One must be vigilent against the tiniest particle of dust getting on the screen. But I have never gotten a tablet protector on without at least one little bubble, just because of the larger area. I can usually get a smart phone protector on without bubbles. Air bubbles that won't go away are caused by dust particles lifting the protector a tiny bit off the screen. Take it and dab every square inch of the screen to be protected. After the guide strips are in place, so you can fold over the protector like a book cover, and put it back and it still fits, then your ready to use the dust remover (round sticky thing on the same sheet as thr guide strips). I always work from the left side of the tablet, but it doesn't matter. Just focus on getting one guide strip in place.
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If you get it wrong, peel off the guide strips-just from the protector-and try again.
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You can look for the camera hole on top, and then just make sure there's about the same margin all around. Hold it still, and gently stick the ends of the guide strips to it. When you do the initial fitting, put the guide strips so they attach to the side and back of the tablet, with enough left to stick to the protector. The whole reason for a protector is to protect, not destroy the nice smooth 'new' glass coating on the original screen! Just kind of buff it clean with the dry cloth. The buyer ought to clean the screen with the enclosed micro-fiber cloth, with maybe a few drops of water for stubborn screens. One word of caution: this comes with alcohol wipes to clean the screen before applying the screen protector! Do not use alcohol on a glass touch screen! It removes the final treatment put on it by the manufacturer. One thing negative reviewers frequently forget: "I did not follow the instructions, so I'm going to blame the product." It has a nice oleophobic coating making if feel smooth, and resisting finger prints.
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This one is better than average, but not the absolute best I've ever used. So, I've installed at least 20 tempered-glass screen protectors. That's not to mention all the smart phones and cameras. I've had at least 10 large, expensive tablets, and each one had at least one screen protector installed.