My S4 Mini is going mad,some invisible creatures are walking on my screen :silly:
The digitizer is seeing ghost touch
Installing a touch screen test application show that ghost touches appear regularly in the upper part of the screen
Is there some way to fix (or highly reduce) these ghost touches without changing the whole screen ?
For me it was random when it happens.
After a few weeks it looks to be gone again.
Foo Bar said:
My S4 Mini is going mad,some invisible creatures are walking on my screen :silly:
The digitizer is seeing ghost touch
Installing a touch screen test application show that ghost touches appear regularly in the upper part of the screen
Is there some way to fix (or highly reduce) these ghost touches without changing the whole screen ?
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any visible damage or dirt? Moisture? Bad connection of ribbon cables or poor grounding of screen can cause
IronRoo said:
any visible damage or dirt? Moisture? Bad connection of ribbon cables or poor grounding of screen can cause
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Click to collapse
The phone has not felt for months nor been exposed to special dirt (only skin grease)
I haven't dare unscrewing the phone to access the motherboard
Meanwhile I've put a screen protector to see if skin grease was the reason of that behavior .. will see
Related
Had the TP2 for a week now, really impressed with it, but.......
the plastic screen on top of the touch sensistive screen has come away so when i click I can feel the plastic screen move about 1-2mm before it hits the touch sensitive part.
Has anyone else experienced this, if so is there a fix (heating it or something lol?) or am I in a possition to send it back?
Is this the screen protector that has come away or part of the screen itself?
If it's the screen protector that you have applied, then apparently you can take it off, wash it and air dry it then reapply. Having said that I've never managed to do it, I always end up buying a new one!
If it is part of the screen then DO NOT fiddle about with it, send it back!
I have the same problem.
In my opinion in the middle of the screen + left/right, there is less sensity than under and above he screen.
I think in this part of the screen the space between lcd and his plastic cover is bigger than elswhere.
I have tested it with resco explorer.
I have tried to marked some files from up and down and with a slightly pressure, the upper and under area recognized the input, but in the middle it does not.
Perhaps my Rhodium lacks,
and perhaps it is overstated?
No idea.
It would be nice to get some statements from you guys.
Sorry for my english
Bub3d said:
I have the same problem.
In my opinion in the middle of the screen + left/right, there is less sensity than under and above he screen.
I think in this part of the screen the space between lcd and his plastic cover is bigger than elswhere.
I have tested it with resco explorer.
I have tried to marked some files from up and down and with a slightly pressure, the upper and under area recognized the input, but in the middle it does not.
Perhaps my Rhodium lacks,
and perhaps it is overstated?
No idea.
It would be nice to get some statements from you guys.
Sorry for my english
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Click to collapse
Exact same problem as me, I don't think it was like it when I first got it, lets give it some time and see if others experience the same problem - not sure if this will be covered by warrenty or not.
same problem for me. i can press the screen for about 1-2mm down. but only in the center of the screen.
sometimes there is a click noise, when pressing the screen in the center and under the speaker at the htc logo.
did anyone send it back?
do you mean ?
Do you mean that the screen in the middle is "wobbly" ?
I think I have the same Issue In the middle it feels like if there is some space between the plastic covering the screen and the lcd.
and no, I dont have a screen protector on it atm...
This "issue" that is being discussed here is known as the screen flexing. Unfortunately, this is an attribute of all resistive touch screens.
ohyeahar said:
This "issue" that is being discussed here is known as the screen flexing. Unfortunately, this is an attribute of all resistive touch screens.
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Im a bit relieved now. So it is normal to be like that or a problem with the screen that happens sometimes due to the nature of the resistive screen _
bonevbs said:
Im a bit relieved now. So it is normal to be like that or a problem with the screen that happens sometimes due to the nature of the resistive screen _
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Click to collapse
It's normal. All resistive touchscreens are like that (check out your/someone else's Nintendo DS, it's the same). The flexing is pretty good (ie, minimal) on the TP2. It's much worse on older generation devices.
thanks
ohyeahar said:
It's normal. All resistive touchscreens are like that (check out your/someone else's Nintendo DS, it's the same). The flexing is pretty good (ie, minimal) on the TP2. It's much worse on older generation devices.
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thanks for the information.. I didnt knoiw that
Hi,
a while ago, I cracked my Uni's LCD. So I ordered a new one including the digitizer, opened my Uni and swithched the displays. Now at times, the touch screen wouldn't work at all - unless I tap the upper left corner (the start button; in portrait mode) or the lower left corner (the left button or slightly above it; in landscape). After that, tapping everywhere works normally. Does anyone have an idea what this could be caused by or how to solve it?
Thanks in advance!
I'd make sure your contacts are very clean. If you think maybe they're not, then take out and clean contacts with dry cloth or contact cleaner and re-insert.
Also, make sure there's no debris around screen. That nothing is pressing on digitiser anywhere else that gives false postive for it.
enigma may be able to help you better, I think she's more accustomed to the HW
Generally, all touch problems are associated with a digitizer. Without actually seeing your device I assume your digitizer is faulty and the problem may be either improper adhesion or the soldering joint improperly formed. Adhesion problem may be resolved by warming the screen with a blowdryer, no need to get it hot, just slightly warm all over and smooth with a soft cloth as if you are applying a screen protector, it loosens the special sticky gel that attaches the digitizer to the LCD and usually helps in cases where sensitivity is sporadic or screen calibration returns wrong response. Check for any bubbling, although not seen when the screen is viewed directly, some may be noted at the angle.
However, in your case there are certain points that need to be pressed in order for it to work, so I take it, the screen works most of the time and the problem is intermittent, the corners that need to be pressed might be the ones where adhesion is not up to scratch.
Try re-assembly, if all fails - contact the screen supplier, faults can happen, especially in non-OEM parts.
Do keep us updated if you find the solution, I am sure all members can benefit.
Problem solved
Well over time, the situation changed so that the touch screen didn't work at all, unless I was pressing one spot above the LCD fairly hardly, at which time it worked without problems. Once I stopped presing the spot, it stopped working again.
So I tried opening the Uni and disconnecting and reconnecting the LCD FPC (which was located just under the spot that needed to be pressed), which seems to have solved the problem
I bought a new oem touch screen digitizer from dealextreme to replace my old shattered one but it is not recognizing inputs, except when I try to pull down the notification bar with phone locked (CM10 Jelly Bean - Quarkx).
This digitizer comes with a film on both sides of the glass and I removed both. I know that removing the outer film doesn't acctualy intefere but, does removing the inner film do since it is close to the LCD screen?
Edit: I've followed the instrunctions from here: http://www.repairsuniverse.com/motorola-defy-screen-repair-take-apart-guide.html
tnsantos said:
I bought a new oem touch screen digitizer from dealextreme to replace my old shattered one but it is not recognizing inputs, except when I try to pull down the notification bar with phone locked (CM10 Jelly Bean - Quarkx).
This digitizer comes with a film on both sides of the glass and I removed both. I know that removing the outer film doesn't acctualy intefere but, does removing the inner film do since it is close to the LCD screen?
Edit: I've followed the instrunctions from here: http://www.repairsuniverse.com/motorola-defy-screen-repair-take-apart-guide.html
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Click to collapse
It is not the problem, I turned the phone on with mother board, LCD screen and touch screen digitizer all spread (cables connected of course) and it's still not working. I think my new touch screen digitizer is broken
tnsantos said:
It is not the problem, I turned the phone on with mother board, LCD screen and touch screen digitizer all spread (cables connected of course) and it's still not working. I think my new touch screen digitizer is broken
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I bought my digitizer from repairs universe. I also took off both films because the inner one had an air bubble. I broke mine because my proximity sensor doesn't work and i tried to remove a bit of the thick plastic which was covering the opening. now the very top right corner of the screen doesn't register any touches. I'm not sure what's wrong with yours but perhaps try a different rom. Or try disconnecting it again and put it back.
CodeRedXM said:
I bought my digitizer from repairs universe. I also took off both films because the inner one had an air bubble. I broke mine because my proximity sensor doesn't work and i tried to remove a bit of the thick plastic which was covering the opening. now the very top right corner of the screen doesn't register any touches. I'm not sure what's wrong with yours but perhaps try a different rom. Or try disconnecting it again and put it back.
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Click to collapse
I tried both CM9 and CM10 and none is working, and I tried disconnecting and reconnecting countless times with no luck. I'll try to send it to customer service to fix it. Hope it is not too expensive.
Thanks!
Taking advantage of this topic, is there any way to configure 'automatically answer calls' without using the touch? CM7.1-11.
Hi, I have an issue that has formed after glass replacement on my Note 2. I was extremely careful in trying not to damage anything during the replacement process and I did not use excessive heat either, keeping the screen under 170 degrees F to loosen the cracked screen. The issue is that about half the time the phone touch screen will stop working during normal use and then when I hit the lock button on the right side and then unlock the phone again it will be ok for a while before it acts up again. So far, I have done a soft and hard reset with no luck. I noticed the problem is worse when the 12 small screws in the back of the phone are very tight, I loosened them all a few turns and this helped it act up less. The pen always works. I installed a multi touch testing app and this proves that something is up because it sometimes reads fingers that arent there, generally in the middle of the screen and sometimes this programs just completely flips out and reads fingers everywhere. So at this point Im guessing that maybe the replacement glass is too close to the LCD? It also does seem to be negatively affected if I bend the whole phone slightly, this also sometimes causes the touch screen to flip out of just quit altogether. Any input is extremely appreciated!
Is there supposed to be anything between the glass and the lcd when the glass is replaced? Sorry if thats a dumb question.
Hi,
please have a look at the attached image, cause its hard to explain.
It was kind of strange... it started with some cloudy pixels in the middle of the screen, they went down to where they are now and got more intense.
Its now there since about 4 weeks without change.
Anyone experienced it? I guess I need to replace the screen, or is there any other chance? In case I have to replace it, what would I need to get? The touch screen digitzer or the full lcd display?
Thanks
Susi
susi_g said:
Hi,
please have a look at the attached image, cause its hard to explain.
It was kind of strange... it started with some cloudy pixels in the middle of the screen, they went down to where they are now and got more intense.
Its now there since about 4 weeks without change.
Anyone experienced it? I guess I need to replace the screen, or is there any other chance? In case I have to replace it, what would I need to get? The touch screen digitzer or the full lcd display?
Thanks
Susi
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Although i'm not an expert on this, But i should suggest you to replace Digitizer only because it seems like Display is okay just chemical imbalance between digitizer and display panel.
If you've proper tool to disable the device and with some flat hard plastic or something try to take this to the edge where it easily go out. To me Display seems okie. Because such things happen when we put phone in tight jeans and due to over compression such happens but it has nothing to with display panel, its just chemical in between display and digitizer.
I had an iPod 4th Gen,. Same kinda Dark black spot i've noticed after single drop on top right corner and later it disappear automatically. So just saying try that first rather buying whole new panel or digitizer. Flat blunt plastic to take that bubble to the side