Restoring Devices To Factory Settings
If you're looking to get rid of your Android phone, or just start with a clean slate, you'll want to perform what is called a "factory reset". It's so-called because it restores your phone to the state it was in when it left the factory; it's a "fresh from the box" software reset. As with every other smartphone operating system, Android gives you the option to wipe your phone or tablet within the settings menu.
While the standard procedure is usually good enough, those with enough know-how can possibly dig up your old data, so you should consider encrypting your phone before resetting it if you're going to sell or donate it.
If you're just wiping your phone just to start over from scratch, be sure to backup the data and content that's important to you.
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