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How can I shutdown my Android phone using an adb command?

Solutons:


Try adb shell reboot -p to shutdown the phone.

Note: All the following commands below require root access.

On Android Oreo, this works and does a graceful shutdown:

adb shell su -c 'am start -a com.android.internal.intent.action.REQUEST_SHUTDOWN'
adb shell su -c 'am start -n android/com.android.internal.app.ShutdownActivity'  #alternative; the aforesaid intent is supposed to be passed to this component under normal circumstances, but calling the component alone works too
adb shell su -c 'svc power shutdown'       # alternative; tested on Android 5.0, 6.0.1 and 8.1.0

Following is an alternative and is tested on Android 4.2, 5.0 and 6.0.1. I do not know about Nougat but it doesn’t work for Oreo though.

adb shell su -c 'am start -a android.intent.action.ACTION_REQUEST_SHUTDOWN --ez KEY_CONFIRM true --activity-clear-task'   # I kept this here for historical purposes only.

For low-level and instant shutdown

If you’re running Android KitKat or above* and have root access, you can try this command:

adb shell su -c 'setprop sys.powerctl reboot,recovery'
  • replace su -c with adb shell to run the command using adb
  • replace reboot,recovery with reboot to reboot the device
  • replace reboot,recovery with shutdown to shutdown the device

* The last version on which the command is tested upon is stock Android 6.0.1.

here is an another method, go to android shell then shutdown the phone!

adb shell
shutdown

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