You can reset most of the projector settings to their default values using the Reset All option on the Initial/All Settings menu.
When you select the Reset All option, you see this screen:
Checkmarks appear next to the menu settings that are
selected to be reset. If you do not want to reset settings in some
menus, deselect them. When you are ready, select Execute and press 
Enter.
You cannot reset the following settings using the
Reset All option:
- E-Zoom
- Digital Zoom
- Image Shift
- Language
Note: See the
link below for details on updating the projector's firmware.