The easiest way to check your balance on a Standard Bank SIM card is through a USSD code. This method works even without an ...

A SIM card, or subscriber identity module, is a small card in your cellphone that lets you place phone calls, send text messages, and more.

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 ...

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.