We will start by removing the back cover. To do this we will introduce a spike between it and the frame to unhook the notches that hold it.

This casing is very well fitted, probably more force than skill is needed. : P

In this step we remove the adhesive that covers the battery and the nine Phillips screws (PH # 00) that hold the motherboard.

Once we remove the screws we can remove the shields covering the connectors.

Now we will disconnect the components to be able to remove the motherboard. We start by disconnecting the coaxial antenna cable, the battery and the flex from the digitizer.

Now we disconnect the flex from the LCD display and then take off the flex from the side buttons of the phone frame.

To finish, we disengage the vibrator and the rear camera.

We will also have to disconnect the bottom plate of the motherboard. To do this, we will lift the plate as shown in the last two images.

Now we will raise the plate to release it from the notches that hold it.

Finally, we will desoldaremos the flex of lateral pulsadores.Primero, despegaremos the stuck part and to facilitate the process, we will apply a little of tin that will help us to distribute better the heat in the pins at the time of desoldar.

When finished, we will clean the components well using the desoldering mesh and the flux remover.

It is not absolutely necessary to remove the motherboard to remove this component, you could desolder directly from the phone.