1. Turn off the phone.
2. Now press'n'hold the Power & Volume Up buttons. Let go of it after the Bootmode icon appears on the screen.
3. Select Recovery by using Volume Up and Volume Down buttons.
4. Enter Recovery Mode by pressing the Power button again. As you hold it, press Volume Up.
5. Yaay, you are in Recovery Mode. Navigate it with Volume buttons; select options with Power button.