1. Turn off the phone by pressing and holding Power button.

2. Press-hold the Power and Volume Up buttons. Release them when the Boot Mode starts up.

3. A new menu will open. From it, select Recovery. To do that, use Volume Up to scroll to the option and Volume Down to choose it. 

4. After the Android icon shows on-screen, press Menu button to enter Recovery Mode.

5. You can navigate here with Volume buttons; select options with Home button.