Check the connections for your Xbox 360 accessories
If you’re having trouble with accessories, checking the connections may resolve the problem. Learn how to troubleshoot accessories issues by checking the connections.
Note Before you start, make sure the power supply is firmly connected and working properly. Check the power supply.
To check accessories
Turn off the console, and unplug the power supply.
Unplug all accessories connected to the front or the back of the console, including video cables, network cable, or USB devices. Do not remove the HDD.
Reconnect the power supply, and then turn on the console.
Reconnect each accessory one by one, start with a controller. Turn the console on, and check the console power button:
If the power button light is green, connect the next accessory.
Xbox 360 S console: If the power button light is red after reconnecting a specific accessory, it indicates the accessory is faulty and should be replaced.
Original Xbox 360 console: If there are flashing red lights around the power button after reconnecting a specific accessory, it indicates the accessory is faulty and should be replaced.
Repeat step 4 until you have reconnected all accessories.
If the power supply light remains green after you have reconnected all accessories, your issue may have been a loose accessory connection.
If you cannot determine that a specific accessory is causing the problem, there might be a problem with your hard drive. See Remove the hard drive.
If these steps do not solve the problem, please see the “Related Issues” section below or contact Xbox Support. For information about how to contact Support, see the Assistance section at the bottom of this page.