Feed the battery connector through the hole to be able to flip the mother board up toward the top of the camera.

2 connectors on front side of motherboard are friction-fitted.

When reassembling, I initially tried to put these cables on with the motherboard in position to avoid having to feed the battery cable through with these 2 cables connected, but it turned out much easier to connect these cables first with the motherboard flipped up then flip the motherboard into place feeding the battery cable through.

1-wire Wi-Fi antenna connector is friction-fitted. (on reassembly, I connected the WiFi cable first, then the other two front-side cables before flipping the motherboard down into place).