Samsung SM-G390FZKAILO manual Battery depletes faster than when first purchased

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Appendix

The battery does not charge properly (For Samsung-approved chargers)

•Ensure that the charger is connected properly.

•If the battery terminals are dirty, the battery may not charge properly or the device may turn off. Wipe both gold-coloured contacts and try charging the battery again.

The battery depletes faster than when first purchased

•When you expose the device or the battery to very cold or very hot temperatures, the useful charge may be reduced.

•Battery consumption increases when you use messaging features or some apps, such as games or the Internet.

•The battery is consumable and the useful charge will get shorter over time.

Your device is hot to the touch

When you use apps that require more power or use apps on your device for an extended period of time, your device may feel hot to the touch. This is normal and should not affect your device’s lifespan or performance.

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.

Error messages appear when launching the camera

Your device must have sufficient available memory and battery power to operate the camera app. If you receive error messages when launching the camera, try the following:

•Charge the battery.

•Free some memory by transferring files to a computer or deleting files from your device.

•Restart the device. If you are still having trouble with the camera app after trying these tips, contact a Samsung Service Centre.

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Contents SM-G390F SM-G390Y Table of Contents Appendix Read me first BasicsWhen the device heats up while charging the battery Device overheating situations and solutionsDo the following when the device heats up Instructional iconsWhen the device heats up during use Precautions for operating environment Device limitations when the device overheatsMaintaining water and dust resistance Package contents Device layout Recents KeysInstalling the battery BatteryRemoving the battery Charging the battery Reducing the battery consumption Battery charging tips and precautionsViewing the estimated charging time Maximum power saving mode Power saving modeSIM or Usim card microSIM card Installing the SIM or Usim cardMemory card microSD card Installing a memory cardRemoving the SIM or Usim card Removing the memory card Formatting the memory card Attaching a hand strapControlling the touchscreen Turning the device on and offRestarting the device Tapping and holding TappingDragging Swiping Double-tappingSpreading and pinching Home screen Home screenAdding items Home screen optionsRemoving items Moving itemsCreating folders Apps screen Using quick optionsManaging panels Rearranging items Searching for items Indicator iconsLock screen Notification panel Using the notification panelUsing quick setting buttons Setting search categories Searching for content or nearby devicesEntering text FinderChanging the input language Additional keyboard functionsChanging the keyboard layout Opening apps Screen captureCopying and pasting Capturing a screenshotIntroduction Secure FolderMoving content Setting auto lock for Secure FolderCreating Secure Folder Adding accounts Adding appsHiding Secure Folder Removing apps from Secure FolderMulti window Uninstalling Secure FolderSplit screen view Adjusting the window size Using additional optionsMinimising the split screen view Sharing text or images between windowsMaximising a window Registering your Samsung account Samsung accountRegistering a new Samsung account Registering an existing Samsung accountTransferring data from your previous device Transferring data via Smart SwitchRemoving your Samsung account Transferring data wirelessly via Wi-Fi Direct On the computer, launch Smart Switch Transferring backup data from a computerDevice and data management Connecting the device to a computer for data transferTransferring data via Samsung Cloud Updating the device Updating with Smart SwitchUpdating over the air Using a Samsung account Performing a data resetUsing a Google account Backing up and restoring dataSharing features Deactivating emergency mode Emergency modeInstalling apps Installing or uninstalling appsGalaxy Apps Play StoreSetting app permissions Uninstalling or disabling appsManaging apps Enabling appsMaking calls PhoneReceiving calls Options during calls Blocking phone numbersMissed calls During a voice callAdding contacts ContactsDuring a video call Creating a new contactEnter contact information Adding a phone number to Contacts from the keypadImporting contacts Adding a phone number to Contacts from the calls listSynching contacts with your web accounts Sharing contacts Searching for contactsMerging duplicate contacts MessagesDeleting contacts Viewing messages Sending messagesSetting a message reminder Setting the message notificationBlocking unwanted messages Browsing webpages InternetActivating secret mode Using secret modeChanging security settings Deactivating secret modeSending emails CameraReading emails Launching Camera Using swipe gesturesTaking photos or recording videos Basic shootingLocking the focus AF and exposure AE Pro mode Auto modeCustomising shooting modes Continuous shot PanoramaNight HDR Rich toneTag shot SportsSound & shot Using the selfie flashSelfie Applying beauty effects Wide selfieApplications Quick settings Camera settingsCamera settings Common GalleryViewing images Viewing images and videosViewing stories Viewing albumsViewing videos Deleting images or videos Syncing images and videos with Samsung CloudCreating stories Deleting storiesSharing images or videos Samsung NotesCreating notes Deleting multiple images and videosDeleting notes CalendarCreating tasks Creating eventsSyncing events and tasks with your accounts HealthStarting S Health Monitor your health and fitness Using S HealthAdditional information Making voice recordings Voice RecorderStopping alarms Setting alarmsDeleting alarms My FilesDeleting clocks Creating clocksRadio CalculatorListening to the FM radio Scanning radio stations Google apps Duo PhotosGoogle Connecting to a Wi-Fi network Wi-FiIntroduction ConnectionsTap Connect Wi-Fi DirectEnding the device connection BluetoothSending and receiving data Pairing with other Bluetooth devicesData usage Unpairing Bluetooth devicesNFC and payment Flight modeLimiting data usage Making payments with the NFC feature Using the NFC featureSending data Mobile hotspot and tethering Using the mobile hotspotMobile networks More connection settingsLocation Adding printer plug-ins PrintingDownload booster Sounds and vibrationDisplay NotificationsOptions Blue light filter Easy modeSwitching to easy mode Advanced featuresWallpapers and themes Managing shortcutsSend SOS messages Adding emergency contacts Device maintenanceBattery Using the quick optimisation featureStorage Lock screen and security AppsMemory Device securitySamsung Cloud Cloud and accountsManage cloud storage AccountsAdding accounts Removing accountsBackup and restore AccessibilityGoogle General management About device Software updateAppendix TroubleshootingForcing restart Resetting the deviceSound echoes during a call Battery depletes faster than when first purchased Photo quality is poorer than the preview Your device cannot find your current location Trademarks Copyright

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