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 ...

Imagine trying to call someone urgently from your Android device only to be greeted by the error message "SIM card not detected." This error means that your device is ...

Whether you've recently added a new line to your Android phone for faster internet or gotten a new work SIM, a "SIM Not Provisioned" error message can disrupt your ...

Something rather interesting was announced during the Mobile World Congress (MWC) in Barcelona, but it managed to fly completely under the radar. We’re talking about the rSIM, the “world’s first ...

Jay primarily writes news and deals posts for Android Police. Before joining AP, he spent the past several years yammering on about the crazy world of Android for various tech outlets. Besides ...

If your new phone no longer supports SIM cards, or you don't want to use them anymore, you can convert to eSIM instead. I started my career with CNET all the way back in 2005, when the (original) ...

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 ...