Question about Samsung SGH-D520 Cellular Phone

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Phone problem if i put any sim card its not working ,its showing as "NO SERVICE".i need solution.

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  • benzsams Mar 11, 2009

    but can i get any mobile centres or corresponding mobile centers

  • Anonymous Apr 30, 2009

    removed sim, reput it ...nothing (not on screen)

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Hi im josh in cebu phils. friend if you put your sim card it will displays "NO SERVICE" it means that:
- your phone is lock to only one network or of that network you are using thats why when you used another sim the phone displays no service.
- your sim card has no problem it is just your phone that is lock to other network and only open to your current sim you are using.

Solution: you need to unlock your phone so that you can use other network you need to go to the network provider and ask them to openline your phone. or you can go to the nearest mobile technicians around you and let them do the job.it is just a software deal.it could be done in a short time. So go on. Hope i helped you friend good luck!

Posted on Mar 10, 2009

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Confirm that network coverage is available where you are by contacting your service provider.

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Insert your SIM card into another phone
Note: Contact your service provider if you get the same message again.
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2.the phone will show you message of protected activated,click o.k.
3.again insert the same code without sim card.
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I am a tmobile customer and it works for me. One thing I know to make sure your SIM card insert position. For SIM card slot at the bottom, make sure the gold-colored contact facing upward. For SIM card slot at the top, make sure gold-colored contact facing downward. At the first time, I put it in a wrong position and gave me the 'No service" error. Good luck

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