Why is my phone displaying invalid card ? Nd how can i fix it?

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Android Central Question

My phone is displaying invalid. Card how can i fix it?
 

hallux

Q&A Team
Jul 7, 2013
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SIM card? That could be an issue with the SIM card itself, do you have another device you can try it in? If not, I'm sure your carrier would be happy to help you troubleshoot.

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