Samsung SM-G388FDSADDE 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 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-G388F Table of Contents Messages & email Read me first Maintaining water and dust resistance Instructional icons Package contents Getting startedDevice layout Keys Using the SIM or Usim card and battery Installing the SIM or Usim card and batteryGetting started Removing the SIM or Usim card and battery Charging the battery Getting started Reducing the battery consumption Using a memory cardInstalling a memory card →Settings →Storage →Unmount SD card Removing the memory card→ Erase everything Attaching a hand strapFormatting the memory card Turning the device on and off Locking and unlocking the screenTapping Using the touchscreenBasics Double-tapping Tapping and holdingDragging Swiping Spreading and pinchingHome screen layout Home screenHome screen options Apps screen Indicator icons Icon MeaningUsing the notification panel Notification panelRearranging quick setting buttons Using the quick setting buttonsInstalling or uninstalling apps Installing appsOpening apps Samsung Galaxy AppsUninstalling or disabling apps Play StoreManaging apps Enabling appsEntering text Keyboard layoutChanging the input language Changing the keyboard layoutCopying and pasting Using additional keyboard functionsScreen capture Ultra power saving mode My FilesIncreasing touchscreen sensitivity Wi-Fi Network connectivityMobile data Tap ConnectAbout tethering and mobile hotspots Using the mobile hotspotTethering and Mobile hotspot Using USB tethering Using Bluetooth tetheringTick Bluetooth tethering Tick USB tetheringManaging the Home screen PersonalisingManaging the Home and Apps screens Managing the Apps screen Managing panelsChanging the sorting method Hiding appsSetting wallpaper and ringtones Setting wallpaperChanging ringtones Tap Set as wallpaper or DoneUsing backup accounts PasswordChanging the screen lock method Transferring data from your previous deviceUsing Smart Switch with computers Using Samsung Smart SwitchUsing Smart Switch Mobile Setting up accounts Using Samsung KiesAdding accounts Removing accountsMaking calls from call logs or contacts list PhoneMaking calls Receiving calls Answering a callRejecting a call Missed callsDuring a video call Options during callsDuring a voice call Contacts Adding contactsMoving contacts from other devices Creating contacts manuallyTap →Add shortcut to home screen Searching for contactsAdding shortcuts for contacts to the Home screen Sending messages Messages & emailMessages Setting up email accounts Viewing incoming messagesSending emails Reading emails Taking photos or recording videos CameraBasic shooting Shooting modes AutoBeauty face Launching Camera on the locked screenPanorama Best photoContinuous shot AquaCamera settings SelfieCamera Viewing content on the device GalleryCreating events or tasks Useful apps and featuresPlanner Internet Syncing events and tasks with your accountsVideo Playing videosWorld clock AlarmClock Timer CalculatorMemo StopwatchVoice Recorder Recording voice memosPlaying voice memos Searching for memosRadio Listening to the FM radioGoogle apps Scanning radio stationsPlay Music Play Movies & TVPlay Books Play NewsstandVoice Search Google SettingsGoogle Pairing with other Bluetooth devices BluetoothAbout Bluetooth Receiving an image Sending and receiving dataSending an image Wi-Fi Direct Unpairing Bluetooth devicesAbout Wi-Fi Direct Connecting to other devicesEnding the device connection Using the NFC feature About NFCMaking a purchase with the NFC feature Sending dataConnecting to a printer Printing contentMobile printing Adding printer plug-insDevice & data manager Updating the deviceUpdating over the air Updating with Samsung KiesConnecting as a media device Connecting with Samsung KiesTransferring files between the device and a computer Device MTPPerforming a data reset Using a Google accountTap Backup and reset and tick Back up my data Backing up and restoring dataWi-Fi SettingsAbout Settings Bluetooth Setting Wi-Fi sleep policyTap →Advanced →Keep Wi-Fi on during sleep Tethering and Mobile hotspotLocation Flight modeData usage Default messaging app PrintingMore networks Mobile networksSound DisplayLock screen CallBackup and reset AccessibilityApplication manager AccountsSettings Default Xcover keyLanguage and input LanguageGoogle voice typing Pointer speed Date and timeText-to-speech options Storage Ultra power saving modeBattery Security About device Storage type Set a storage type for credential filesTroubleshooting Your device displays network or service error messagesTouchscreen responds slowly or improperly Sound echoes during a call Your device is hot to the touch Another Bluetooth device is not located Data stored in the device has been lost Copyright
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SM-G388FDSAFTM, SM-G388FDSACOS, SM-G388FDSAAUT, SM-G388FDSATIM, SM-G388FDSAETL specifications

The Samsung SM-G388FDSAPRO, SM-G388FDSAPRT, SM-G388FDSAITV, SM-G388FDSADPL, and SM-G388FDSADBT represent a range of robust smartphones designed to cater to various user needs. Each model shares a common foundation but varies in specific features, tailoring to distinct preferences and requirements.

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One of the standout features of the Samsung SM-G388 series is its remarkable performance, powered by an efficient processor that ensures smooth multitasking. Whether users are browsing the web, streaming videos, or running multiple applications simultaneously, the device maintains a responsive and lag-free experience.

The smartphone series integrates a vibrant display that enhances viewing experiences. With vivid colors and sharp resolutions, users can enjoy their media in stunning quality. Additionally, the devices boast advanced touch sensitivity, providing intuitive navigation that appeals to both new users and seasoned tech enthusiasts.

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Battery life is another crucial aspect where the SM-G388 series excels. With a substantial battery capacity, users can rely on their devices throughout the day without the need for frequent recharging. This is especially beneficial for users who engage in demanding activities.

In summary, the Samsung SM-G388FDSAPRO, SM-G388FDSAPRT, SM-G388FDSAITV, SM-G388FDSADPL, and SM-G388FDSADBT present a competitive choice in the smartphone market. Their combination of durability, performance, captivating displays, and versatile connectivity options make them appealing to a wide range of users, whether on the hunt for a dependable device or a feature-rich smartphone experience.
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