This guide details the removal and installation of the external power and volume buttons located on the right edge of the back cover.
Remove the two screws from the bottom of the phone with a T5 Torx Screwdriver.
Gently open the back case by prying along the edge of the cover, starting at a corner of the phone and circling around the phone using a plastic opening tool.
Holding the back case, gently push the power button in towards the center of the phone using a spudger.
To remove the volume button, push the button in towards the center of the phone using a spudger.