how to revert to old version of android in sony xperia u

[AnkitSingh]

Right now i had Android v4.0.4 in my sony xperia u. How can i to revert back to android v2.3

[shihstouch]

You have two options

1. Take your device to a service centre.

2.Flash your device.

[Uliwooly]

If you opt for the 2nd solution

How to manually update, downgrade, root 2012 Xperias

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

Don't forget to give Kudos

[AnkitSingh]

how to flash ??

[Uliwooly]

All the info is on that link