once the battery is out, you may also need to remove the sleep sensor/battery indicator and move it to your new case if it didn’t come with them. mine didn’t, so i had to do so…it’s secured by three screws (i believe phillips) and some adhesive. the battery indicator button was loose on mine and just fell out when i removed the board, so be careful not to lose it.
the sleep sensor/battery indicator were not included with my new case, i had to transfer them over from my old case. once the battery is out (step 22), you can see the three screws you need to remove in order to take it out. it’s also secured by adhesive. the button for the battery indicator will likely fall out (at least it did on mine) when you remove the board, so be careful not to lose it…my new case did come with the button for the battery indicator (even though it didn’t come with the board or cable), but i just re-used the old one.
my new case came with the set screw already installed, and i couldn’t loosen it. i didn’t want to strip it and cause a bigger problem, so i left it alone. the trackpad seems to work fine so far regardless, although i may take the bottom case off and play with it a little if i get a chance.
i also (just like Ron) had to move the trackpad clips, battery indicator and center bracket to the new case. they were not included.
i also had to remove the plate with the antenna underneath to transfer it to the new case. there is an additional screw you need to remove in order to do this (you can see it just to the left of the index finger on the hand in the picture), and it was also attached by adhesive. i removed the screw and then used the spudger to get under the plate and loosen it from the adhesive.
unlike the previous commenter, there was a screw hole on my new case to re-attach the antenna plate (in addition to the adhesive).
tip: not only start at the end closest to the display, but start as close to the optical drive slot as you can get. i had to get way back there in order to get underneath the speaker to pry it loose.
when reattaching the display cable, i used the spudger to tuck the spongy top flap underneath the cable lock, so that i could then get the cable lock down the entire way. i couldn’t get it under there (and get the lock closed) without it, the top part of the display cable blocked it.