First of all we must remove the tray from the cards.

Remove the two Torx screws (T3) that hold the back shell, and with the help of a tool we will unhook all the edges of the casing.

We extract the seven Phillips screws (PH # 00) that hold the module and with a flat tool we will unhook it. And we desconextamos the interconnection flex to be able to remove the battery later.

Remove the Phillips screw (PH # 00) that holds the lower shield.

We disconnect the damaged battery, and pull the stickers that protrude from the upper part of the battery and thus we will be able to detach it.