Software update for xperia z phone

[xperz]

Hey i was going to update my phone software using the sony pc companion. But when i click start update on the computer it says i have to install some compatibility update from microsoft.  kb2917929. And also it provides a link to download it. 

Although i followed the steps as they have mentioned. i still getting the same message over and over again. 

Im using  windows 8.1. 

What is the reason for this 

Btw i heard that it is good if someone can update phone software using pc companion and its safer than updating it through phone directly. Is this true ??

Please give me the reason for top most question as well

[xperz]

Btw how would you rate this jelly bean 4.3.3 update? is it a good one?? I have read some review says there is a big problem of discharging the phone battery very fast. Is it true? can I roll back to my factory os if there is a problem because I have backup my phone recently.

[_alexdon_]

I do not have the Z,I have Z1.4.3 is a good update and you cannot say you will have some issues.It is better to update using a computer.

[xperz]

Ok in Sony update service in first steps it says 

"make sure your device isnt connected to the computer"  What is this ?? how can i update my phone through computer if i cannot connect it to the computer ??

[_alexdon_]

It will ask you to connect at a later point.

[xperz]

Okkkkkk image update my phone to android 4.3
This is not the kitkat version am I correct??
Btw can I update my phone to 4.4.2 version?? Is it possible for my phone???
I live in Sri Lanka

[xperz]

Sorry I update my phone

[_alexdon_]

When it is available,you will be able to update to 4.4.2.

[Tommot]

Hello,

I got exactly the same problem (could not uptate neither over pc companion nor wifi), but the SUS Installer solved it.

But Sony PLEASE:

put your Solution Marker to the Answer with the download Link

...

You should also try SUS:

http://www.sonymobile.com/gb/tools/update-service/

Thanks a lot

[Plupp]

DO NOT TAKE THE UPGRADE !!!

Whatever you do, stay on 4.3 until there is a fix available. DO NOT GO FOR 4.4  !!

Battery consumption became huge, and battery life (on full power saving) is now less then half.

Using Z1.

[xperz]

Me too thought so. I have read many reviews about this update. All are saying the same thing about this battery problem