For those who reported all sort of issues after update to kitkat, have you all done the factory reset after the update? If no suggest to do so.

Myself faced the following issue after update to kitkat 681
1. Can't change wallpaper in lock screen
2. Sound bug
3. Camera quick launch inconsistent ( since 4.3)
4. Camera app sometimes open after I close some apps

Issue 1 was solved after factory reset. Issue 2 & 3 solved after update to 757 fw. Now only facing issue 4.

So far satisfied with current fw
- battery seems better than 4.3. But need more time to confirm.
- ram usage lower
- volume is louder than 4.3
- thus far no issue with any apps crashing
- love the transparent status and nav bar. And the nav bar will auto hide in most games now!

I installed but have not been using it for a long time. This also happen when I'm using Sony home launcher

I did a factory reset to fix this. Have you done it?

thanks for the info! will consider about it.

btw, anyone using Sony SW2 here? if yes, where did you guys get the screen protector from??

actually i don't like their album, cant put them in folder myself in the phone

Just update Z1 to 4.4.4 and realize got "What's new" features adi wor