Resetting the Power Manager

Sometimes, when a new Power Adapter is purchased for a Mac, it stops working a few weeks after. Or when you borrow a friends Power Adapter and used it, then re-plug your own Power Adapter back in, you cannot get it to charge your  battery.  These can be very frustrating but, there is a simple solution to this quirky problem.  You simply have to reset the Power Manager Chip in your Mac.  Sounds much too complicated right?  Just follow the EASY step-by-step instructions below!

For a New MacBook Pro and MacBook Air  (with battery you cannot remove yourself):

  1. Shut  the computer off.
  2. Plug in the Power Adapter to an outlet, making sure it is then connected to the Mac.
  3. Press the Shift-Control-Option keys (all on the left side of the keyboard on the Mac) and the power button at the same time counting to 3.
  4. Then, release all the keys and the power button at the same time.
  5. Press the power button to turn on the computer.

For an older Mac (with batteries you can remove yourself):

  1. Shut the computer off.
  2. Disconnect the Power Adapter from the computer, if it’s connected.
  3. Remove the battery.
  4. Press and hold the power button for a full 5 seconds.
  5. Release the power button.
  6. Re-install the battery and connect Power Adapter to Mac.
  7. Press the power button to turn on the computer.

As long as your Power Adapter is not damaged like the end fraying, this quick fix may solve your problem.  Good luck!

Here is the link to purchase a new Power Adapter if this does not work.  Click on this  Apple Campus Store!




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