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Lag or Screen Problem?

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postnobil
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Default Lag or Screen Problem?

Hey guys. I own a Sony Xperia U and I've had it since September of 2012. The phone has had its fair share of being dropped. I've also rooted it and I have tried different ROMs. I feel that my touch screen has a problem. I have a bit of difficulty when writing new messages, when I tap on a letter, sometimes it doesn't respond. Same with playing games, say for example, Flappy Bird. Whenever I tap, it doesn't always respond to my tap. I'm saying that I can only "feel" that it is a touch screen problem because I also think that it could simply be lag? I've tried using different roms, going back to stock but the problem persists. I've tried modifying the sensitivity of the screen but I don't think it really did change. What do you guys think? Is it the touch screen itself or could it be lag? What do you guys suggest? Thanks!
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DH4NU5H
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Try removing screen guard if it's old (sometimes old roughly type screen guard creates problems) and clear as much as ram possible, check Touch Screen in service tests
*#*#7378423#*#*
So u can know if it is touch or lag.


# Sent from my Xperia ST25i #
 
thelexxnow
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did u try to go back to a clean, stock sony rom? if the problem persists, it should be a hardware-related issue
 
postnobil
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Well I tried the service test, when I tap on the phone once, sometimes the white mark doesn't appear. Doodling shows marks however, but not sure if it has a sort of lag or something. I've tried going back to stock rom before, the problem didn't go away. Also I've removed the screen guard.
Sony Xperia U!
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