I skipped this part as I found it difficult to do and almost made me damaged the entire cover when I tried inserting the screw driver head to the holes beside side it and prying the side part too. So I stopped trying. Ended up looping the adhesive around the screen careful not to touch the adhesive’s sticky side. (I replaced the adhesive along with the swollen battery. ) It was a success.

Note: I should have zoomed in the photo and now it makes more sense.