Hi,
You can reset your camera's setup and shooting options to factory default, (Date, Time, Language and Video Output settings do not change).
Go to Menu > Settings 1 (gear wheel with 1 in box) > reset > Yes or No.
Performing a firmware update will perform the same function as the above reset procedure.
Here is a link to the user guide describing the reset function. It starts on p129 and carries over to p130.
http://www.manualslib.com/manual/416447/Samsung-Nx1000.html?term=reset&selected=8&page=129#