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SIM card 101
A SIM is a tiny card with a big job. It stores your data and carries a unique identification number that links you to a...
A SIM is a tiny card with a big job. It stores your data and carries a unique identification number that links you to a specific mobile phone company. Without a SIM card inside your phone, or if the SIM is not working correctly, your phone will not be able to make calls, send texts or...
SIM PIN
A SIM PIN protects your SIM card from unauthorized and unintentional communication or internet browsing. Plus, whenever you restart your phone or remove the SIM...
A SIM PIN protects your SIM card from unauthorized and unintentional communication or internet browsing. Plus, whenever you restart your phone or remove the SIM card, your SIM card will automatically lock, showing "Locked SIM" in the status bar. To unlock it and restore your access, you’ll need the SIM PIN. What You Should Know about...

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