Question about Samsung BlackJack II Smartphone
I have the blackjack and when it turns on it says Invalid or missing SIM card. You can still make emergency calls if your service provider supports it. I have my simcard in their so i dont know what to do!!
Is this phone from the same service provider as your simcard? If not, not all phones are unlocked to work with the sim cards of rival companies. If both the phone and sim card are from the sam company, then you can have the company replace your sim card. They usually do this for free as a courtesy as long as you explain the problem to them. Hope this helps
Posted on May 09, 2009
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Posted on Jan 02, 2017
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