As soon as I applied the glue on the screen (via the special position of the auxiliary base), the top part of the glue was filled with small bubbles (like foam), which did not go away. When I put the glass on top, the bubbles got trapped underneath and became fewer (around 25) and larger, occupying the entire screen. Since there was no way to remove them, nor did the instructions describe such a thing, I had to remove the glass and rinse off the glue, which fortunately cleaned up. It is obvious that the glue was defective.

Great caution is needed when the liquid glue falls on the mobile phone, it is like water and runs. I had bubbles inside the glue that I didn't burst and they stayed under the glass. In the end, I am not satisfied and the instructions it has are ridiculous. I finally removed it and the screen almost got damaged, it came off piece by piece like confetti. The glue had become one with the screen, I regret putting it on a thousand times

At first, it seemed like a very good choice. Clear image, without affecting the screen's handling. The fingerprint sensor was working so-so. Its real problem is that after just 2 weeks, it started getting scratches from one side of the screen to the other, without the phone being hit anywhere. As a result, air got trapped under the protector, and the adhesive created a blur on the screen.

The fingerprint works! Especially with the new update, it works great. Not exactly like when there's nothing on the screen, but it works 90% of the time, which is enough to protect your screen and definitely worth half the price of Whitestone. The glass is of good quality, almost as good as Whitestone, and it doesn't leave many fingerprints (it has a coating). I recommend it