Use a spudger and your fingers (or tweezers) to scrape up and remove all the old screen adhesive from the perimeter of the frame.

Use tweezers and a spudger to remove both speaker meshes from the frame.

If you're reusing your screen, repeat the process to remove any of the old screen adhesive from the perimeter.

To prevent damaging your screen, press gently with the spudger and make sure nothing is under the screen while you work.