Share your experience!
Well, our much anticipated 4.4.4 has join the party. But unfortunately I found a bug already in my quite new Xperia Z1 which I
bought 10 days ago & updated last night to 4.4.4 from 4.4.2.
Found a problem. I don't know whether this is only in my phone or its a bug in software. A little while ago I tried to open power management. When I press it, the screen started to scroll down on its own Also in messenger, tried to tap a smiley. But it was not working, instead another smiley was selected Then I switched off it and started again. Now its ok.
Also battery is not a huge improvement, but definitely better than 4.4.2. Um gonna play some HD games and lets see what happens then.
And I took some photos(around 25) and back part of mobile heats up very quickly 
Ok,good to get feedback.For everybody else,please post here all the issues found.
The root will be gone.
there is no bug like that. I installed the new update its really fine. no over heating or battery drain. ( battery drain is a google os problem.not sony problem). only problem is every update sony will use more ram.. from last update now I have only 700MB free ram memory. if sony can manage the free ram side its really good. because samsung and HTC there update not effect to there free ram much. other than that there is no bugs on this update
As I bought my mobile recently, I got 4.4.2 in mobile. So I don't know the good thing about 4.3 in Xperia Z1. But some heating issue exists in my mobile after updating 4.4.4. When I use google cam, then camera heats up quickly and also heats up while playing games 😕
Nearly all of the phones heats while playing games. It is so normal.
black lock screen opens