1. Press & hold the Power button until the phone turns off.

2. Then press & hold the Volume Up + Power buttons for five seconds.

3. Let go of them when the Boot Mode starts.
4. Select Recovery using Volume Up and confirm with Volume Down.

5. Press-hold Power for few seconds in order to open Recovery.

6. As you hold Power button, press the Volume Up.

7. Navigate Recovery Mode with Volume & Power buttons.