1. First, turn off the phone.
2. Next, press & hold Volume Up + Volume Down + Power key for a couple of seconds.
3. You can remove your hand from buttons as soon as you see a menu with two options.
4. Now press Volume Down to scroll to Recovery option. Confirm your choice by pressing Volume Up.
5. If you did everything alright, you should be in the Recovery mode now.
6. Recovery mode can be navigated by Volume buttons. Options are selected by using the Power button.