Share your experience!
i updated today phone wit wotan server service to sw of android 4.0.4 but i do not know if with correct pack (Central europe 3)
i have SI number 1256-9265...
if i updated bad one how can i correct this ?
thanks
This is not our service so I guess that you would have to check with them if you have the correct firmware and if not how to fix it.
but u know information about phone si numbers and about SI number = associated fw
if is xperia free ..and is possible to unlock bootloader why sony do not provide to us list of this informations ...is it secret ?
I know i lost warranty and i do not want from u money back or support like how to...but
why u can't provide this list or provide us fw storage adress to get firmware of our choice...if i destroy phone it will be my problem :smileygrin:
i am sorry for my bad english 
thanks for kind answer 
check if you are allowed to unlock your bootloader
Service Menu
http://talk.sonymobile.com/message/113787
But why do you want to unlock it? do you know the risk?
you can also flash your phone with this
How to manually update 2011 Xperias to android 4.0.4 build number 4.1.B.0.431
i have unlocked yet but i lost DRM :S ...i didn't know about 2nd way to unlock :smileygrin: ..but i know i lost warranty i think....i have yet 4.0.4 custom rom based on sony's one and for me is more ussable as 4.0.4 sonys stock
but why did you unlocked it?
According to your SI number the pack should be Central Europe 1.