Before starting make sure that the mobile is off.

Remove the back cover with the opening tool, thus avoiding scratching the casing.

Remove the battery by pulling on the bottom.

Remove the SIM and micro SD cards.

Remove the 13 Phillips screws that hold the middle housing.

Use the metal spatula to loosen the plastic notches that hold the housing.

Release the plastic hooks with the metal spatula to remove the lower module.

Disconnect the cameras from the motherboard.

Disconnect the data cables from the screen.

Remove the motherboard.

Peel off the small antenna plate at the bottom. The curved tip tool is perfect for this.