If you find that the Eye Guard prompt "To protect your eyesight, keep out of the projector light" is appearing too frequently, try the following options:
1. Update the firmware of the 4K dongle and Cosmos Laser to the latest version:
- Press the Settings button on the remote and select Settings > Device Preferences > About > System Update.
- Press the Settings button on the remote and select Settings > Device Preferences > About > Projector Firmware Update.
2. Remove any objects in front of the projector.
3. Place the projector between 5-13 ft (1.5-4 m) away from your screen.
4. Press the Settings button on the projector or the Source button on the remote, select Advanced Settings, and turn off Eyesight Protection (Eye Guard).