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Why do I have vertical lines on my Sony Xperia Z Ultra 4.4.4 build?

A

AC Question

vertical lines on sony xperia z ultra 4.4.4 build

Im using an xperia ultra Z for sometime now, I'm encountering white screen intermittently, specially when the temp is cold, i tried to do hard reset, still the same. is there a fix? or it is a hardware issue?
 

B. Diddy

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Mar 9, 2012
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Re: vertical lines on sony xperia z ultra 4.4.4 build

Welcome to Android Central! That's almost certainly a hardware issue. Is it still under warranty?