Samsung SM-G390FZKAILO manual Appendix, Troubleshooting

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Appendix

Troubleshooting

Before contacting a Samsung Service Centre, please attempt the following solutions. Some situations may not apply to your device.

When you turn on your device or while you are using the device, it prompts you to enter one of the following codes:

•Password: When the device lock feature is enabled, you must enter the password you set for the device.

•PIN: When using the device for the first time or when the PIN requirement is enabled, you must enter the PIN supplied with the SIM or USIM card. You can disable this feature by using the Lock SIM card menu.

•PUK: Your SIM or USIM card is blocked, usually as a result of entering your PIN incorrectly several times. You must enter the PUK supplied by your service provider.

•PIN2: When you access a menu requiring the PIN2, you must enter the PIN2 supplied with the SIM or USIM card. For more information, contact your service provider.

Your device displays network or service error messages

•When you are in areas with weak signals or poor reception, you may lose reception. Move to another area and try again. While moving, error messages may appear repeatedly.

•You cannot access some options without a subscription. For more information, contact your service provider.

Your device does not turn on

•When the battery is completely discharged, your device will not turn on. Fully charge the battery before turning on the device.

•The battery may not be inserted properly. Insert the battery again.

•Wipe both gold-coloured contacts and insert the battery again.

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Contents SM-G390F SM-G390Y Table of Contents Appendix Basics Read me firstDo the following when the device heats up Device overheating situations and solutionsWhen the device heats up while charging the battery 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 Reducing the battery consumption Battery charging tips and precautionsViewing the estimated charging time Power saving mode Maximum power saving modeInstalling the SIM or Usim card SIM or Usim card microSIM cardMemory card microSD card Installing a memory cardRemoving the SIM or Usim card Removing the memory card Attaching a hand strap Formatting the memory cardControlling the touchscreen Turning the device on and offRestarting the device Tapping and holding TappingDragging Swiping Double-tappingSpreading and pinching Home screen Home screenHome screen options Adding itemsRemoving items Moving itemsCreating folders Apps screen Using quick optionsManaging panels Rearranging items Indicator icons Searching for itemsLock screen Using the notification panel Notification panelUsing quick setting buttons Entering text Searching for content or nearby devicesSetting search categories FinderChanging the input language Additional keyboard functionsChanging the keyboard layout Copying and pasting Screen captureOpening apps Capturing a screenshotSecure Folder IntroductionMoving content Setting auto lock for Secure FolderCreating Secure Folder Hiding Secure Folder Adding appsAdding accounts Removing apps from Secure FolderUninstalling Secure Folder Multi windowSplit screen view Using additional options Adjusting the window sizeMinimising the split screen view Sharing text or images between windowsMaximising a window Registering a new Samsung account Samsung accountRegistering your 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 Transferring backup data from a computer On the computer, launch Smart SwitchDevice 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 Google account Performing a data resetUsing a Samsung account Backing up and restoring dataSharing features Emergency mode Deactivating emergency modeGalaxy Apps Installing or uninstalling appsInstalling apps Play StoreManaging apps Uninstalling or disabling appsSetting app permissions Enabling appsPhone Making callsReceiving calls Missed calls Blocking phone numbersOptions during calls During a voice callDuring a video call ContactsAdding contacts Creating a new contactAdding a phone number to Contacts from the keypad Enter contact informationImporting contacts Adding a phone number to Contacts from the calls listSynching contacts with your web accounts Searching for contacts Sharing contactsMerging duplicate contacts MessagesDeleting contacts Sending messages Viewing messagesSetting a message reminder Setting the message notificationBlocking unwanted messages Internet Browsing webpagesChanging security settings Using secret modeActivating secret mode Deactivating secret modeSending emails CameraReading emails Using swipe gestures Launching CameraBasic shooting Taking photos or recording videosLocking the focus AF and exposure AE Pro mode Auto modeCustomising shooting modes Panorama Continuous shotTag shot HDR Rich toneNight SportsSound & shot Using the selfie flashSelfie Wide selfie Applying beauty effectsApplications Quick settings Camera settingsCamera settings Gallery CommonViewing images and videos Viewing imagesViewing stories Viewing albumsViewing videos Creating stories Syncing images and videos with Samsung CloudDeleting images or videos Deleting storiesCreating notes Samsung NotesSharing images or videos Deleting multiple images and videosCalendar Deleting notesCreating events Creating tasksSyncing events and tasks with your accounts HealthStarting S Health Using S Health Monitor your health and fitnessAdditional information Voice Recorder Making voice recordingsDeleting alarms Setting alarmsStopping alarms My FilesCreating clocks Deleting clocksRadio CalculatorListening to the FM radio Scanning radio stations Google apps Duo PhotosGoogle Introduction Wi-FiConnecting to a Wi-Fi network ConnectionsWi-Fi Direct Tap ConnectBluetooth Ending the device connectionPairing with other Bluetooth devices Sending and receiving dataUnpairing Bluetooth devices Data usageNFC and payment Flight modeLimiting data usage Using the NFC feature Making payments with the NFC featureSending data Using the mobile hotspot Mobile hotspot and tetheringMobile networks More connection settingsLocation Printing Adding printer plug-insSounds and vibration Download boosterDisplay NotificationsOptions Easy mode Blue light filterWallpapers and themes Advanced featuresSwitching to easy mode Managing shortcutsSend SOS messages Device maintenance Adding emergency contactsBattery Using the quick optimisation featureStorage Memory AppsLock screen and security Device securityCloud and accounts Samsung CloudAdding accounts AccountsManage cloud storage Removing accounts Backup and restore Accessibility Google 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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