I see a lot of people end up with blisters and bad stuff under the shield. I usually fix my friends and family's phones and screens for free, so I know what I'm doing when it comes to protectors and how to use them. Use 95% strong alcohol or alcohol wipes to clean your screen lenses. This will remove a lot of the invisible oil from the screen and allow the glue to do its job. Work in an area with insufficient air circulation as cleaning the screen will continue to collect dust. Work on a clean, hard surface and the secret is to use the stickers that are provided to remove all lint and dust from the screen. It will look brand new if you take 5 minutes to dust it off. Then put on the aligner. Reuse the sticker for lint. Remove the plastic cover from the back of the protector (away from the screen so you can move the dust around again). Then place the protector on the bottom edge of the aligner and just drop it. It should fall perfectly, now just swipe down in the middle. Bubbles may appear, but use a good cloth to squeeze them out and leave for about 10 minutes (do not use immediately!). When it's done it should hold up perfectly, with no bubbles, dust or lint. I recommend 10/10.
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