If you find yourself not liking your established Gmail address — but don't want to get rid of it — making an alias might be a good idea.

On top of potentially solving software issues, a reset is necessary if you’re giving or selling a used Mini to someone else. The device will otherwise be linked to your Google account ...

To perform a soft reset, restart your Android phone (press the volume ... the phone asks for your passcode and Google account credentials when it restarts. This is why a factory reset is required ...