In a first for US wireless carriers, Sprint and Verizon Wireless will allow iPhone 4S customers to unlock their mirco-SIM card slots, which enables use on wireless networks around the world, reports ...

While Sprint’s initial batch of iPhone 4S handsets were sold unlocked, allowing you to swap out your Sprint SIM card for a SIM card of your choice, that will no longer be the case. From today, ...

Contrary to initial reports, the Sprint version of the iPhone 4S will not come with an unlocked microSIM slot allowing customers to pop in international SIMs; it will be able to roam on international ...

This SIM card unlocking post is presented by iToolab. iToolab has released a new tool designed to quickly and easily let you unlock your iPhone or other smartphone’s SIM card and even switch cellular ...

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Michael Capozzi (via Chronic) has apparently discovered how to unlock the iPhone 4S (reportedly AT&T version only) without any software or hardware tweaking. The unlock will assist you in using your ...

I tried searching the forum but couldn't find any posts that addresses this specifically. My apologies if it's buried in the Mac Ach hivemind. When I upgraded to the iPhone 4S I promised a friend she ...