Dell Precision 5550 Wake and Power State Failures

Verify the failure by attempting to wake the system from sleep or hibernation. Confirmation of the symptom includes the device remaining on a black screen, failing to respond to keyboard or power button input, or unexpected system reboots after a sleep attempt. Check for LED error codes on the front indicator, such as an amber-white blink pattern, which signifies that the system hardware has failed to successfully complete a power state transition.