Samsung SM-G390FZKAILO manual Sound echoes during a call

Page 120

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 a headset, 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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Contents SM-G390F SM-G390Y Table of Contents Appendix Basics Read me firstDevice overheating situations and solutions When the device heats up while charging the batteryDo the following when the device heats up Instructional iconsWhen the device heats up during use Device limitations when the device overheats Precautions for operating environmentMaintaining water and dust resistance Package contents Device layout Keys RecentsBattery Installing the batteryRemoving the battery Charging the battery Battery charging tips and precautions Reducing the battery consumptionViewing the estimated charging time Power saving mode Maximum power saving modeInstalling the SIM or Usim card SIM or Usim card microSIM cardInstalling a memory card Memory card microSD cardRemoving the SIM or Usim card Removing the memory card Attaching a hand strap Formatting the memory cardTurning the device on and off Controlling the touchscreenRestarting the device Tapping Tapping and holdingDragging Double-tapping SwipingSpreading and pinching Home screen Home screenHome screen options Adding itemsMoving items Removing itemsCreating folders Using quick options Apps screenManaging panels Rearranging items Indicator icons Searching for itemsLock screen Using the notification panel Notification panelUsing quick setting buttons Searching for content or nearby devices Setting search categoriesEntering text FinderAdditional keyboard functions Changing the input languageChanging the keyboard layout Screen capture Opening appsCopying and pasting Capturing a screenshotSecure Folder IntroductionSetting auto lock for Secure Folder Moving contentCreating Secure Folder Adding apps Adding accountsHiding Secure Folder Removing apps from Secure FolderUninstalling Secure Folder Multi windowSplit screen view Using additional options Adjusting the window sizeSharing text or images between windows Minimising the split screen viewMaximising a window Samsung account Registering your Samsung accountRegistering a new Samsung account Registering an existing Samsung accountTransferring data via Smart Switch Transferring data from your previous deviceRemoving your Samsung account Transferring data wirelessly via Wi-Fi Direct Transferring backup data from a computer On the computer, launch Smart SwitchConnecting the device to a computer for data transfer Device and data managementTransferring data via Samsung Cloud Updating with Smart Switch Updating the deviceUpdating over the air Performing a data reset Using a Samsung accountUsing a Google account Backing up and restoring dataSharing features Emergency mode Deactivating emergency modeInstalling or uninstalling apps Installing appsGalaxy Apps Play StoreUninstalling or disabling apps Setting app permissionsManaging apps Enabling appsPhone Making callsReceiving calls Blocking phone numbers Options during callsMissed calls During a voice callContacts Adding contactsDuring a video call Creating a new contactAdding a phone number to Contacts from the keypad Enter contact informationAdding a phone number to Contacts from the calls list Importing contactsSynching contacts with your web accounts Searching for contacts Sharing contactsMessages Merging duplicate contactsDeleting contacts Sending messages Viewing messagesSetting the message notification Setting a message reminderBlocking unwanted messages Internet Browsing webpagesUsing secret mode Activating secret modeChanging security settings Deactivating secret modeCamera Sending emailsReading emails Using swipe gestures Launching CameraBasic shooting Taking photos or recording videosLocking the focus AF and exposure AE Auto mode Pro modeCustomising shooting modes Panorama Continuous shotHDR Rich tone NightTag shot SportsUsing the selfie flash Sound & shotSelfie Wide selfie Applying beauty effectsApplications Camera settings Quick settingsCamera settings Gallery CommonViewing images and videos Viewing imagesViewing albums Viewing storiesViewing videos Syncing images and videos with Samsung Cloud Deleting images or videosCreating stories Deleting storiesSamsung Notes Sharing images or videosCreating notes Deleting multiple images and videosCalendar Deleting notesCreating events Creating tasksHealth Syncing events and tasks with your accountsStarting S Health Using S Health Monitor your health and fitnessAdditional information Voice Recorder Making voice recordingsSetting alarms Stopping alarmsDeleting alarms My FilesCreating clocks Deleting clocksCalculator RadioListening to the FM radio Scanning radio stations Google apps Photos DuoGoogle Wi-Fi Connecting to a Wi-Fi networkIntroduction ConnectionsWi-Fi Direct Tap ConnectBluetooth Ending the device connectionPairing with other Bluetooth devices Sending and receiving dataUnpairing Bluetooth devices Data usageFlight mode NFC and paymentLimiting data usage Using the NFC feature Making payments with the NFC featureSending data Using the mobile hotspot Mobile hotspot and tetheringMore connection settings Mobile networksLocation Printing Adding printer plug-insSounds and vibration Download boosterNotifications DisplayOptions Easy mode Blue light filterAdvanced features Switching to easy modeWallpapers and themes Managing shortcutsSend SOS messages Device maintenance Adding emergency contactsUsing the quick optimisation feature BatteryStorage Apps Lock screen and securityMemory Device securityCloud and accounts Samsung CloudAccounts Manage cloud storageAdding accounts Removing accountsAccessibility Backup and restoreGoogle General management Software update About deviceTroubleshooting AppendixResetting the device Forcing restartSound 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 Copyright Trademarks

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