so far so good, much better battery life since 4.3 also. theres a few bugs here and there but nothing i can remember right now so can't be a big deal. could use the bring back apps to sd for what they did with xperia sp again, i wouldn't mind that at all.
The camera on mine will sometimes freeze whenever you take a second photo, and video mode the stop buttons stops working,
This happens consistently if the phone has been running for a few days. Reboot the phone and it works fine.
Battery life with the smart watch is much better than the 4.3 builds and almost as good as the orig 4.2's
i have none of those reboots and camera issues. i use my camera almost daily basses. my running time has been 3 weeks, and that's because i swapped out my sim card to test if an older phone is working or not.
This firmware update was the best update I received on my Z1.
KitKat was really buggy for me. I didn't had any random restarts, but I got the Camera Not Available for some time. The overheat was also a big problem. Direct Call shortcuts didn't had their contact photos on them. But, this update really fixed these things. The phone is smooth, no random app (camera opening) after tapping the back button like before.
Overall, great update!
Waiting for the new! Hopefully, something new will come...
After 4.4 jack slot stoped working. I can't use my earphone with my Z1. So only way to use earphone (or something like that) is using bluetooth. I hope sony will fix it. On the other hand all of things are stable for me instead of jack slot.