That is strange that your iPhone 5s Sim card slot will not open, PETEWI7. I can assure you that we do not lock any 4G devices. http://vz.to/2cWXVRk
Is there any damage to the iPhone? What happens when you try to take the Sim card out? Here is how to remove your Sim card. http://vz.to/2cVey1t
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