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 ...

How-To How to unlock an iPhone and use any SIM card Is your iPhone locked to a specific network or carrier? Here's how to break free and unlock your iPhone. .

Jack Wallen walks you through the process of adding a SIM PIN to help prevent anyone from accessing precious account information or using your data plan.

Why is it difficult to unlock phones or smart watches? Mobile phones, smart watches, and SIM cards often come with several codes, such as PIN, PUK, restriction codes, and security codes. These codes ...

Following successful entry, you enter a new PIN code for that SIM card and the phone will unlock to your homescreen with full access.

Done with a long term contract or looking to switch network carriers but keep the phone? Here's everything you need to unlock your Vodafone UK phone!

What does SIM lock actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.