First we must apply heat to the back cover, we have used a thermal mat, and with the help of a tool thin enough we will open a hole and so we can introduce one or more spikes, with which we will take off all the edges of the housing

We take off the adhesive that is above the connector, and we will disconnect it and so we can work with greater comfort.

We remove the eleven Phillips screws (PH # 00) that hold the intermediate housing, including the screw that is half hidden that we point out in the fourth photograph.

We disconnect the battery to work with greater security.

To finish, we just have to take off the headset that we have to replace.