[Q] Touchscreen input problem - G2 and Desire Z Q&A, Help & Troubleshooting

Hi all!
I hope someone could help me,
My Desire Z touchscreen works weird, sometimes it does 2 unusual things:
-sometimes when trying to scroll it will zoom in or out like there is another finger there but there is not. If i run pointer location test, then it shows there is screenpress in the middle, but im not pressing it. the only way to fix it is to turn off the screen then turn back on.
-other times, the problem is similar, about 1/4 of the touchscreen in the middle/horizontal does not recive input. And the whole screen wont recognize touch correctly.
The problem happens mostly -but random- when i play games, or read pdf!
Is this problem related to the digitizer? I have tried more ROMs, the same problem. Not charging, no screen protector on the device, no break on glass.
Thanks in advance

Related

[Q] screen problem when turning screen horizontally

Hi all,
I have a problem with my HTC Desire HD, and i have searched the forum, but didn't find this problem.
Every time i turn my phone horizontally (games, messages, every app), it works for 2-3 sec, then it responds no more. If i turn the screen vertically all is working fin.
This happens every time, and so i can't use my phone vertically.
I think this is a software problem, as the screen is working perfectly when it is vertically.
I have the latest software updated.
Can you help me?
Thanks
Nobody ?

[Q] TocuhFlo3D problem!

Hi! I have a big problem with my Rhodium.
I have post another similar thread before but aybody seems to respoding..
I don't know what happened to my phone.
The touchflo3D seems to not responding. in other words the screen reacts when I tap on it, but I can't move or select anything on the screen.
I don't understand if it's a software or hardware problem.
The problem born with a custom rom I installed.
R [WWE|GER|FRA|ITA|NLD] |Feb 12| Energy™-.¸¸.·´¯ 6.5|21916 / 6.5.X|28244 * Sense 2021
after few days of no problem, the screen became as I described, incapable to select anything.
I tried also to move to the settings to disactivate sense but it was impossible with only the keyboard.
I searched on the forum for the solution, but the methods proposed didn't resolve the problem!
So I decided to return to the ufficial Rom.
RUU_Rhodium_HTC_ITA_1.19.408.1_Radio_Rhodium_3.44. 25.27_Signed_Ship
I performed a HardReset before the reinstall of the ufficial rom, but the problem remained.
So I performed a task29, but after the reinstall nothing changed and the TouchFlo seem to be broken.
I followed the guides proposed but I don't think I commited something wrong...
I suppose is a problem of the software because, I repeat, the screen react to my tap when is in minimum light.
Please help me because I don't know whato to do...
Tnx to All!!!!
Is the issue *only* with Touchflo? Can you tap on the Start menu and bring it up?
I'm confused as to why you say "the screen reacts when I tap on it, but I can't move or select anything on the screen"
How can you tell if the screen reacts?
Mnementh666 said:
Is the issue *only* with Touchflo? Can you tap on the Start menu and bring it up?
I'm confused as to why you say "the screen reacts when I tap on it, but I can't move or select anything on the screen"
How can you tell if the screen reacts?
Click to expand...
Click to collapse
Hi! No I can't tap on the start menù and when I tap on any icon on the screen nothing happens!
What I meant with "the screen seems to react" is that (sorry for my English XD!) before the screen goes black, the light goes high to low, ok?
when the screen has low light, and I tap on the screen, the light goes to high, so it seems that the screen can react to my tap.
tnk you very much for your response.
If I wasn't capable to explain correctly, please tell me 'cause I'm a little worried for my phone!
Bye.
i don't want to bring down any hope left, but if it does not respond to anything you do, i think your phone has just lost its flat cable. It might be broken and fixing it up would be a total pain. I would bring it back to where you bought it. Contact me through pm for further details, if u're still wondering what does this mean.
G4rreT84 said:
Hi! No I can't tap on the start menù and when I tap on any icon on the screen nothing happens!
What I meant with "the screen seems to react" is that (sorry for my English XD!) before the screen goes black, the light goes high to low, ok?
when the screen has low light, and I tap on the screen, the light goes to high, so it seems that the screen can react to my tap.
tnk you very much for your response.
If I wasn't capable to explain correctly, please tell me 'cause I'm a little worried for my phone!
Bye.
Click to expand...
Click to collapse
This sounds either like a broken / damaged ribbon cable (the "flat cable" the previous poster was referring to) or a damaged / broken digitizer.
On my old phone, the digitizer slowly broke - first the accuracy of the touchscreen would slide, then it got to the point where it wouldn't register 'on screen' at all, even though the phone could still tell I was tapping the screen because the backlight would come on etc, just as you describe.
Replacing the digitizer will cost money, but if you're going to do that find someone good at doing it! And also consider getting the device checked out and replacing the ribbon cable too, it's probably one of the most vulnerable parts of the device so it can never hurt to be overly cautious and replace both of them. Unfortunately there's always a cost involved
Let us know how you get on...
Hi the cable is not the only thing that can couse your screen to not respond, ive seen a tp2 that stoped responding because IT captured humidity in the digitizer screen, you can tell if this is the case by mooving your phone under the sun light and you will notice a kind of rainbow loking transparente spot, this humidity causes the digitizer screen to get stuck, the Solution can be to let it dry in the sun, or to rub it jently against your leg, the fricción can help to dry out the humidity, hope IT helps.
Search on here "tp2 screen not responding"
There is a thread on here I found about the screen not responding, and cleaning around the chrome edge with something thin, carefully, (I used my fingernail, which worked, but I lifted the contact too much down by the buttons on the bottom of screen). Worked for me and a few others. Good luck.

Touch screen stops working

I'm the [almost] happy owner of a Defy whose digitizer, from time to time, stops working or goes crazy.
The "goes crazy" part it's obvious and it only happens in Angry birds. The game keeps on zooming in and out like, beside the finger that I am putting on the screen, there's an invisible one that shifts on the screen. Seems to be app related as this doesn't seem to happen in any other app.
On the other hand, from time to time, the digitizer seems to stop out of nothing. I haven't noticed any particular pattern on this but it might be driver/app dependent too.
Both of these situations are resolved with a blanking of the screen (top button).
Does anybody else have this kind of problems? Any idea where is the problem?
PS: If I get any more patterns I'll get back.
Yes, very rarely. Screen will not respond and have to time out screen and then it's fine. Usually happens while on charger.
I have trouble with most multi-touch games. After a while, the screen stops responding. Sometimes if I release my touch temporarily it will work again, but by then I'm dead or have crashed Not sure if it's just my fingers sweating onto the screen or something!!
I tried the multi-touch tester app in the market, and it tracks two touches without a problem; so it only seems to happen during games.
eg
Gun Bros
Mini Squadron
The multitouch tester also does the bug. Just try to simulate playing in the tester and you'll see sometimes one finger not responding. But I think there are very few phones with perfect touch screen for playing games. So not a big bug for me.

[Q] Screen remains static when keyboard is slid in

Hi
I bought a new RHOD100 and am running Stock WinMo 6.5. First few days the phone worked beautiful. But about a week of usage landed me in this condition.
The screen only lights up with the keyboard is out and not tilted. Other than that, if it's slid in (portrait mode) or when it is tilted up, the screen freezes to whatever it was like when the keyboard was slid out. The touch functions work, I can hear screen tap sounds, and if I click on the right icon things open and close too, but the display remains frozen until I slide out the keyboard and/or undo the tilt.
Any ideas how to fix this? Is that hardware or software?
I have never dropped it, nor exaggerated the tilting.. Can it be the Flex cable?
Definitely hardware... almost 99.99999999% sure this issue is hardware.
I'm betting it is indeed the flex cable. If you're feeling brave, you can attempt to take the phone apart and see if you can find the issue - keep in mind, this is very delicate and tedious work. Need a steady/careful hand and a lot of space! Good tools help too .
http://www.ifixit.com/Device/HTC_Touch_Pro_2
http://www.ifixit.com/Guide/Installing-HTC-Touch-Pro-2-Display-Screen/5546/1

Quick screen 'taps' register as 'drags' after screen replacement

Hi everyone.
I have recently had my screen replaced. After playing around, i quickly noticed that my keyboard screws up when i start typing.
The faster i type, the worse the problem is.
I checked touch response times and achieves normal times of about 60ms, however, i turned on touch overlay in developer settings and noticed that if i touch opposite sides of the screen quickly (to simulate typing), it would draw lines between the touches as if i was dragging between the two points.
This is what causes my keyboard to do funky stuff and heavily lag when typing fast.
Please note that this never happened before the screen replacement, and a hard reset didnt fix the problem.
Is there any software fix for this, or do i need another screen?
thanks.
nic_coe said:
Hi everyone.
I have recently had my screen replaced. After playing around, i quickly noticed that my keyboard screws up when i start typing.
The faster i type, the worse the problem is.
I checked touch response times and achieves normal times of about 60ms, however, i turned on touch overlay in developer settings and noticed that if i touch opposite sides of the screen quickly (to simulate typing), it would draw lines between the touches as if i was dragging between the two points.
This is what causes my keyboard to do funky stuff and heavily lag when typing fast.
Please note that this never happened before the screen replacement, and a hard reset didnt fix the problem.
Is there any software fix for this, or do i need another screen?
thanks.
Click to expand...
Click to collapse
I mainly work on iPhones, but it sounds like your digitizer is out of calibration. Don't know if there's a software fix for it, but hopefully this will point you in the right direction. Also I'd take it back to the place you had it repaired and see if they can fix if it's still warrantied.

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