[Q] Touch screen problem - Galaxy S 4 Q&A, Help & Troubleshooting

got delay on touch, i notice when i play Zombie smasher.
when i touch then zombie, the zombie that i touch are not dead, zombie at the back of the zombie that i touch are dead. sometime when i touch 2 times, it will zoom in.
how can i fix this?
pure s4, not rooted

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I9505 problem with screen sensitivity

Just bought my S4 two days ago and I noticed screen sensitivity was awful in some games. I tested it playing Dead Trigger and Royal Revolt and I was forced to press multiple times in order for the screen to register one press. Touch was fine in any other apps or when performing different actions. After fiddling with the settings I activated enhanced screen sensitivity for glove use and now games work perfectly. Just wanted to know if anyone else encountered this problem with these or other games. I still don't know if games are poorly optimized, my phone's screen sucks or Samsung's bad touch sensitivity on all I9505.
Sent from my GT-I9505 using Tapatalk 2

touchscreen issues with 2 games found

This is very odd behavour and I'm wondering if it's the games themselves or not.
Dungeon Hunter 4: When in the World Map screen, a small area near the lower right corner of the screen is completely unresponsive and won't scroll the map around nor respond to any touch at all.
Ravensword 2 Shadowlands: This happens on and off but it also happens in the same area of the screen as the other game. The attack button stops responding sometimes. This one is harder to pin down because it doesn't happen all the time.
I installed a multi touch screen testing app and it shows all areas of the screen working fine though. Has anyone noticed similar behavior with either of these 2 games? I wish I had another N7 to install them on to test so I could determine whether it's the games themselves or whether my unit's touch sensors are funky in that spot with certain games.
I have the same issue with the lower right in GTA Vice City. I'll be driving and go to hit the break and nothing happens. Really annoying!
I discovered it was the games causing it, not the tablet's fault.
omnius1 said:
This is very odd behavour and I'm wondering if it's the games themselves or not.
Click to expand...
Click to collapse
You may read my topic, my touch screen sometimes stops respondind too. http://forum.xda-developers.com/showthread.php?p=44601701#post44601701
i think the problem not in games..
For now i have only 1 question: is it hardware or software problem...?
It's the tablet, not the games.
Swipes and taps sometimes do not register on Candy Crush Saga and Bingo Blitz. Returned mine for good until they sort this out.
Sent from my Nexus 4

[Q] Touch screen problems

Hey guys
I have an odd problem eversince i took the plane (it was going well the morning) the touch screen started acting weird. A little part of the middle screen doesn't respond, well when i touch it the bottom of the screen respond (like an application opens which is in the bottom).
I have a S4 GT-I9500
Thank you
Bum

Multi touch? Is it grand prime or just me

Hey all.
I can't seem to play games such as racing ones tgat require me to hold one button down and steer with the other. It's like my touch screen only liked to be pressed in one place and not the other at the same time.
Two places can be touched, as I can do pinch and I tried the multi touch tester app and it said I could do 5, but once the screen is on an angle, trying to hold at the left and right side of the screen just don't allow me to touch them together at the same time, making it impossible to controll anything in games.
Is this a grand prime hardware issue, or is their somewhere I can calibrate something?
I have the same problem when playing games like Marvel Future Fight or Modern Combat 5. It's a hardware issue. Grand prime has multitouch problems. Time for a new phone. This one is garbage.

Multitouch problem on Samsung Grand Prime 2 fingers

Games like NOVA 3 and modern combat 5 works smooth and fine but after 30 minutes or 1 hour of play the touch stops to respond. I can only use one finger to move but can't use the second one to swipe camera. It's the same problem in every software I have used. I have recently installed the new PES game and I can't even shoot or move after some minutes of playing time. The touch becomes tilt. It's not my phone the issue because someone else also posted about the touch problem on the forum. This problem happens with games using two fingers like shooting, racing or football.
This is a cheap mobile phone. Samsung's quality control is lax

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