Hi there,
So, I just got an Xperia Z5 E6683, which my sister also has one. I have registered my fingerprint to unlock my screen. Unfortunately, it does not unlock instantly like my sister's Xperia. I have to press power button, then the phone can identify my fingerprint. My sister can unlock her Xperia Z5 instantly by using fingerprint (and the screen is turned off too!). Do you guys have any solution for this? Sorry if my english is bad.