First we must unhook the back cover, for this we will use a flat tool.

Remove the eleven Phillips screws (PH # 00) that we indicated in the first picture, take off the fingerprint reader, and underneath we will find another screw just like the previous ones, and using a flat tool we will unhook the intermediate housing.

We disconnect the battery to work with greater security.

We take off the adhesive that is located above the flex of the side buttons, we also take off the area of the buttons with the help of a fine tool, and we can already desolder the flex that we have to replace, being careful not to damage any component of the plate base.