Remove the screen.

Remove any remaining adhesive from the midframe, and clean the glued areas with isopropyl alcohol and a lint-free cloth.

If possible, turn on your phone and test your repair before installing new adhesive and resealing the phone.

The best way to secure the new screen is with a sheet of custom-cut double-sided tape, but high bond double-sided tape will also work. Apply the tape to the back of the screen, then carefully feed the display cable through the frame. Align the screen with the frame and press it into place.