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My phone is always invalid sin in my dual sim

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Webcamvenkat

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What is Mobile Phone Brand and Model?
If you insert Sim it shows Invalid Sim means it locked to some Network,You need to Unlock it,You can get the Unlock code from here Prounlocking.com Then you can use any GSM Sim in the Phone,it will not show "INVALID SIM"

Posted on Aug 27, 2011

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