After you purchase and use your cellphone for an extended period of time, you can change networks. However, the phone that you're currently using may not be offered on that network. If you wish to ...

This guide explains how to SIM unlock the Galaxy Note 8 for use on another carrier. There are a few different ways to unlock a phone, and a few reasons many choose to unlock their device. Whether that ...

One common issue that some users face is their new phone not accepting their SIM card, requiring an unlock code. We will cover various methods to obtain the unlock code and troubleshoot your SIM card ...

What does USIM locked mean? This message simply means that your LG phone is currently network locked. How to fix a USIM-locked LG phone? Insert your sim card into the phone and turn your phone on.

If you’ve bought a cellular iPad from someone other than Apple, you may later find that the iPad is locked to a particular network. If you insert a SIM from a ...

A SIM card, or subscriber identity module, is a small card in your cellphone that connects you to the network. Your SIM card contains your phone number, and lets you make phone calls, send text ...