[1][2] Demo mode is usually activated by retail stores on their consumer electronics floor models.
[3] The purpose of a demo mode is threefold: The central idea behind a demo mode is in-store advertising, preview or premiere of the product.
[4][5] The demo mode is present in phones, microwaves, TVs and other consumer electronics.
The demo mode may not be installed at all in the actual product, only as a floor model exclusive.
The demo mode itself may be a small video showing the features of the phone or a special version of the operating system (like on the PlayStation 3).