1. First of all, power down the phone. To do that, press and hold Power button.
2. Is the phone on? Then press & hold Volume Up and Power for a few moments.
3. Let go of all the keys when the Boot Mode activates.
4. To enter Recovery Mode, use Volume Up to select it Volume Down to confirm.
5. Shiny! You are now in the Recovery Mode.
6. Navigate it by using Volume Up and Volume Down keys to scroll and Power key to confirm.
8. Done.