Type in a few numbers and symbols on your dialer and discover powerful tools, system info, and settings buried deep in your phone.

Coders have a storied tradition of creating back doors in programs (or sometimes just fun little Easter eggs) that can only be accessed with a special "key." This has happened for almost as long as ...

Tips for using a cell phone safely and securely:Set a password for your cell phone to lock the phone either after some period of inactivity or at a certain time each night. Don't use an easy-to-guess ...

Use these codes to forward calls, pay your bill, check balances, etc. Some of the codes work only on certain carriers or devices. One of the codes also might erase your data, so use with caution. I've ...

Android smartphones including the latest Google Pixel variants embed some hidden features and secret codes that you can use to carry out deeper system searches and functions. Highlighted in this post ...