Downgrade Xperia U

[Ruvinda]

i have a xperia u with ics.unfortunately it is very slow with ics.can i downgrade my xperia u to gingerbread..

[Ruvinda]

 can i know it quikly...

[Uliwooly]

How to manually update, downgrade, root 2012 Xperias

http://talk.sonymobile.com/thread/41609