1. Get a pin with a sharp head. A sewing needle will do fine.
2. Wedge the pin under the top corner of the screen.
3. Apply pressure, and lift up the corner of the thin plastic screen (it is stuck down with some "re-positional glue").
4. Take a card (any plastic card like a credit card) and place it under the corner you just lifted from the screen. Slowly slide the card downwards, then left. Continue all the way around the screen.
5. Use a good quality cloth to clean the screen of the V3, and the plastic screen you just removed.
6. Position the plastic screen back into place, and apply firm pressure for a few seconds.
Be careful. Don't be too rough with the screen. It can bend quite a bit, however it does have a breaking point.