If your Android device's screen has suddenly turned black and you can't get it to turn on again, there are many possible causes and several fixes.

If the home screen of your Android smartphone appears blurry or out of focus, here are a few things you can try before you take it to a technician for repair.

My phone has suffered from this problem for months, but I finally found a fix which involved replacing the Android home screen launcher with third-party software available on the Android Market.