Essentially im ecstatically happy with my z2, except the headphone port seems faulty. While driving i use the 3.5mm jack on the z2 to connect tk the car.
This is when i noticed the faults with the headphone port. If i insert a 3 or 4 pid connector, either a 3.5-3.5 cable, a standard 3pin headphone connector, or a 4 pin headset, a slight nudge on the connector disconnects the headphones/cable and music stops. Sometimes, google now gets triggered as well. The same things happen if i twist the jack, whatever is connected. It also seems quite loose, and there is no positive click when a jack is inserted.
I would upload a video showing what happens, but my only video camera is in my z2.........
It has also not been submerged/wet at all, and is kept in a case (i tested the jack without the case as well, but it still happens)