First of all we must extract the ten Allen screws (1.3) that are located on the sides of the phone.

Once the screws are removed, we can unhook the back cover.

Remove the three Torx screws (T4) that hold the shield and the upper antenna, and we can unhook them.

We disconnect all the flexes that are connected to the motherboard, the coaxial cables, and we will remove the tray from the cards.

We remove the Torx screw (T4) that is in the area of the coaxial cables and we can now lift and remove the base plate.

With the help of a flat tool we take off the shield and the flex that we are going to change.