Review: K1 looks way better but responsiveness of back capacitive button is not improved (reason why I bought new screen protector in the first place). It is still less responding then menu or recent It seems we will have to get used to it by pressing 2 or 3 times to go back. Only solution to a problem is not using screen protector at all or doing it by using swipe function.
Yes, that seems to be the issue with glass screen Protectors. I tried a Sikai and it was good for a day but quickly became an issue with the capacitive buttons. Going naked now