If you updated your Xperia Z to Android 4.2.2 then your screenshot not available any more when you hold the power button whether you are a blogger taking a screenshot of your Android apps or just someone that wants to share some Android screen setup to your friends, taking a screenshot of your Android phone's screen can be a bit confusing. While Android 4.0 (Ice Cream Sandwich and Jelly Bean) offers a built-in way to take a amazing screenshot.