After I ordered sequences of another brand and have the ever fitted tightly I am again switched to Mumbi. The films I had already for other mobile phones and they have always (!) Fitted. Millimeter precision! Which was not the case with the other. They were determined around 2mm too small. Bubbles I have none. You must clean the screen thoroughly and then apply the film. Then you have, of course, bubbles that can then but can strike out with a fingernail, for example. Always the display edge. And then all the bubbles are gone. Three because namely still forget a speck of dust on the display. Since then remains the bladder, and also does not go away. Therefore: Before cleaning the panel, thoroughly and dust! Super films!