Remove the Screen Protector

On the other hand, if your iPhone is pretty clean but its screen still doesn’t respond, you might want to consider removing the screen protector. 

Screen protectors work great in most conditions. But if the one you use is too thick or wasn’t installed properly, you might end up having screen issues.

If that’s the case, the best thing you can do is remove it and see if that fixes the issue. Luckily, most screen protectors come with a spare in case you didn’t install it right, so you can install it again if you want to.