Help Is my touch screen broken?

[tyrone910]

Recently I noticed a defect on my Samsung Galaxy S Duos 2's touch screen when typing in portrait QWERTY.
For example when I tap the letter "G" then quickly followed by "A", the output is either FA or SA, and sometimes DA. Another one when I quickly tap "T" then "U" or "O", the output is YU or YO. But if I pause for a second before tapping the next letter, it doesn't happen. It seems like when I tap two different fields in a split second, the wrong field is tapped instead. It is very annoying because I'm used to typing fast on touch screen phones. I don't have 3rd party keyboard apps installed and using Samsung's default keyboard. Does it have to do with my phone's LCD?

Others problems:
When tapping "H" and "A" or "E", the output is GA or GE.
When tapping "C" and "O" the output is VO.

 

[Mikestony]

I suppose to rule out a screen issue, try typing in landscape and / or try a 3rd party keyboard?

 

[funkylogik]

^^this

 

[hiredgun]

Totally sounds like the keyboard to me. Here are two EXCELLENT FREE keyboards you can try!

http://swiftkey.com/en/

http://www.touchpal.com/en/downloads.html

I suppose to rule out a screen issue, try typing in landscape and / or try a 3rd party keyboard?

 

[tyrone910]

Doesn't happen in landscape. I tried running the TSP Dot Mode calibration for touch screen where I only tap the part where the letters A and G should be several times and the result, as expected, lots of X-marks appear on those parts as they should be but there were also X-marks appearing on the places where the F, D and S keys are located.

 

[funkylogik]

Does sound like a dodgy digitiser then
Don't think there's anything you can do software wise, either live with it or get it replaced I'm afraid