Use the small flat-head screwdriver to scrape the glue spots off the retaining posts on all four corners of the speaker to be removed. (Right speaker shown)

Be careful when scraping the glue spots off to avoid damaging the logic board.

When reassembling, mix a small amount of 5 minute epoxy and apply it to the four retaining posts. Wait the full 5 minutes for the epoxy to harden before continuing with your reassembly.