To begin we must extract the tray of the cards.

Unhook all edges with the help of a fine tool.

We extract the seventeen Phillips screws (PH # 00) that hold the intermediate casing, and with the help of a flat tool we will unhook it from the chassis of the phone.

We disconnect all the components that are connected to the motherboard.

We extract the motherboard.

To finish, helping us with a fine enough prong we will take off the handset that we have to change.