Share your experience!
I have a dead zone in my phone. its a Xperia Neo L,, The dead zone is a vertical line that goes along the center line.. i cant draw my pattern correctly because of it.. do you think its a hardware issue? any help would be appreciated,, thanks. 
To rule out any software problems you can try to repair the phone software using PC Companion:
http://www.sonymobile.com/update
If the problem persists I suggest that you 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/
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