After you purchase and use your cellphone for an extended period of time, you can change networks. However, the phone that you're currently using may not be offered on that network. If you wish to ...

All modern iPhones and iPads now use nano-SIM cards. Unfortunately, this can be a bit of a problem for anyone switching from an older device, because the nano-SIM is much smaller than the micro-SIMs ...

Find out how to trim your own micro-SIM card for use in phones that require this new format. Sharon Profis Former Vice President of Content, CNET Studios As vice president of CNET Studios, Sharon led ...

This works. There is a push-to-eject mechanism under the SIM tray, but the pressure required to engage it is considerable and the plastic tray is pretty weak. If you’re going to eject the card this ...