1. First, turn off the phone.
2. Is it off? Then press and hold both Volume and Power buttons until an Android logo appears.
3. A new menu will open. From it - using Volume buttons to navigate the options and Power to select the one - choose Recovery
4. Lastly, press and hold both Volume buttons and press and release Power button until the Recovery Mode menu opens.
5. Well done, you are now in Recovery Mode. Navigate it using Volume buttons to scroll through the options and Power button to select them.