A:Answer Hi Janka, please make sure that your projector is on the correct input source. If your HDMI Cable is plugged in to HDMI 1 port on the projector, input source should also be set to HDMI 1. You can do this by pressing the source button on the projector's remote. If this doesn't work please feel free to call our customer service hotline 1-833-909-2673, Mondays to Fridays from 9am to 5pm PST. Or email us at support@dpaudiovideo.zendesk.com. Hope to hear from you soon!