Steps to downgrade from ICS to gingerbread.

jobsp90 Posts 8 Registration date Sunday June 29, 2014 Status Member Last seen February 21, 2016 - Jul 29, 2014 at 01:17 AM
I am using xperia arc s Lt18a. Recently I have upgraded to ICS from gingerbread. But it seems to be not working fine. I want to roll back to Gingerbread. So pls guide me the steps to do the same with the download links to download any software like flashtool etc..