IPhone screen by pressing Home and Power together, lol (1 button + button 2) this can be used either on the iPhone or iPhone 4S 4/5, including iPod, iPad, they use methods to press this with it.
Save screen by pressing the "Home iPhone.") and Power simultaneously (1 button button 2) under the able ใช้ได้ทั้ง on iPhone 4 / 4S. Or iPhone 5, including iPad iPod is used to press this too