PS: comments are from original author (mine arrived safe and sound, with its auto-focus gear still properly attached, thanks to Philips own fix )
Screws to remove the mainboard are highlighted in green. The two on the right side closest to the battery cable hold in another cable.
Connectors are highlighted in red.
This gear is held on with a small dab of glue. It has a lot of room to come off and rattle around inside of the case. I fixed my focusing issues by reattaching the gear and inserting some small pieces of cardboard that will prevent the gear from slipping off again, but still allows it to spin.
The gear is keyed to go on only one way.
“With great power comes great responsibility”
Bottom of mainboard.
From the looks of it, the 2+16G indicates the two RAM modules next to that are 16GB each instead of a single 32GB chip. Possibility of factory upgrades later in the lifecycle.
Top of main board