A friend had just changed to the new huge Samsung smartphone. I quickly asked if he had cleaned up her phone before trading it in. Fortunately, she said the sales staff had helped her with it.
Here is how to reset and wipe your Android, Apple and Windows smartphone.
Android: Press “Settings”. Press “Privacy” and press “Factory data reset”. Select “Erase SD card” and press the “Reset phone”.
Apple iOS: Press “Settings”, press “General”, and press “Reset”. Choose the option “Erase All Content and Settings”. Press “Reset iPhone”.
Windows Phone 7:
Press “Settings”. Press “About”. Press “Reset your phone”. Press “Yes”.