When you go to replace the bezel, look at the back side and disconnect any of the little snap-on tabs that may not have stayed in the metal bracket around the LCD. On a white MacBook they were grey, about 4mm x 8mm. They work best if you put them into the metal frame separate from the bezel and then snap the bezel into them.
The best way to remove them seemed to be by placing my thumb over one edge (so they didn’t fly off) and prying with a thin, flat screwdriver flat against the bezel tab.
If you don’t have the c-channel it seems you can skip steps 24, 25, and 26.
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