap Save Samsung NotesCreating notes Deleting notes Calendar Creating eventsTap Save to save the event Samsung Health Creating tasksSyncing events and tasks with your accounts Starting Samsung Health Using Samsung Health Monitor your health and fitness Together Steps Additional information Voice Recorder Tap to finish recording Enter a file name and tap Save Setting alarms Stopping alarmsLaunch the Clock app and tap Alarm My Files Deleting alarms Creating clocksDeleting clocks Launch the Clock app and tap World Clock Timer Calculator Radio Listening to the FM radioPlaying through the speaker Launch the Radio app Game Launcher Scanning radio stations Using Game Launcher Changing the performance modeYou can change the game performance mode Removing a game from Game Launcher Using Game Tools Blocking notifications during games Uninstalling a second app Dual Messenger SmartThings Connecting to nearby devices Using home appliances, TVs, and IoT products Registering devicesViewing and controlling registered devices Adding devices and scenes by locations Adding automations Adding locationsAdding devices to a location Adding scenes Sharing content Using additional features Google apps YouTube PhotosGoogle Duo Introduction ConnectionsOptions Wi-Fi Connecting to a Wi-Fi networkMobile networks Configure your mobile network settings Select a network from the Wi-Fi networks list Wi-Fi Direct Tap Wi-Fi DirectOn the Settings screen, tap Connections →Wi-Fi Sending and receiving data Bluetooth Pairing with other Bluetooth devices Unpairing Bluetooth devices Sending and receiving dataTap next to the device name to unpair Tap Unpair Data saver Mobile Hotspot and Tethering Using the mobile hotspot SIM card manager dual SIM models More connection settings Customise settings to control other featuresPrinting Adding printer plug-ins Printing content Sounds and vibrationDevice Select a printer to add Notifications Display Changing the screen mode or adjusting the display colour Changing the screen mode Adjusting the screen tone by colour value Screen tone screen will be adjustedOptimising the full screen colour balance Tick Advanced options Wallpapers and themes ScreensaverSelect an option Advanced features Device maintenance Using the quick optimisation feature Battery Power saving modeManaging the battery Storage Memory Device securityUltra data saving Managing the memory Apps Lock screen Biometrics and security Smart Lock 138 Face recognition Registering your face Unlocking the screen with face recognition Fingerprint recognition For better fingerprint recognition Registering fingerprints Deleting fingerprints You can delete registered fingerprintsTap Edit Tick fingerprints to delete and tap Remove Using Samsung Pass Using fingerprints with Samsung Pay miniUnlocking the screen with fingerprints Samsung Pass Registering Samsung Pass Verifying the Samsung account password Using Samsung Pass to sign in to websitesUsing Samsung Pass to sign in to apps Using Samsung Pass with websites and apps Managing sign-in informationDeleting your Samsung Pass data Tap →Settings →Delete data Secure Folder Setting up Secure Folder Setting auto lock for Secure Folder Moving content to Secure Folder Moving content from Secure FolderAdding apps Adding accounts Hiding Secure FolderBacking up and restoring Secure Folder Removing apps from Secure Folder Uninstalling Secure Folder Restoring dataTap Back up Secure Folder data Cloud and accounts Backup and restore Using a Samsung accountUsing a Google account Google Accessibility General management Adding device languagesYou can add languages to use on your device → Add language Software update Security updates informationWebsite supports only some languages About phone Troubleshooting Appendix Resetting the device Restarting the deviceForcing restart Your battery is low. Charge the battery Calls are not connected Charge the battery Ensure that the charger is connected properly Error messages appear when opening multimedia files Your device cannot find your current location Samsung Cloud does not work Ensure that you are connected to a network properly Copyright TrademarksAbout Hevc Advance

Samsung SM-J720FZKDKSA, SM-J720FZDDKSA Device maintenance, Using the quick optimisation feature

Models: SM-J720FZDDKSA SM-J720FZKDKSA SM-J720FZVDKSA

Settings

Device maintenance

Using the quick optimisation feature