Instructions
Power on your Xbox 360 and locate the disk drive on the left side of the front of the device. Press the eject button and hold it down for a few seconds. If this doesn't fix the problem then proceed to Step 2.
Tap the top of your Xbox firmly with a closed hand three or four times. This method works to solve any loose connection issues. If your tray is still not functioning after this attempt then proceed to Step 3.
Locate the small circular hole just under the right side of the disk drive. Insert the tip of a toothpick in the hole and press in firmly. At this point your disk tray will pop out and be working as good as new.