This black cover (thermal diffusor?) is glued onto the battery with a very thin layer of adhesive.

Remove the cameras from the motherboard, then lift the black cover over the motherboard to expose the battery and LCD connectors.

Disconnect them, then remove the 2 screws that hold in the motherboard.

I used to mark these (to remember where they go), but I've noticed they're pointed to by 2 very small arrows on the motherboard.