Share your experience!
Hi Everyone,
I recently updated my Xperia ST15i to New Version 4.1.B.0.587 and after updating i feel that Old Version was very good in terms of both attraction and as well as Performance. Is there anyway to roll back to the previous version.
The good news is that it's possible. I have just rolled back my Xperia Mini Pro to 2.3 due to problems with ICS.
The bad news is that you can't do it yourself and need to contact Sony support (or local company providing the support). Probably they will take some fee for that as well.
if your phone is in warranty period then they will not charge you for the downgrade process..and really 2.3.4 is deserving pack for xmp.
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Thanks for posting and welcome to the forum! 
For such info please contact your local Sony Mobile support. You can find contact info on the link below.
http://www.sonymobile.com/gb/support/contact-us/
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Me 2, and I regret that i whast stupid to update!
Damn! my phone is out of warranty! IT is so laggy! thanks sony for make my Xperia mini pro so slow in an official way!!