I think my problem is more electrical. I dont have any problems getting the door to close or latch. It's more like the door had a few millimeters of play left and right when closed. Because even when I do get the unit working and running if my hand even lightly touches the bottom door the unit will shut off completely. I've tried probably 6 or 7 different battery brands and same story all around. It only started doing this a few weeks ago. Worked perfectly for the first months.