MacBook Pro screen goes dark

MacBook Pro screen goes dark I've had my MacBook Pro for two years now; no problems so far (it has had 3rd party RAM from the get go).
Asked by: Guest \| Views: 273

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Guest [Entry]

"Take out the battery, and unplug it from the outlet. It could be that the machine has gotten into a bad state the SMU has become confused.

Once you remove the battery & external power, hold the on switch for 10-15 seconds...

Replace the battery and see if it turns on, and works properly...
If so, go ahead and plug the power cord back in..."