SIM: If your smartphone has a SIM card that's years old and you've never felt the need to replace it, it's time to be cautious. Telecom companies periodically upgrade their network systems. New SIM ...

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 ...

As smartphones have become more pervasive in our lives, we've all kind of been forced to pick up basic knowledge and terminology over the years. Where previously certain jargon would exclusively be ...

Seeing a “No SIM card detected” error on your Samsung Galaxy S9 can be incredibly frustrating. It prevents you from making calls, sending texts, or accessing data ...

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 ...

What if, rather than buying a MiFi or using a WiFi router app like on the Palm Pre Plus, you could stick a SIM in any device and have a shared 3G connection? That's what Sagem Orga and Telefonica are ...

Need an Internet connection on the go? Unfortunately, there aren’t a whole lot of inexpensive ways to do this. Carrying a mobile network around with you is a costly investment, but it’s also one that ...

I have a Ubiquiti EdgeRouter Lite routing between my home network and Comcast: eth0 Comcast, eth1 not in use, eth2 LAN. Recent software updates have made failover pretty simple, and so I'd like to ...