Switching carriers or using a different SIM card on your iPhone doesn’t have to be complicated. If your device is SIM-locked, it can prevent you from connecting ...

Unlock your iPhone 4 effortlessly using just a SIM card, simplifying access to different carriers.

Click to viewAccording to the usual suspects, now you can 100%-unlock the iPhone using a Turbo SIM card, without depending on the version of your current carrier card. Testers say it will give you ...

In order to use the tool to SIM unlock your iPhone, you do need to have an AT&T SIM card–in the case of the iPhone 4S, you’ll need access to a working or non-working micro SIM card for ...

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 ...

The Apple iPhone 4S is promoted as a world phone, but international travelers should be aware of what that means. I also went through the process and can answer your questions.

That model comes with a T-Mobile SIM card installed, according to Apple, and supports only GSM carriers, such as T-Mobile and AT&T. The unlocked, SIM-free versions of the iPhone 6 and 6 Plus ship ...

A new hardware-based iPhone 4 hack unlocks devices running everything up to and including iOS 4.3, though it carries a $70 price tag and a couple of headache-inducing attached strings.