Error E77 is displayed when you use your Xbox 360 console

The following error message is displayed when you use your Xbox 360:

System Error: Contact Xbox Customer Support

Error code E77

This means there may be a problem with the Xbox 360 console.

• Original Xbox 360 console

Use 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. For more information, see Check the connections for your Xbox 360 accessories.
2. Remove the hard drive. If you need help, 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.