You receive error E78 on your Xbox 360 console

You see an error message like the following when you use your console:

System Error: Contact Xbox Customer Support

Error code E78

This means there may be a problem with your Xbox 360.

• Original Xbox 360 console

Try our Flashing Lights Solution. Choose one flashing light as the problem and follow the instructions in the solution.

• Xbox 360 S console

1. Disconnect and then reconnect all accessories. Need help? See Check the connections for your Xbox 360 accessories.
2. Remove the hard drive. See Add or remove an Xbox 360 Hard Drive.
3. Remove any USB flash drives.

If these steps don't resolve the problem, you'll need to request a repair. Learn how to request a repair.

Repair or warranty questions? See Xbox 360 repair: Frequently asked questions.