Verizon iPhone 4S has service without SIM card?
I took my sim card out of my Iphone because replacing some parts and when I put it back together and turned it on and forgot to pop the sim card back in so I went to grab it and when I came back to my surprise the phone had full bars and could make calls or use data perfectly. So my question here is why does my phone have service without the sim card? Does this mean the sim card is completely use less? I really don't see a point of making a slot for one if it works perfectly fine with out it…
The SIM card in a Verizon iPhone 4S is only active when connecting to GSM networks outside of Verizon's operating territory, basically when the subscriber travels internationally. The SIM card is inactive within the United States.
Verizon is a CDMA carrier. CDMA carriers don't use SIM cards, hence the reason why the phone worked fine without it.
The iPhone 4S was made to be a dual GSM/CDMA model phone, a world phone.
GSM carriers require SIM cards.
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