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 ...

I manage about 126 GSM devices. Everything from old AT&T Nokia phones to T-Mobile Blackberries to GPRS air cards. I'm sick and tired of depending on the providers to help me do simple things. So I'd ...

Once you’ve activated your iPhone with your carrier, it should continue to work on the cellular network without any problems as long as you’re within range of a tower. Nevertheless, the vagaries of ...

Have you seen the “SIM card not detected” or “No SIM card inserted” error on your Samsung Galaxy S20, S20+, S20 Ultra, or S20 FE? This frustrating error ...