well you have go on talk.sonymobile.com for this issue
hey guys i am from Sri Lanka and i got my sony xperia s from Singapore one week ago. i know little bit about this problem and i know it appears when the phone gets too warm. And disappears when it comes to the normal temperature. i know that sony has promised to repair it free. but the only thing is i got this from Singapore and i got no bills or a warranty card. so how do i fix this in Sri Lanka. plz help me guys not like the others i am helpless, now i am struck with a yellow tinted display.

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