This was the most confusing step, because the video shows MJ just tilting the monitor open, and I had a ribbon cable hooked up to it. Finally figured out that the ribbon cable was connected to the LCD temp sensor cable, and it was neatly tucked under the adjacent fan. Had to pull it pretty hard to get it out from under the fan, and then could tilt the LCD. Instructions are not completely clear about this, only that you may have to reroute the cable around the motherboard.
This really was a disaster for me. The 2008 iMac 2210 was much more difficult to open, and I almost ruined the computer. I spent well over 3 hours just trying to work the instructions, and I am pretty handy with computers. I finally quit, and tried to follow the instructions to just quit, and when trying to restart, dead. I opened it again, rechecked everything, turned it on, and had a bad monitor picture (low resolution). Third time, rechecked everything again, and it worked, but the monitor now has a slight red shadow tint on one side of the monitor. So, never got the HDD installed, I'm returning it, and probably wind up buying a new Mac Mini. Be careful! And be willing to lose your computer, or pay to have it restored by a professional.
Yes, this step is very difficult. I finally used a magnet to magnetize the torx driver, and that helped immensely...however, that was AFTER I lost the right one inside the computer. You really only need one screw to reattach the monitor connector, however.