Screen issue

[gmohiuddin]

I have purchased Xperia T set yesterday... whenever i press the power button to turn off the screen as soon as the screen gets off a line appear and vanish .. it appears on different area of the screen whenever the screen is turned off by power button. any suggestion ??

[Alexander1]

First of all I would suggest that you check the developer option under settings > developer options. Nothing should be turned on there. 

Also check that you haven't got Talk Back turned on under settings > accessibility. 

If you still experience this behavior I suggest that you update/repair the phone software using PC Companion: 

http://www.sonymobile.com/update

[gmohiuddin]

I have checked other xperia set in the market it has the same behaviour like mine.. i also checked Xperia SP its screen was flickering but there was no line when screen turned off i believe its some manufacturing or software issue with all the xperia T sets