Easy way to take screenshot on android 4.0 (Ice Cream Sandwich or Jelly Bean) and above Volume down and power key combination. We can take screenshot by holding these two keys for 3 to 4 seconds at same time. This screenshot will save auto in gallery folder. On some phones such as Samsung S3, S4 and S5 you will need to press home button also to take screen shoot.
Select Take screenshot option to take pic behind this menu.
How to Take screenshot On Android 2.3 Or Below
Taking screenshot on android 2.3 or older not easy. we have to install third party app enable this feature.
Devices running on older version of Android does not have screenshot taking capability built-in OS. So, manufacturers has to develop their own technique and push it into the devices. We have seen different shortcuts on different devices. For example, on Samsung Galaxy Note and Galaxy S II (pre-Ice Cream Sandwich versions), you can press the Home and Power buttons at the same time to take a screenshot. On the Galaxy S, press and hold the Back button and the Power button, or try pressing the Back button and double-tapping the Home button. Here is a details guide: How to take Screenshot with Samsung Galaxy S without Rooting, no PC. You may have to do some search on google to find out screenshot shortcuts with your device model and manufacturer.
There is also some Android Apps available on Google Play Store which allows to take screenshot on specific devices without rooting them. Such as, Samsung Galaxy S, Galaxy Tab, and Galaxy S II (pre-ICS) users can use Screen Capture Shortcut Free to capture screenshots without rooting their phones. Another example of a device-specific app is AndroSS, which can take screenshots on Android without root access on Tegra devices. You may search on play store if there is an app for your device which will do the job without root access.