Issue with 48x30 and the laser

Look at the video at

16:57

Thank you,

Although the video is showing the unboxing of the 30 inch. I will double check the box for the 48 inch I did not see the blue cable when I pulled the parts out of the rail. I put everything back in as it came out and it is possible that I missed it. I will go do another look in the morning tomorrow. Again Thank you