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Hi, I bought a Macbook air from 6/2017 (A1466) used. If I shut down the Mac it will not turn back on. Only with separation of power and battery, he can go up again. When restarting the problem does not appear. Not even at standby. What is broken ???

German: Versuchen Sie, die SMC zurückzusetzen So setzen Sie den System Management Controller (SMC) auf Ihrem Mac zurück Können Sie uns eine Momentaufnahme des Hauptfensters von CoconutBattery im Anschluss an diesen Adding images to an existing question English: Try resetting the SMC How to reset the System Management Controller (SMC) on your Mac Can you give us a snapshot of the main window of CoconutBattery following this Adding images to an existing question