(Subscriber Identity Module lock) A function in GSM cellphones that restricts the phone's use to a particular cellular carrier identified by a SIM card. SIM locks are used to ensure subscribers finish ...

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 ...

What does it mean if your iPhone is locked? If your iPhone is carrier-locked, it's only going to work with the cellular provider that locked it. However, if your iPhone isn't locked, you'll be able to ...