Android - My screen got broken, how to see on the computer what I'm doing in my device?

You don't have to continue working blindly, you can use Droid@Screen: it shows the screen of a real or emulated Android device on a computer running Windows, Mac OS or Linux.

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Droid@Screen is a stand-alone Java Swing GUI application that shows the screen of an Android device on a computer. Its author says that its typical usage is showing an app demo or during training, but it also fits your case.

In order to use it, you need the following to be installed in your computer:

  • Java 6 (at least)
  • Android SDK, installed and configured.
  • Environment variable ANDROID_HOME (or ANDROID_SDK_HOME) pointing to the Android SDK installation directory. (Optional)
  • USB driver for the target Android device installed.

Note: USB Debugging must be enabled on your device. (Thanks @JasonC for the heads up)

I have been using it with my Galaxy Nexus and I must say that despite a little lag between what happens in the phone and what is displayed in the computer screen (2-4 s), it does what it says. You don't even need to be rooted for that!

You can download it from the author's site, where you also can watch a complete video and text instructions about its installation and usage.