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As you can see above, Im not able to change Swipe or other types. I dont know why. All I did is just update it normaly with the PC Companion 
Is there any one have the same problem 
please tell me how to fix it 
thanks a lot 
Solved! Go to Solution.
do you have a SIM pin lock? another screenlock app? any taskillers, antivirus, task managers, ram aps? what is that blue C icon top left?
it's Advanced Mobile Care
and i also have Sreen Off FX. That's all
is it the reason of this problem?
(sorry for my bad english)
yes thats most likely the reason
Hi, check the settings under Settings->Security-> device adminstrators option.
if you see any application with check box enabled, then these application may be cause for the issue, they are forcing some security policies.
if you want to enable Swipe or other types just uncheck the applications in device adminstrators and confirm.
Reboot the mobile if necessary.
--TiniWings
i tried but it did work 
you could repair your phone or do a settings reset
Update Service (SUS)
http://www.sonymobile.com/gb/tools/update-service/
http://www-support-downloads.sonymobile.com/Software%20Downloads/Update_Service_Setup-2.11.12.5.exe
Bridge (for Mac)
Alternatives on How to backup Xperias
http://talk.sonymobile.com/thread/36355
Don't forget to mark the Correct Answers & Helpful Answers
that not actually what I want 
however, thank you anw 
have you uninstalled the apps?
try factory reset .. then install the firmware with SUS