4.2.2 the lockscreen kind sux. Always i power on to the lock screen it will show somekind of page layout for like 1 sec before disappear. Look very ugly the thing.
Then somemore can scroll 1. I use pattern unlocking so sometime it will scroll to other page instead of unlock the phone.

Factory reset the phone, you will gaining back the smoothness, it is as smooth as previous 4.1.2 firmware except Album app which lagging.

hey guys. is there anyway to revert back to old 4.1.2 ver? it feels like using my old x10 after update my xz. lagg on most of apps (even typing this post using chrome also lagging) not to mentioned in-game lag (minion rush, subway surfers), cameras take seconds to load, lockscreen etc. already reset to factory default settings as advised.