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Original-Beitrag von: mayer

Original-Beitrag von::

Reset the SMC

1.  Shut down the computer.

2. Disconnect the MagSafe power adapter from the computer, if it's connected.

3. Remove the battery.

4. Press and hold the power button for 5 seconds.

5. Release the power button.

6. Reconnect the battery and MagSafe power adapter.

7. Press the power button to turn on the computer.

Leave it plugged in for about 30 minutes in case the battery is fully drained.

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