I’ve noted several times that iPhone is an easy to use device. However, sometimes, cool iPhone functions are difficult to discover. But once you’ve discovered a specific function, you’d love using it. Beginning from firmware 2.x, making screenshots on iPhone has become extremely easy. As a matter of fact, I have not seen making screenshots to be easier on any other device. The best of all, you won’t need a special application. The functionality is built in your iPhone. So, let’s start.
I assume that you’ve already opened an application that you’d like to make a screenshot of.
Now, simply press and hold the Home button (shall I mention that this a button at center bottom of the iPhone?), then press and release the Sleep/Wake button (the one on top right of the iPhone).
Your iPhone will flash briefly and the screenshot will be added to your camera roll.
You can now open the Photo application and view the screenshot there.