I have used this brand many times with my previous phones. and I don't recall having any problems with either of them. The one they have for the iPhone 12 seems odd. It doesn't look like the cutout on the hard plastic rail is exactly the same size as the screen protector. This caused my screen protector to curve, causing the corners to lift up when using the case. I've had to reinstall it a few times and that's why I don't have any lint and bubbles under the protective film!
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