- Ensure the batteries are charged and working.
- Check the contacts of the battery. The metal contact points should not be obstructed with dust or other agents.
- Switch on your digital camera or mobile phone camera. Point your remote control at the camera lens and press any of its buttons. If the remote control is working, while looking through the camera you should see light being emitted from the LED.
Should you not see any light and the above steps have been followed carefully, it is possible that the remote control itself is at fault. If so, please contact Promethean Technical Customer Support with your product serial number.