In other words, the unlocked SIM card that comes with Sprint's iPhone 4S will be short-lived as it will become locked via an over-the-air update soon, and will only be unlocked if your account is ...

Some owners of Apple's new iPhone 4S have been hit with SIM card error messages, even if they are connected to a CDMA carrier that does not use SIM cards. One reader ...

While this certainly doesn't appear to be as widespread a problem as iOS 5's battery issues, a small group of iPhone 4S users are reporting that that their devices randomly fail to recognize the ...

The tray appears essentially identical to the SIM card tray found in the iPhone 4S and 4, and if the part is indeed legitimate it suggests that Apple may retain a similar flat-edged form factor ...

In theory, this means that the iPhone 4S would be able to use prepaid SIM cards on networks outside the US so customers wouldn’t have to pay for international roaming. Macworld said this would ...

iPhone 4s But what about those with an iPhone 4 or iPhone 4s? You’ll need a Micro-SIM to use the smartphone, the second-smallest SIM card available. Those with a Nano-SIM that require a Micro ...

iPhone 4S users are reporting SIM card issues with their handsets. A thread about the topic on the Apple support site has now accumulated more than 200 posts and 30,000 views, suggesting that the ...

UPDATE: A Sprint representative tells Ars Technica that it will not offer the iPhone 4S with an unlocked micro-SIM card slot, despite earlier reports that it would. Instead, customers must use ...

The SIM card recognition issue appears to be another significant problem for iPhone 4S users. Some users have reported that their device suddenly stops recognizing the SIM card, rendering the ...

Starting today, Sprint is now locking the SIM card slots of each iPhone 4S they sell upon activation. This means that customers won’t be able to use SIM cards from other networks in the ...