How to fix the xbox 360 slim 250Gb open tray error Basically the adheasive that the producing company put on the screws has come loose and thus the screws that ajust the xbox 360′s lens have loosened and unleveled the lasor. So now you need to levelit back out just take our time and try to get it as level as poosible then test it tell you get it working. Pm me if you need help or if it is not working for you. PS i also to repairs myself so PM me if your interested in having me fix any of your xbox problems I work on all consol models.