Attaching not bubbles, not necessarily given maintenance at the corners

The touch functionality is not affected by the films. However, I have for two Tolino devices have three films wasted because the films can not be free of bubbles attach to the display, although I proceeded very cautiously and with tools for smoothing. On both screens, some bubbles are now visible, although minimized, but could not quite strikeouts. In one device, the film does not stop in one of the display corners, which makes them not really coming off what is considered "big bubble" but is visible.