XPERIA ACRO S GO crazy after upgrade JB!!!!!!!!!!!!!!!!!!

[PLSHELP]

I bought this phone a few week ago ,my phone display go crazy after the update , first start with white stripe all over the screen and it when back normal. But a few day later, it go crazy blinking . here the video for detail:http://youtu.be/YWwKGJmiNIk

im tried flash stock ROM and downgrade my phone but didn't work ! Pls help 

[Alexander1]

Make sure that you have all developer options turned off. If that doesn't help I suggest that you try to repair the phone software using PC Companion: 

http://www.sonymobile.com/update

If the problems still persists, you should have the phone examined by a service center. Please contact your local support for more information: 

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

[PLSHELP]

I live in Lincoln, Nebraska . how can i send my phone in for a repair?