Just don't do it! Like is says at the beginning, if you use a mild solvent like isopropyl alcohol, you can skip steps 6 - 45. My battery was pretty swollen and had already partially detached itself, so a little alcohol and some working with the plastic cards was all it took to get the battery freed up. Saved a lot of risky work!

Like James Lee (above), I found reinserting the tiny screws quite difficult because the magnetic screwdriver would pull them out, with the screw adhering to the screwdriver at odd angles. What worked was to insert a screw with tweezers, then START the screw using the non-magnetic plastic pointy tool while holding down the plate so the screw could turn easily. Once the screw was started, I tightened it with the screwdriver.