2001 Xbox-Whenever I put in a disc it says it pops up error

Hello everyone. I am having a reading disc trouble with the Original Xbox system. Whenever I put in a Xbox disc this pops up “ This is a Xbox game disc. Please put it in your Xbox to start playing” like if you were to put a Xbox game in a PlayStation system. When I put in a DVD it doesn't play the screen just goes black. So it only plays CDs. And Lego star wars the demo on a DVD special. Won't play the movie though. I have tried different Xbox games, I tried flipping it upside down to blow a can of air into the disc reader lens. I took it apart to clean just the lens. Any more tips or Ideas? Thank you in advance. UPDATE I learned that the laser could start not giving enough power to read the disc I put in. So following Youtube I took apart my Xbox to where I could use a miltimeater. Than useing a screw I adjusted it for more power. The youtube video said to keep raising the laser in small amounts so it doesn’t burn out the lens. As I was doing so now the CD drive keeps wanting to open even after I hit the button to shut the CD drive. Any thoughts guys?