Hi guys just got an question, where mine currently version ,471 jst upgrade from .461 and since the new set out of the box , everytime unlock using power button it's just not responsive as fast as usual hands on display when its lock the power button it's fast as normal but when unlock the screen sometimes just fast and sometimes it lit up but only fully unlock when press power button again , any idea ? setting is Stamina mode battery 99%, No SIM card inserted, is this an BUGS need assistant pls ((