Cause of error code E69
Use our Flashing Lights Wizard. Choose one flashing light as the problem and follow the steps in the solution
Solution for error code E69
Try the following steps:
Disconnect and reconnect all accessories.
Remove the hard drive.
Remove any USB flash drives.
If the system error message is not displayed with the hard drive removed, your hard drive may be experiencing a hardware failure. Order a new Xbox 360 Hard Drive from our Xbox Online Service Center (sign in with your Microsoft account). Console registration is required to replace a hard drive under warranty.
If these steps didn't resolve the issue, you'll need to request a repair. Sign in to request a repair or see Getting your Xbox console or Kinect sensor serviced.