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Dear Support!
My problem with xperia U softver update 2.3.7 to 4.0.2 ( on my xperia u 2.3.7 )
I don't understand your question
From Sony site
You may already have the latest software, depending on the date of purchase. Software updates are released at different times depending on operator and/or country. Therefore, we cannot give you an exact date for when a specific update will be available for your device.
How to manually update, downgrade, root 2012 Xperias
http://talk.sonymobile.com/thread/41609