Xbox 360S Troubleshooting
solid (no error): unknown problem. Go and try Xbox 360 S Motherboard Replacement
solid (error): it depends. go to http://xbox-experts.co.uk/errorcodes.php
Your HDD has deformed shape, or the xbox 360S has deformed shape
Is your xbox on?
Please ensure your xbox is on.
Try replacing your fan
Bad logic board
Try replacing your logic board