How to fix open tray and unrecognized/unreadable disc errors. This works 8/10 times. If you follow this step by step tutorial you will more then likely find out what is wrong with your disc drive. How to tell what dvd drive your xbox 360 has. Take your faceplate off and right below where it says xbox 360 on your dvd drive there should be a little hole. below dvd right above memory card port 2. Black plastic over hole - Hitachi GDR 3120L Red Wires - Toshiba/Samsung TS H943A White Wires - BENQ VAD 6038 Yellow Wires - Phillips Light-On DG 16D2S If yours has yellow wires it is a lite on and you should follow this guide as i am repairing a light on. The pot you want to adjust is on the right when your holding the dvd drive tray up and front of tray facing you. once you turn it over or flip it to where the backside is facing you it will be on left side. Good luck. (: