Step 27. Reassembly. Test the connections by dry fitting the front glass to the chassis prior to removing the white adhesive strip protection. Power on the unit to ensure the LCD panel powers on and that the digitizer functions. Power the unit down. Remove the clear front glass protector from the rear of the glass. Then proceed to perform the final install by removing the white adhesive protection. Seat the front glass. Remove the protective cover from the front of the front glass.