Acer MS2133 User Manual page 23

2 Press and release the screen support holding the display screen on
both sides.
3 Rotate the display screen 180 degrees clockwise as shown in the
illustration. Make sure that the display screen is aligned with the
screen supports that will hold it in place.
Warning: Rotate the display screen clockwise only when
switching to the tablet mode. Rotating the display screen
counterclockwise might damage it.
13