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

There is actually a way to make the phone open line and allow any SIM of the users' choice (as long as it is functional) to be used.

Here's how to unlock a Boost Mobile phone, and what you need to know about Boost's unlocking policies going in.

To check if your Android phone is unlocked, try swapping in another SIM card or test your network settings. If calls work, ...

There was a time when getting a new cellphone felt like signing a mortgage — except with worse terms. You'd walk into a carrier store, pick out a shiny new phone, and they'd practically hand it over ...

How to activate and modify a SIM card lock on a Samsung phone Samsung phones have the One UI Android skin, which looks and functions slightly different from stock Android.