They work great and the installation is incredibly easy. You only get blisters for 2 reasons1. You failed to dust off itor2. You did the same thing I did when you first tried to install it and accidentally clicked anywhere other than the center of the screen while attaching. If you accidentally press the second area, air bubbles will remain near the center. If this happens, just gently peel off the protective film. Then reattach it using the loops created with the stickers provided, then gently touch ONLY the center and allow it to stick to the screen.
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