Samsung SM2G355HZWNTWO 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.

•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-G355HN About this manual Instructional icons Copyright About this manualTrademarks Table of Contents Utilities Getting started Device layoutButtons Package contents Installing the SIM or Usim card and battery Insert the battery Replace the back cover Removing the SIM or Usim card and battery Charging the battery Charging with the chargerChecking the battery charge status Reducing the battery consumption Inserting a memory card→Settings →Storage →Unmount SD card Removing the memory cardTurning the device on and off Formatting the memory cardAdjusting the volume Switching to silent modeHolding the device Locking and unlocking the deviceIndicator icons BasicsIcon Meaning Using the touch screen Finger gesturesTapping Tapping and holding DraggingDouble-tapping Flicking PinchingRotating the screen Notifications Home screen Rearranging itemsRearranging panels Setting wallpaper Using widgetsInstalling applications Uninstalling applicationsApplications screen Rearranging applicationsUsing applications Disabling applicationsOpening an application Opening from recently-used applicationsUsing the Samsung keyboard Entering textChanging the keyboard type Changing the keyboard layoutConnecting to a Wi-Fi network Turning Wi-Fi on and offEntering text by voice Copying and pastingSetting up accounts Joining Wi-Fi networksAdding Wi-Fi networks Forgetting Wi-Fi networksConnecting with Samsung Kies Connecting with Windows Media PlayerTransferring files Removing accountsConnecting as a media device Setting a patternSecuring the device Device MTPSetting a PIN Setting a passwordUnlocking the device Upgrading the device Upgrading with Samsung KiesUpgrading over the air Communication PhoneMaking calls Finding contacts Making an international callDuring a call Adding contacts Sending a messageViewing call logs Fixed dialling numberReceiving calls Video calls Listening to a voice messageMaking a video call During a video callContacts Managing contactsSearching for contacts Displaying contactsImporting and exporting contacts Importing contactsFavourite contacts Contact groupsAdding contacts to a group Managing groupsMessages Business cardSending messages Setting up email accounts Sending scheduled messagesViewing incoming messages Reading messages Google Mail Hangouts LabelsGoogle+ PhotosChatON Web & network InternetChrome HistoryLinks Sharing webpagesBluetooth Syncing with other devicesPairing with other Bluetooth devices Sending and receiving dataReading information from an NFC tag Making a purchase with the NFC feature BeamSending data via Android Beam Media CameraCamera etiquette Shooting mode Taking photosTaking a photo Panoramic photos Applying filter effectsTap →Panorama Recording mode Taking videosTaking a video Configuring settings for Camera Zooming in and outShare shot Media Gallery Viewing imagesPlaying videos Editing imagesSetting as wallpaper Modifying imagesDeleting images Sharing imagesVideo Select a video to playYouTube Deleting videosWatching videos Sharing videosRadio Listening to the FM radioScanning radio stations Adding stations to the favourites listApplication & media stores Play StoreSamsung Apps Play BooksPlay Movies & TV Play MusicPlay Games Play NewsstandUtilities MemoComposing memos Browsing memosPlanner Creating events or tasksSyncing with Google Calendar Drive Changing calendar typeSearching for events or tasks Deleting events or tasksAlarm Setting alarmsStopping alarms Deleting alarmsTimer CalculatorWorld clock StopwatchVoice Recorder Recording voice memosPlaying voice memos Google Managing voice memosSearching the device Search scopeVoice Search My FilesGoogle Now Viewing filesSearching for a file Viewing storage informationAdding shortcuts to folders Downloads Travel & local MapsSearching for locations Getting directions for a destinationSettings About SettingsWi-Fi Setting Wi-Fi sleep policyFlight mode Setting Network notificationWi-Fi Direct Tethering and Mobile hotspotDefault messaging app Data usageMore networks Mobile networksLock screen SoundRingtones Display WallpaperAdditional settings CallAnswering/ending calls Ringtones and keypad tonesPower saving mode BatteryStorage Application manager LocationSecurity Set up SIM card lock Security updateLanguage and input LanguageDefault Samsung keyboardGoogle voice typing Voice searchText-to-speech options Pointer speedBackup and reset Add accountDate and time Accessibility Text-to-speech optionsAccessories Google SettingsPrinting About deviceTroubleshooting Your device displays network or service error messagesTouch 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.1.0
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SM-G355HZWNEUR, SM-G355HZWNGBL, SM-G355HZWNITV, SM-G355HZKNEUR, SM-G355HZWNTPL specifications

The Samsung SM-G355HZWNSEB and SM-G355HZKNSEB represent two variants of the Galaxy Core 2 smartphone, designed to cater to users looking for a balance between functionality and affordability. Launched in 2014, these devices exemplify Samsung's commitment to providing reliable performance and essential features in the mid-range smartphone category.

At the heart of the Galaxy Core 2 lies a 1.2 GHz quad-core processor, which delivers smooth multitasking and responsiveness for everyday tasks like browsing, messaging, and social media. Complementing this is a generous 1 GB of RAM, enabling users to run multiple applications simultaneously without slowing down the device. Additionally, the 4.5-inch TFT display, with a resolution of 800 x 480 pixels, provides decent clarity for viewing images, videos, and text, ensuring that users have a satisfactory visual experience.

In terms of storage, both models come with 8 GB of internal memory, expandable up to 64 GB via microSD cards, offering plenty of space for apps, photos, and files. The Galaxy Core 2 is equipped with a 5 MP rear camera, augmented by an LED flash, allowing users to capture moments with reasonable quality. A 0.3 MP front-facing camera is also present, suitable for selfies and video calls.

The devices run on Android 4.4.2 KitKat, enhanced by Samsung's TouchWiz interface, which adds a layer of customization and user-friendly features. Users benefit from access to Google Play Store, enabling them to download a wide array of applications and games to enhance their smartphone experience.

Moreover, the Galaxy Core 2 supports a range of connectivity options, including 3G, Wi-Fi, Bluetooth 4.0, and GPS, catering to the essential needs of modern smartphone users. The removable 2000 mAh battery ensures adequate power for daily use, making them ideal for individuals who prioritize efficiency.

In summary, the Samsung SM-G355HZWNSEB and SM-G355HZKNSEB are reliable smartphones that offer a solid blend of performance, features, and connectivity, making them suitable for users seeking an accessible device without sacrificing essential capabilities. With a focus on affordability and practicality, these models continue to serve as reliable options in the competitive smartphone market.
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