yeah... i also don't quite understand why...

in fact with 757, i find it to be better than JB... volume got louder, ram usage less, camera quick launch working, battery so far i think better than JB

for those who face problem, these are my suggestion:
1. if only certain apps having problem, try uninstall and re-install the apps. if still cannot, try contacting the apps developer. like wechat, i think alot of user complain about it. so i think most probably is the apps itself not really compatible with Sony's kk.
2. if whole phone behaving weird, try do a factory reset. with this, try not to backup too many of your apps, only those essential ones and those that you need to backup the data only. if there are some problem with the apps, chances are when u restore back those apps, it will still be causing the same problem to your phone. do a factory reset and redownload those apps that you need.
3. if factory reset can't do, use the repair function in PC companion
4. If still having same problem, i suggest u to download the firmware and flash it via flashtool manually
5. if still cannot, can try other country's firmware or just downgrade back to JB (but recently 1 user face even more problem after downgrade to JB, dunno why)

well, these are just my suggestion. good luck!

...never have this issue b4

i don't think we can tell much from those screenshot regarding battery drain

in the past i use wakelock detector to see if there's any apps keep running and awaking my phone. but due to kitkat restriction, the apps no longer working

maybe u can use other apps to monitor like betterbatterystat (if i remember correctly). i myself have not use it b4 la

757 is release to fix the sound bug found in 681
To me, 757 is the best fw thus far

just install PC companion into your pc. then connect your phone and it should be able to detect the update

Well, for my case 757 is better than 681. In fact it's even better than previous 4.3 jb fw.

But this is my case and I am aware many user face problem since kitkat. Not sure why.

Download amazing spiderman 2 game for free via Xperia lounge

it is normal. many games will download additional files after we install the APKs

mine working fine

new firmware 761 certified. not sure what bug it will fix

http://www.xperiablog.net/2014/04/24/minor...act/#more-24377

haven't release la. just got certified. even certified also may not be release. they may have another more update version in plan.

There's no major issue with z1.

Hardware wise, Most people only complain about the viewing angle of the screen. If you don't mind that then it is a really solid phone to have.

Software... Many complain about the recent kitkat update got problem. But I too didn't face any problem till now.

If you can wait and have the budget, I suggest you to get z2.

Hope you don't get my message wrongly. Z1 all a solid phone to get more of you are in a budget. I am still enjoying it everyday and have no plans to change phone anytime soon.

Z1 compact only smaller screen and battery.

After flashing back to stock rom also cannot work? Wow... This is serious. And I tot all these while if there's anything wrong with the mod software I just flash back to stock rom and everything will be back to normal...

Not sure what your expectation is. All phone gets hot when used. To me it is normal. Don't forget z1 processor is clocked higher speed than s4. And I think glass and aluminum is of better heat conductor than plastic.

Try checking what apps is always running at background. Also if you are using Chrome, try switching to other browser. Chrome, while fast and snappy, is a heat generator and battery drainer.

what brand u using?

i am using nilkin glass sp. so far satisfied with it. not to say fingerprint-proof, but fingerprint resistant and it's much easier to wipe off any fingerprint.

Its meant for people new to android

Btw, I just receive the new album update

not all of us facing problems with the latest fw. but if u wanna play safe, just stick to the current version.

yes, but u'll need to do it maually. need to download the ftf file of the desired fw and flash it via flashtool