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 ...

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 ...

So you're in a pinch, and you need to swap out the SIM card or install a microSD in your Android device, but you can't find the nifty little ejector tool that came in the device's retail box. Fret not ...

Looking for an inexpensive yet flashy SIM Card Reader? This one supports GSM/CDMA/WCDMA and is plug and play with USB 2.0. Copy and read, edit, backup, and sort data. You can also batch modify your ...

Kent was a senior managing editor at CNET News. A veteran of CNET since 2003, he reviewed the first iPhone and worked in both the London and San Francisco offices. When not working, he's planning his ...

The details of the project are concentrated on building a SIM reader that will be used for investigation and experimentation of Smart or SIM cards. The device is useful when backing-up/restoring ...