Update Version

[JainFrancisJame]

My phone shows an update version that is already shown installed on the phone. When tried installing tht update the update wasnt successful.

[Uliwooly]

Try with PCC 

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[JainFrancisJame]

I did try it with pcc and it wasnt successful.

[Uliwooly]

Do you get an error with PCC? also, keep in mind that if you already have the update its just a bug with the servers, don't pay attention to the message. 

[JainFrancisJame]

Yep... error no: 100 or something

[Uliwooly]

Don't worry about it, its probably a temporarily issue. 

[JainFrancisJame]

What is sony update engine failure (error 100)? Why does it show every time I try to repair my phone which is in boot loop? earlier too I ve repaired my phone but it dint show this error. Pls Reply Fast

[Uliwooly]

It could be a temporary server error