For a video game system, the Xbox has relatively few serious problems that make it unusable. These are the most common problems:
Disk drive won’t open/shut or makes cranking noises
Something Could Be Stuck in the Drive
You can try to manually open the drive with a straightened paper clip. For most Xbox disk drives, the hole is located to the left of the eject button. Press the paper clip into this hole to pop the disk drive out. If this does not open the drive, you may have a Phillips drive, and the hole you need to use is located under the Xbox logo on the drive. Once you open it manually, remove any obvious obstruction, and clean the drive.
Damaged Disk Drive
If your eject button still doesn't work, the disk drives may have worn out over time. There are Microsoft Xbox Disk Drives available online, so the best option is to simply replace it.
Blinking Light Codes
Solid red: overheated.
Flashing green: bad bios load.
Flashing red-orange: bad video output
Flashing red-green: system faliure (can be alot of things)
Chronic disk reading error
Try as you might, you can't get your Xbox to read your beloved Halo 2 game disk.
Bad game disk
The problem may be with your disk instead of the drive. Make sure the disk is not damaged, and try a few other games if they are available. If none of these work, read further.
Dirty disk drive
Try to remove the disk drive and very carefully clean the lens and mirror. There are Xbox CD cleaning disks available for those who don't wish to brave the guts of their Xbox.
Bad disk drive
If cleaning the drive doesn't fix the problem, the disk drive may have been damaged. If this is the case, you will need to replace it.
Xbox doesn’t turn on
"If you do not receive any power on your device. "
There was a recall on Xbox Power Cords that caused the Xbox not to get power. If you have a newer Xbox, this is probably not an issue.
Xbox Not Plugged In/Faulty Outlet/Dead Power Adapter
Make sure the device is properly plugged in, and attempt to plug in to different electrical sockets. If this doesn't work, you may have a faulty power adapter.
Xbox has power but won't display the dashboard
Damaged Logic Board
Due to overheating or abuse over a long period of time, the logic board may have been damaged. If this is the case, you will need to replace it.
Xbox freezes mid-game
You were five minutes from the epic ending of your favorite game, and it suddenly freezes.
This is usually a sign of overheating. Make sure your Xbox is in a well ventilated area, and its vents are not covered. Turn off the device and allow it to cool. Then try again. If the problem persists, you may want to open the device and clean the dust off the heat sinks and logic board.
Bad logic board
After excessive and recurring overheating, the logic board may flex, causing damage to solder joints. If this is the case, slight heat and cause game-ending effects. If this is the case, the logic board may still be salvageable if you are a crafty solderer, otherwise, you will need to replace it.