How to Lock iPhone and power off iPhone ?

IPhone goes on sleep after every certain period of time, by default it is 1 minute, but how to manually lock and unlock iPhone? It is very simple and handy in iPhone.

To lock iPhone press a button located on top mark by Red circle in Image 1, this will lock your p
iPhone immediately.

Image 1: Power and lock button

To unlock phone simply press same button or home button, then slider will display with message “slide to unlock”, slide to unlock iPhone

Image 2: Locked screen.

If you have set passcode then, iPhone will ask for passcode.

Image 3: Enter Passcode screen

In iPhone same button is use to turn off iPhone as well, if you press same the button and hold for around 2 to 3 seconds, then it will display red slider asking for power off phone. Sliding a slider will turn off phone.

Image 4: Turn off Screen

it is good idea to lock your iPhone to prevent unauthorised access and specially from childrens.