Up for sale is a Barco Reality Projector remote in very good to excellent condition. This is the original remote that was supplied with models 6300 6400i. This remote has been tested and is working. Please feel free to email me with any questions you may have. Thanks in advance for your purchase. Please Note** All Remotes are tested before listing and again before shipment. I do not sell remotes that do not work and then offer free returns. That would be ridiculous. Most likely the issue is with your IR sensor on the unit itself is not working. If you need to determine if the issue is your remote or your IR senosr, please email me.