The only way I’ve ever been able to apply a screen protector without getting anything under the screen is to keep it brand new in-box until I get my case / screen protector on. I basically get the screen protector ready to install and then I unbox my electronic device and apply the protector immediately. I know one day it’ll bite my for not doing a test of the device before apply a screen protector, but i’m willing to risk the price of the protector for a good install.
The only way I’ve ever been able to apply a screen protector without getting anything under the screen is to keep it brand new in-box until I get my case / screen protector on. I basically get the screen protector ready to install and then I unbox my electronic device and apply the protector immediately. I know one day it’ll bite my for not doing a test of the device before apply a screen protector, but i’m willing to risk the price of the protector for a good install.