how to downdate

[usamakhella]

Hi Dears :-

after I updated my Xperia tipo dual phone to build No 11.0.A.6.5 facing many problems

I want to roll back to the previous version build No. 11.0.A.1.8

How can do this ??????????

with out loss any data !!!!!!!!!!

[usamakhella]

hiiiiiiiiiiiiii

no reply till now !!!!!!!!!!!!????????????

[Johan]

It's not possible to do this officially by yourself so I suggest that you contact your local support team to check if a repair center might be able to assist you with this.

http://www.sonymobile.com/global-en/support/contact-us/contact-info/