The screen of my Android phone sometimes automatically shutdown and cannot reshow again.

Can I shutdown my Android from PC or other ways?


2 Answers 2


You can do this with adb (Android Debug Bridge).

  1. Enable "USB Debugging" on the phone (Settings > Applications > Development > USB Debugging)
  2. Type adb reboot in a terminal in the directory where you installed adb platform-tools
  • Will it slow down the phone? if I enable the usb debugging in my phone.
    – lovespring
    Jan 23, 2011 at 9:50
  • 3
    @lovespring: USB debugging is only active when you plug the USB into a computer and adbd is active (i.e. you started adb in the computer), and in my Samsung Spica, there is no noticeable difference in my Linpack score when USB Debugging is "disabled" and "enabled while running Logcat" and "enabled but not running Logcat". YMMV.
    – Lie Ryan
    Jan 23, 2011 at 10:26
  1. Hold the power button down until it shuts off.
  2. Pull the battery out.
  • 1
    If I pull the battery out, the sdcard file system crashs, all file lost! This is why I ask this question.
    – lovespring
    Jan 23, 2011 at 11:41
  • 1
    That's not at all clear from your question.
    – Matt
    Jan 23, 2011 at 20:08
  • @lovespring Notice the order of the steps here. They are very important, and if you follow them completely, you should be safe.
    – Kevin M
    Jan 25, 2011 at 0:29
  • @Kevin The power button just shows a menu. from the menu I can select an item that shuts down the phone.
    – lovespring
    Jan 25, 2011 at 8:41
  • 1
    If you hold the button longer, it will initiate a shutdown.
    – ale
    Jan 25, 2011 at 19:01

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