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The Power Button Trick


By marv - Posted on 23 September 2009

A few days ago a colleague of mine was shocked to see that his MacBook Pro no longer booted correctly. He called me over to his desk to show me the hopeless situation: Just as the MacBook seemed to boot, it shut back down. It reminded me of the situation I had experienced a few months earlier when my iMac showed no reaction to pressing the power button whatsoever - as if it was not plugged in. A similar thing happened to my Netgear router, which did not seem to switch on when plugged in. Luckily the solution to all of these problems is simple, yet not widely known.

So if you have an electronic device that seems to be misbehaving (and you have ruled out that it is a software problem), follow these simple steps:

  1. Unplug the device (remove any other cables plugged into the device as well).
  2. Hold down the power button (or on routers the "reset" button) for at least 10 seconds.
  3. Plug the device back in.
  4. Voila! You're good to go!

By holding down the power button you are basically causing the power controller to reset. This may vary on some devices, so Google is your friend.

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