You will notice the Black Adhesive, all of this has to be removed from the device before applying the new display.

Now it's time to apply the new Touchscreen Display, ensure the Flex Cable is out of the way and that the LCD and inside of the Touchscreen has had all the dust particles removed, once you apply the Touchscreen it's permanent until you re-do all the previous steps to remove it again, so be very very very careful and thorough.

Apply the touchscreen quickly once the adhesive protectors have been removed and the device is clear of dust.

Press down around the bezel of the screen to smooth out the adhesives bond.

Now flip the device over and reconnect the Touchscreen Flex Cable, and Power Connector, once both are reconnected, re-apply the green sticky covers to the connectors for protection and then load the device back into the back casing.