1. 4K Blu-ray player
2. BenQ 4K HDR projector
- Make sure the source output is set to 3840x2160 at 60 Hz
- Make sure the projector selects the correct HDMI colour range (auto, full or limited of RGB)
- Be sure to confirm the source player output.
- Make sure source output is set to 3840x2160 at 60 Hz
- Make sure the BenQ 4K HDR projector selects the correct HDMI colour range <br>   (full or limited of RGB).
- Also be sure to confirm the source player output.
3. 4K movies or 4K video
- 4K UHD Blu-ray sets come with two discs: one 1080p disc and one 4K UHD disc. Be sure to use the 4K UHD disc.
4. HDMI 2.0 cable connected to HDMI 1 port
- Not all HDMI cables can support 4K UHD resolution or HDR content. BenQ recommends HDMI version 2.0a/b or better yet, Premium High-Speed HDMI cables.