![]() If you’re on a GSM network (AT&T or T-Mobile) the SIM is what smartphones use to communicate with each carrier’s cell towers and acts as your “login info” for that network. ![]() ![]() In some cases, the SIM may also contain information such as contacts, call history, and texts. The SIM card (which stands for Subscriber Identity Module) has a couple of different uses depending on the type of network you’re on. ![]() What is a SIM Card, and Why Should I Remove it? While it’s not 100% necessary, it’s always a smart idea! This is a question we’ve gotten from many customers… “ Do I need to remove my SIM card before sending in my phone?”Īnd the answer is: Yes.
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