The product's buttons don't work. What should I do?

• The projector's buttons may be locked. Press and hold the volume down button on the projector's control panel for approximately seven seconds to unlock them. A message appears on the projected image to let you know the buttons have been unlocked.

  Note: You can also unlock the projector's buttons by using the remote control. Press the menu button on the remote and select Settings > Operation > Child Lock > Off.