Just got back home, and decided to check what Kev was saying.
Opened up backbox, pulled monitor and straight away saw this
Wires are VERY tight, had to pull the 2 connectors to the left of the loose one.
Pulled wires through to try and get the USB port back in, pretty fiddly.
Updated successfully! - Kev I know your phone isn't working, try again to reseat the USB connectors, push them right in. Mine kept springing out as wires tightly pulled.
People asking about the trap door.
Take a look down left loop, if your trapdoor is closed but still raised about 5mm it needs attention as reports of the black flap being snapped off.
First I pulled the playfield out, put my hand down the left side, and bent the trapdoor down slightly, this worked a little, only 3mm left! After fiddling around I decided that the bracket that holds the mechanism was either not positioned right, or slightly out on the bend of the bracket, this allows the plunger arm on the coil to push against the arm which pushes up the trap door.
I solved this by undoing the 3 screws that hold the bracket in, putting two washers under the bottom hole which increases gap between Mech and playfield. Retightened top hole, middle screwed back in but not tight. Trap door flush to playfield, opens and closes like a champ!