For many years, mobile phones received cellular service through a physical SIM (subscriber identity module) card that connected your handset to your phone carrier. These physical SIM cards made it ...

Many smartphone users upgrade their devices to a newer device (in India), and they tend to face SIM card issues at times after switching to a new device. This is because, if you do not activate a few ...

Today’s Android phones are significantly more advanced than they were just a few years ago, but one thing hasn’t changed: the need for a SIM card. Every phone needs a physical or eSIM card to make ...

Sareena was a senior editor for CNET covering the mobile beat, including device reviews. She is a seasoned multimedia journalist with more than a decade's worth of experience producing stories for ...

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These two ways of connecting your phone to a cellular network are very different. We tell you about each and how you can switch from one to another. I started my career with CNET all the way back in ...