There is simply nothing ... then and now ... UPDATE

Even with my old phone years ago I tried this screen protector. Then as now: Only frustration. Even in clean room conditions and 100% dust-free cell phone interface I succeed not with great care to assemble this thing without dust inclusions.
It may be a different or the not matter if small bubbles and dust inclusions on the screen are, I would however like to without. I do not want to say that it is bad film per se, because people have determined some thought. Only it works in practice just does not or just happen that you get the thing mounted without dust inclusions with resulting bubbles.
After 6 attempts I give up in exasperation and just needs to live with the result. Finally, even the holes for speaker and camera not really fit precisely. Conclusion: The product does not fulfill its purpose for me.

Addendum: I got sent from Mumbi a pack replacement foil, thank you very much. The fit was better. And it actually worked in a total of 8 trial, completely apply the foil without any inclusions! My vote still remains a number of reasons in the mediocre range.

1) "100% bubble-free application and simple" I think in view of the complexity of the procedure ridiculous
2) "can be used multiple times": Theoretically yes, practically no. :)

Thanks anyway for the settlement and the reaction of the customer services. The records so ultimately from a good company.