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Invalid sim when i insert my sim it flashes a message saying "sim card registration failed" what should i do?

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  • matthewmacor Apr 22, 2009

    i have been using this phone for many months and i have never encountered this problem until today when i plugged my usb into it and then my phone turned off and when i restarted it it flashed a message saying invalid sim.

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Invalid SIM and Unregistered SIM are two different problems. Invalid SIM means the phone is locked to a certain company and you are trying to use a SIM card for another company. Unregistered SIM means the SIM card you are using is not active and you need to contact your service provider to get it activated. In order to unlock the phone so you can use anyone's SIM, you must contact the provider that the phone is locked to.

Posted on Apr 22, 2009

  • Theodore Cossitt
    Theodore Cossitt Apr 30, 2009

    Hmm,
    Well, in that case I would consider trying your SIM card in another device. If it works then there is a problem with the phone itself. If however it does not work in another phone then you will need to replace the SIM card.


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SOURCE: when i insert my sim card it flashes a messages

The sim card is not activated.contact your service provider

Posted on Oct 12, 2011

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