Samsung SM-T231NYKAXXV Troubleshooting, Your device displays network or service error messages

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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 details, 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. Contact your service provider for more details.

Your device does not turn on

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

•If the battery is user-replaceable, the battery may not be inserted properly. Insert the battery again.

•If the battery is user-replaceable, wipe both gold-coloured contacts and insert the battery again.

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Contents SM-T231 About this manual About this manual Instructional icons CopyrightTrademarks Table of Contents Travel & local Device layout Getting startedButtons Package contents Installing the SIM or Usim card Removing the SIM or Usim card Charging the batteryCharging with the charger Checking the battery charge status Reducing the battery consumptionInserting a memory card Removing the memory card →Settings →General →Storage →Unmount SD cardFormatting the memory card Holding the device Turning the device on and offSwitching to silent mode Adjusting the volumeLocking and unlocking the device Basics Indicator iconsIcon Meaning Using the touch screen Tapping Finger gesturesTapping and holding Double-tapping DraggingPinching FlickingRotating the screen Control motionsPicking up Palm motionsSweeping Using a split screen Multi Window Using Multi WindowCovering Launching applications in a split screen Multi Window Sharing content between applications Basics Notifications →Blocking modeRearranging items Home screenRearranging panels Using widgets Setting wallpaperRemoving a panel Organising with folders Installing applicationsApplications screen Rearranging applicationsOpening an application Using applicationsUninstalling applications Disabling applicationsChanging the keyboard type HelpEntering text Closing an applicationChanging the keyboard type Entering uppercaseChanging language keyboards Copying and pasting Entering text by voiceHandwriting Adding Wi-Fi networks Connecting to a Wi-Fi networkTurning Wi-Fi on and off Joining Wi-Fi networksAdding accounts Setting up accountsRemoving accounts Transferring files Connecting with Samsung KiesConnecting with Windows Media Player Connecting as a media deviceSecuring the device Setting a patternSetting a PIN Setting a passwordUpgrading with Samsung Kies → Update nowUpgrading the device Unlocking the devicePhone CommunicationMaking calls Making an international call Finding contactsDuring a call Call barring Adding contactsSending a message Fixed dialling numberReceiving calls During a video call Video callsCall forwarding Making a video callSwapping images Listening to a voice messageManaging contacts ContactsMoving contacts to Google Searching for contactsDisplaying contacts Moving contactsExporting contacts Importing and exporting contactsFavourite contacts Importing contactsManaging groups Contact groupsCreating a group Adding contacts to a groupBusiness card MessagesSending messages Sending scheduled messages Setting up email accountsViewing incoming messages Sending messages Reading messages Google Mail Labels Google+ HangoutsPhotos Internet Web & networkLinks ChromeHistory Saved pagesSyncing with other devices BluetoothSending and receiving data Pairing with other Bluetooth devicesMusic MediaPlaying music Creating playlists Setting a song as ringtonePlaying music by mood Camera etiquette CameraTaking photos Taking a photoPanoramic photos Shooting modeTaking a video Recording modeTaking videos Applying filter effectsShare shot Zooming in and outConfiguring settings for Camera Shortcuts GalleryViewing images Zooming in and out Playing videosTrimming segments of a video Editing imagesDeleting images Favourite imagesSharing images Using Tag buddy Setting as wallpaperTagging faces Deleting videos VideoWatching videos Using Popup Video playerYouTube Sharing videosPlay Store Application & media storesPlay Books Samsung AppsPlay Newsstand Play Movies & TVPlay Music Play GamesComposing memos UtilitiesMemo Adding and managing categoriesViewing a memo PlannerBrowsing memos Creating events or tasksSyncing with Google Calendar Deleting events or tasks Kids ModeChanging calendar type Searching for events or tasksCloud DropboxSyncing with the Samsung account Syncing with Dropbox DriveHancom Office Viewer Backing up or restoring dataReading documents Searching documentsWord processor Spreadsheet PresentationAlarm World Clock Voice CalculatorSearching the device GoogleGoogle Now My Files Voice SearchViewing files Viewing storage information Searching for a fileAdding FTP server shortcuts to the device Changing the view modeCreating folders Adding shortcuts to foldersGetting directions for a destination Travel & localMaps Searching for locationsSetting Wi-Fi sleep policy SettingsAbout Settings Wi-FiWi-Fi Direct BluetoothTethering and Wi-Fi hotspot Setting Network notificationData usage Flight modeLocation Printing Default messaging appMore networks Nearby devicesSound DeviceDisplay Lock screen Multi windowNotification panel AccessibilityWallpaper FontText-to-speech options Answering and ending callsCall Call settingsAnswering/ending calls Additional settings Call accessoriesCall alerts Internet call settings Blocking modeRingtone and sound settings Video call settingsLanguage DefaultControls Language and inputVoice recogniser Google voice typingVoice search Text-to-speech options General Accessories Backup and resetDate and time Application manager Default applicationsBattery Power saving modeSecurity Set up SIM card lockAbout device Google SettingsYour device displays network or service error messages TroubleshootingTouch screen responds slowly or improperly Sound echoes during a call Your device is hot to the touch Another Bluetooth device is not located Data stored on the device has been lost English EU /2014. Rev.1.2

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