I was able to get the three screws off, but could not get the tab/clip on the upper left to release. I wasn't sure if the screwdriver should go over the tab "neck" or over to the right, where there was a small slot (hard to see). I assumed that the screwdriver went into the slot, but then I wasn't sure what I was trying to move when "pulling up". Also, FWIW, the upper right portion seemed pretty secure, so I'm not sure what was happening in that area.
On the first steps, I have small hands and it was not easy to get the three screws out. In fact, I was nervous that I wouldn't be able to get them back on at all, but I was able to work them in place and secure them. I had all the recommended tools.
I have some photos and will post them later, if they are additive to the originals.
EDIT: So I'm not sure that I got the correct three screws. I definitely had two correct, but maybe not the third. I FINALLY understand that the drawing from the manual is the "frame" that holds the trim piece. I think I had the two screws marked in green, but my third screw was higher and slightly inboard from the inboard green screw. It's hard to tell, given the tight area, but I would say that my third screw was somewhere in the blue box area and I may have missed the screw circled in red. That might explain why the tab wouldn't release and definitely fits with that part of the trim still feeling secured.
