What is a SIM card used for? A SIM card, or a subscriber identity module/subscriber identification module, is a tiny memory card that contains unique information and is linked to a particular network ...

A Chinese tech shop has done what Apple chose not to: add a physical SIM card slot to the iPhone Air. There’s a catch, though ...

While most people manage quite well with a single SIM card, if you want better demarcation between your work and home life, or you want to make roaming with multiple SIM cards easier, then having the ...

If you’ve bought an iPad with 4G/cellular capabilities (we discuss whether that’s a good idea in our 2015 iPad buying guide) or a new iPhone, you need to buy and install a SIM card. Here, we explain ...

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 ...

Apple’s latest iPhone Air has taken a bold step forward in mobile technology – it’s an eSIM-only device. That means there’s no slot for a physical SIM card, anywhere in the world, including India. For ...

Activate your iPhone back to AT&T if the SIM card you insert after you install blackra1n onto the device doesn't work properly. Blackra1n is a third-party program that "jailbreaks" SIM-bearing iPhones ...