Déffectueuse series ???

By cons, concerning films for my iphone 4s, if the application was made quite easily, it was impossible to remove the 2nd protection film, the one that is supposed to be removed after the film installed, as well front Quà back.
I spent 3 pairs supplied without success, impossible to remove it all off ... without protection as to whether the protection is

When I put even 2 stars for the timeliness and deal (because my other phone is perfect)