By entering certain strings of numbers and symbols into your phone's dialer, you can gain access to a world of hidden ...

Some codes are specific to certain models, but other, more generic codes can be accessed on nearly any Android device. SOPA Images/LightRocket via Gett You might not know this, but your Android device ...

To check if your Android phone is unlocked, try swapping in another SIM card or test your network settings. If calls work, ...