Is anyone familiar with this particular bathroom fan? I am trying to replace the motor as it makes a humming noise when turned on but does not spin, but the motor plate seems to be firmly attached to the housing.
I've watched a few DIY videos and they all suggest that there should be a single tab located opposite the 2 tabs (in blue in the attached photo) which should release the whole plate with a flathead screwdriver, but (after unscrewing the single screw visible) when I attempt to do so, the plate seems to be firmly attached where the star icon on my photo is.
Editing to include a better picture.
With the screwdriver, I can wiggle around all sides of the plate except right where the star/under the model info sticker is - you can see the bit of the plate where I have tried to slide and turn the flathead in my attempts to release the plate from the housing. That corner does not wiggle like the other sections do, and I fear there is a screw behind that requires attic access.

