Installation is as with all screen protectors not so easy, especially if you have a cell phone with "framework" has as it has the Galaxy S4 mini. So you can almost not exactly fit that form anywhere small air bubbles by resting on the frame, which also can not be weggestreift the film.
Somewhat misleading, I found that in the assembly instructions is you want (so earpiece, home button) remove all small stampings. This I have messed up the first film because I've tried manually remove the stampings and the film was verknickt thereby. In the second, I then found that the not necessary is because the parts go out with peel off the backing sheet by itself.