Samsung GH68-23488A manual Your phone displays Network unavailable or Network error

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Message Try this to solve the problem:

Your SIM card is blocked, usually as a Enter PUK result of entering your PIN incorrectly

several times. You must enter the PUK supplied by your service provider.

Your phone displays “Network unavailable” or “Network error.”

•When you are in areas with weak signals or poor reception, you may lose reception. Move to another area and try again.

•You cannot access some options without a subscription. Contact your service provider for more details.

You enter a number, but the call is not dialled.

•Ensure that you have pressed the Dial key: [ ].

•Ensure that you have accessed the right cellular network.

•Ensure that you have not set call barring for the phone number.

Another caller cannot reach you.

•Ensure that your phone is turned on.

•Ensure that you have accessed the right cellular network.

•Ensure that you have not set call barring for the phone number.

troubleshooting

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Contents English XSG /2010. Rev S5200 Using this manual Instructional iconsCopyright information Contents Troubleshooting Safety warnings Keep your phone away from small children and petsProtect your hearing Install mobile phones and equipment with caution Handle and dispose of batteries and chargers with careAvoid interference with pacemakers Safety precautions Turn off the phone near medical equipment Protect batteries and chargers from damageHandle your phone carefully and sensibly Avoid interference with other electronic devices Important usage information Allow only qualified personnel to service your phoneEnsure maximum battery and charger life Use your phone in the normal positionEnsure access to emergency services Specific Absorption Rate SAR certification informationCorrect disposal of this product Correct disposal of batteries in this product DisclaimerSafety and usage information Introducing your mobile phone UnpackPhone layout MouthpieceKeys WayDisplay IconsIcon Definition Install the SIM card and battery Assembling and preparing your mobile phoneInsert the SIM card Charge the battery Insert a memory card optional Switch to the offline profile Turn your phone on and offSwitch to or from the silent profile Access menusAdjust the volume of the key tones Customise your phoneSelect a wallpaper Idle mode Create a phone profileSelect a theme for the display Set menu shortcuts Use the simplified menusLock your phone Use basic call functions Send a text or multimedia message Send and view messagesRecord a conversation Send an emailEnter text View text or multimedia messagesAdd a new contact Add and find contactsView an email Find a contactView photos Use basic camera functionsCapture photos Capture videosListen to music View videosListen to the FM radio Listen to music files NavigationBrowse the web Browse web pagesBookmark your favourite web pages Use advanced call functions View and dial missed callsCall a recently dialled number Answer a second call Hold a call or retrieve a held callDial a second call Make a multiparty call conference callCall a contact from the phonebook Use advanced phonebook functionsCall an international number Create a namecardSet speed dial numbers Create a group of contactsCreate a multimedia template Use advanced messaging functionsCreate a text template Insert text templates in new messagesUse the Bluetooth messenger Create a message from a multimedia templateUse advanced music functions Copy music files via Samsung PC StudioCopy music files to a memory card Synchronise your phone with Windows Media Player Create a playlistCustomise your music player settings Record songs from the FM radioStore radio stations automatically Find information of musicUse the Bluetooth wireless feature Turn on the Bluetooth wireless featureFind and pair with other Bluetooth- enabled devices Send data using the Bluetooth wireless featureReceive data using the Bluetooth wireless feature Activate and send an SOS message Activate the mobile tracker Make fake calls Record a voiceMake a fake call Record and play voice memos Record a voice memoPlay a voice memo Use the voice answering feature Turn on the voice answering featureListen to voice messages Adjust an image Edit imagesApply effects to images Transform an image Crop an imageInsert a visual feature Print imagesEdit videos Play games Use Java-powered games and applicationsDownload games or applications Launch applicationsView world clocks View a world clockAdd a world clock to your display Stop an alarm Set and use alarmsSet a new alarm Deactivate an alarmConvert currencies or measurements Set a countdown timerUse the calculator Use the stopwatch Manage your calendar Create new tasks Create text memos Change the calendar viewView events Troubleshooting Your phone displays Network unavailable or Network error Phone beeps and the battery icon flashes