To remove the back cover, we will detach it by inserting a spike between it and the frame. To make the task easier, we can heat the lid for approximately one minute at 60ºC.

We extract the screws indicated in the second image to be able to remove the intermediate casing and the lower antenna module.

In order to remove the motherboard, first disconnect the components.

Remove the screws that hold the motherboard and the SIM and SD trays.

Now we can remove the motherboard.

To unstick the screen, we introduce an opening tool between it and the frame. Sliding it around the contour, we will take off the screen.

To facilitate the process, we can heat the screen to about 60ºC for about a minute.

To finish, we took off the flex of front buttons.