First, use a plastic pick to remove the plastic battery shield being careful not to tear the plastic.

Remove the two (2) M2.5x4mm Philips screws from the top where indicated.

Remove the single (1) M2.5x3mm Philips screw where indicated.

Remove the two (2) M2.5x16mm Philips screws from the bottom left by the battery. When removing the left screw (indicated by the arrow) make sure to save the plastic spacer underneath.

Remove the two (2) M2.5x6mm Philips screws from the bottom right securing the HDD connector.

Use caution when removing the shield as the speaker cable will still be connected.

Disconnect the speaker cable from the Audio Board. You can then remove the Main Shield and set aside.