The 4-pin push connector for the sub-woofer is near impossible to reconnect
It mates with a female connector that sits on top of 4 tiny solder points (it's held on by a spot of glue, I believe), and when applying ANY pressure to connect, the side clip(s) will snap off. Then the connector itself will become unglued. It would be simple enough to connect the 2 parts, then place a drop of glue on the logic board after positioning it above the solder points, but the female connector broke apart in my hand. So now screwed, with no way to connect sub/ R speaker without installing another logic board. Fan connector looks to be exactly the same