I just installed this protective film and thus could not judge the time about its quality. By cons I can say that it is simple to install, all you need is provided (old cloth, alcohol wipe and dust-proof film) No bubble after installing it is very nice and exchange of conventional plastic films For those who ask the question on the kind of sticker provided and function, it is there to remove the last dust before laying. Here's how: - Dry clean your phone with the supplied dry cloth as you clean your pair of glasses for example - Then clean the screen with the alcohol swab - Wipe the alcohol remains by making regular crossings a single pass without going back and forth bringing the dust in the cloth on the screen. - Peel off the kind of sticker (plasticized film) and pass it repeatedly to remove the last dust - Remove the protective film on the glass then place your glass lining on the edges of the LCD screen (visible part of the display) to the width and the headphone and camera hole for the vertical part. - Let the slide slowly and then chase the big single air bubble with the soft cloth -Essuyez Recent fingerprints with alcohol cloth and then wipe with soft cloth
BRAVO your glass is asked and no bubble :) For cons, I remove one star because the glass is perfectly suited wider, but more and 2mm top and bottom would be needed to cover the entire screen (except of course curved part)