1. Press Power button until the phone turns off.
2. Next, press and hold these buttons simultaneously: Volume Up & Power. Release them after the Boot Mode pops on-screen.
3. Enter Recovery by using the Volume Up. Press Volume Down to confirm your choice.
4. Enter Recovery Mode by pressing the Power button. Press Volume Up just once.
5. Yaay, you are in Recovery Mode. Navigate it with Volume buttons; select options with Power button.