The remote control doesn't work. What should I do?
Check the following:
Point the remote control towards the projector's receiver. Make sure you are within 19.7 feet (6 meters) of the projector and within a 30° horizontal angle and a 15° vertical angle from the projector's front or back receiver.
Dim the room lights and turn off any fluorescent lights. Make sure the projector is not in direct sunlight. Strong lighting,
especially fluorescent lights, may affect the projector's infrared receivers. Also, turn off any nearby equipment that emits infrared energy, such as a radiant room heater.
If you can't adjust the room lighting, you can turn off one of the remote receivers in the Settings menu. Make sure the receivers are not both turned off. See Customizing Projector Features.
Check to see if a button on the remote control is stuck down, causing it to enter sleep mode. Release the button to wake the remote.
If you want to use the remote control as a wireless mouse (or to move through presentation slides), make sure USB Type B in the Extended menu is set to Wireless Mouse. See Customizing Power and Operation. Also,
make sure you have connected the USB cable.