An extra step needs to be added. the 1.3 millimeter Phillips head #00 screw retaining the antenna to the frame needs to be removed and then the antenna removed.
One of the standoffs are not magnetic. I'm not sure which one, I assume it's the one on the top.
Be careful around the bottom corners and edges, that you don't put your guitar pick in to deep and break a pin off the logic board.
As far as I can tell the info on this slide is nonsense.
Starting from left to right, as pictured here, by size.
1st is 2.0mm.
2nd (orange ) 1.8mm
3rd ( yellow ) is 1.46mm and cannot be used anywhere else.
4th and 5th are 1.5mm
Note 1st, 4th and 5th are circled in red but are not the same size.