Touch Screen not functional - G4 Q&A, Help & Troubleshooting

I have noticed that my notification bar doesn't drag down when the phone is placed on a flat surface !
When i hold it in hand i can drag down the bar , but on the table it just clicks anywhere else !
Anybody faced that ?

yes, same issues here , when i put it on sofa or any flat surface i can't use 2 finger to zoom for example, and the touch become not normal , in hand it is perfect .

it appears that there might be some sort of grounding issue in g4 similar to what was found in the OPO. I've reproduced this behaviour on my phone. If the phone is on charge, or being held in hand, or on lap etc, essentially if the phone is grounded, then it works properly. Once the phone isn't grounded, then the touch issue becomes apparent

This happened to my G2, especially when it got warm. I was told that it was the digitizer..

Related

Improperly grounded touchscreen?

My capacitive touchscreen has been having a pretty odd issue. If I lay the phone on a bed or desk and try to use the touchscreen with only one finger, I get all sorts of weird input on the screen. Then, if I touch the phone casing while repeating the same motion with the same finger (anywhere on the side of the casing or rear panel) the touchscreen works flawlessly.
Right now, my device is sitting on my bed, if I unlock it and try to pull down the notification window shade with just one finger, it's impossible. If I touch the casing with another finger and then try to pull down the shade, it's flawless.
From my understanding, in a capacitive touchscreen, a layer of electrons (ions?) is passed over the screen and a sensor detects where the flow of electrons is interrupted by the electrical conductivity of the human body. It seems that my phone is having issues with the electrons not just flowing over the screen, but around the casing as well, causing issues.
Anyone else experiencing this?
DaytonaZ33 said:
My capacitive touchscreen has been having a pretty odd issue. If I lay the phone on a bed or desk and try to use the touchscreen with only one finger, I get all sorts of weird input on the screen. Then, if I touch the phone casing while repeating the same motion with the same finger (anywhere on the side of the casing or rear panel) the touchscreen works flawlessly.
Right now, my device is sitting on my bed, if I unlock it and try to pull down the notification window shade with just one finger, it's impossible. If I touch the casing with another finger and then try to pull down the shade, it's flawless.
From my understanding, in a capacitive touchscreen, a layer of electrons (ions?) is passed over the screen and a sensor detects where the flow of electrons is interrupted by the electrical conductivity of the human body. It seems that my phone is having issues with the electrons not just flowing over the screen, but around the casing as well, causing issues.
Anyone else experiencing this?
Click to expand...
Click to collapse
This appears to be a significant issues of owners of the HTC Incredible. You might get more useful information in that board, seeing as how they've been experiencing it for much longer than we have.
Wow, the video that they have on the Incredible forums of the phone on the Styrofoam is exactly the same issue I am seeing on my device.
I would link it, but apparently new users aren't allowed links. Ugh, this is a real bummer. Especially since that guy had 2 replacements sent to him, both with the same issues.
I too am experiencing this. I want you to try something a little different. Pull the kickstand out and stand it up on the bed. Then put your finger on the kickstand and you should be able to pull the notification bar down all the way to the bottom and let it lock with your other hand while still keeping the finger on the kickstand. Then take that finger off of the kickstand then slowly bring the notification menu bar back towards the top with your finger. Tell me your results. And i'll let you know if we had the same.
It appears that HTC has got some serious quality control to enforce on their recent devices. At this point, releasing a flagship phone with these issues is nothing short of unacceptable. I'm as big of an HTC fanboy as they come, but I'm really considering switching loyalties to Motorola is this crap continues. It's bad enough being capped at 30fps on the Evo.
If I put my finger on the kickstand I can pull down the notification bar completely, without issue. When I let go and pull the bar up, it works, but looks like it is trailing behind where my finger is by about a half inch, until I get roughly 3/4 of the way up to the top then it passes my finger like i'm not touching the screen anymore.
DaytonaZ33 said:
When I let go and pull the bar up, it works, but looks like it is trailing behind where my finger is by about a half inch, until I get roughly 3/4 of the way up to the top then it passes my finger like i'm not touching the screen anymore.
Click to expand...
Click to collapse
That might be the touch input lag we're experiencing as well. This may be tied to the 30fps graphic limit on the Evo.
The 30 fps limit is disconcerting, but that seems like it is something that could be fixed through firmware, however I doubt this issue is fixable.
Yeah, that's the exact same response I received from it; except when going back up, i reached the 1/2 way point on the screen and the notification bar shot up.
Android Believer said:
Yeah, that's the exact same response I received from it; except when going back up, i reached the 1/2 way point on the screen and the notification bar shot up.
Click to expand...
Click to collapse
Well this is slightly depressing.
Ugh, my curiosity got the best of me, and the results aren't pretty.
When I lie my Evo down on a flat surface, the notification bar becomes absolutely impossible to pull down unless another finger touches any part of the phone. A test on the multitouch visualizer app shows that the screen completely stops recognizing my finger when y1 is equal to 40. This is essentially the entire height of the notification bar.
This isn't a deal breaker in any way, but what the ****, HTC? Is this how you treat your customers?
On mine, my screen becomes effected as early as y=500, then gets really bad around y=250, then is completely unresponsive after y=100.
Mecha2142 said:
Ugh, my curiosity got the best of me, and the results aren't pretty.
When I lie my Evo down on a flat surface, the notification bar becomes absolutely impossible to pull down unless another finger touches any part of the phone. A test on the multitouch visualizer app shows that the screen completely stops recognizing my finger when y1 is equal to 40. This is essentially the entire height of the notification bar.
This isn't a deal breaker in any way, but what the ****, HTC? Is this how you treat your customers?
Click to expand...
Click to collapse
wow, that blows, mine does the bad response -40 thing. holy ****, it's really just one thing after another with these phones...
I guess there is no such thing as a perfect phone no matter how much money, research, and time is invested into it.
I too have this issue, I have noticed occasionally its hard to pull out the notification bar, but when I pick up the phone and pull bar with other hand it works perfect.
For the heck of it I tested my Evo on every surface i could my hands on from glass, to thick carpet, bed sheets, etc, etc. Mine doesn't seem to have this issue, so it's definitely not every phone. If it's a big issue for you, you may want to see about getting it replaced.
Darth Duane said:
For the heck of it I tested my Evo on every surface i could my hands on from glass, to thick carpet, bed sheets, etc, etc. Mine doesn't seem to have this issue, so it's definitely not every phone. If it's a big issue for you, you may want to see about getting it replaced.
Click to expand...
Click to collapse
Thanks for the thoroughness of your test!
http://www.youtube.com/watch?v=_kJ_fR02suQ i recorded it so people can see what's going on.
Have any of you contacted Sprint about this? I'd definitely try to get it replaced ASAP if I were you, hopefully the next one won't have this problem.
I spoke with a lady from HTC today and she said that they were aware of the grounding issue before it was released (during training). She didn't say whether it could be fixed or not though.
mine works perfectly fine i just tested it right now
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[Q] Xperia arc screen too sensitive?

Hi all,
I simply love this phone, but I'm facing a situation that my screen is too sensitive. The home screens were so sensitive a few programs were started without my knowledge. It got better after I switched to Launcher Pro.
However, it is still too sensitive in other areas. When I'm scrolling down, say, the apps in Market, I'll always end up selecting a few items accidentally before I reach the end of the list.
I've used HTC Desire in the past and I'm quite sure the problem is not due to me.
Does anyone else face the same problem, or I have a hardware problem? Or software problem? Can I be tweaked by any means?
Any feedback would be useful! Thanks!!!
KG
I faced this problem before... while swiping, apps accidentally open. But instead of "too sensitive" i thought it's insensitive... because a short swipe was sometimes interpreted as a tap (maybe because the swipe was not fully detected?).
Anyway, I had 2 layers on my device... the pre-applied sheet and another screen protector that came with the box.
I removed the second layer, leaving only the pre-applied sheet, and all is well again... no more accidental "taps"
vincent.hsy said:
I faced this problem before... while swiping, apps accidentally open. But instead of "too sensitive" i thought it's insensitive... because a short swipe was sometimes interpreted as a tap (maybe because the swipe was not fully detected?).
Anyway, I had 2 layers on my device... the pre-applied sheet and another screen protector that came with the box.
I removed the second layer, leaving only the pre-applied sheet, and all is well again... no more accidental "taps"
Click to expand...
Click to collapse
Dude, you mean the cause was the screen protector that came with the phone???
kargtan said:
Dude, you mean the cause was the screen protector that came with the phone???
Click to expand...
Click to collapse
For my case, maybe 2 layers is just too thick
I'm having the same problem. And that solution seems to make sense. I would give it a try, but if the problem still occurs, I'd be wasting one screen protector..
zha1 said:
I'm having the same problem. And that solution seems to make sense. I would give it a try, but if the problem still occurs, I'd be wasting one screen protector..
Click to expand...
Click to collapse
That was how I solved my problem. I actually put on the spare screen protector because when I got the set I didn't realize there was already a pre-applied layer.
Don't blame me if it doesn't work for you
perhaps some of you guys just have the shakes?! ;-p
I guess the screen is never to perfect for everyone.
kargtan, I've noticed the same about the tap sensitivity - I often accidentally "tap" when I mean to swipe. Came from an iPhone 3g and didn't notice this on that device. Might be a matter of getting used to it, not sure. Have you gotten any feedback from others in other forums?
I've noticed this too, and put it down to the screen protector. It's not android OS causing it, never had the problem on my htc hero...
However, now that i've gotten used to the phone it doesnt do it any more - guess my brain has automatically trained itself to drag the screen a little bit more firmly or something.
One thing i have noticed about the arc is: because the bezel around the screen is so thin, i often accidentally launch apps just by holding it. My fingers wrap around slightly & touch the edges of the screen.
Does any of you have problems while trying to swap a screen from another and instead of swapping you get like a "bounce" and stay on the same screen? because that happens to me all the time, I came from an htc Legend and this is making me crazy !
btw, this happens to me if I hold the phone with my right hand and try to do the swapping with my thumb, the only way to get it right is to hold the phone with my left hand and use the index of my right hand
Screen too/not sensitive
Hi guys,
I think the problem arises from the slowness of the phone, not "too sensitive". I used to use the HTC Desire in the past and I was very used to the screen scrolling very quickly. In contrast, the arc is slower and hence the screens don't scroll as fast and hence my way of handling the Desire would cause the problems stated.
I did a few things since my last posting and it seems better now:
Replace the SE Home with Launcher Pro - this seems to have improved on the speed of the phone, and hence better responsiveness to the touch.
Rooted the phone and uninstalled some stock programs.
Removed useless widgets on the desktops.
Adjusted my way of scrolling as someone has suggested.
This is quite frustrating at times, especially so because other than this problem, this phone is a gem, especially its form factor, the sound quality and most importantly, the quality of the camera.
I might sell the phone once the company issues me with a Blackberry (DANG!), but I am kinda unwilling because I have been taking lots of photos with my Android phones and these photos are generally well-liked by my Facebook friends.
agree with bezel thing and hard to use thumb.
noticed arc screen (the screen guard perhaps ) easily get oily and slippery.
had to wipe phone and wash hand so often that make me like some sort of disorder.
Don't know why you guys seem to be having problems... I don't have any issues with my screen swipes at all... smooth and fast.. both on stock and Launcher Pro..
Same deal here. But that's because the screen is sensitive beyond the display area including the black border, and the edge is too narrow. When I use one hand swiping or tapping, the palm of my hand touches the black border. The screen registers two touches in quick succession and thus jumps.
In Phone keypad, enter *#*#7378423#*#* (the numbers mean SERVICE word in keypad), you can go into test mode. Select [Service test]->[Touch Screen] to test the badly touch screen of SE Phones.
You will discover when you swipe the edge of touch screen, the touched result is very not satisfied. The lines you swiped will not accurate and appear like jags, or stick on the edge of the screen.
The touch panel made in China...? ;-)
Me too!
Hey!
i also have a xperia tipo....and i too have the sensitive problem
Could also be a kernel problem?
I remember I installed a kernel a while back that would make my screen hypersensitive; just hovering over the screen would already activate it!
I don't remember which one, it was back in the GB days. But I'm pretty sure it can be changed in the kernel.

[Q] Housing creaking noise?

Hi,
Some time after buying my gnex it was charging on my computer desk with the USB hooked up, the cable got tangled in my chair and when I went to get the door, it slingled the phone across the room.
Luckily I couldn't detect any visual or functional defect, but after a while I noticed that if I apply some pressure to the lower left part of the device, on the screen, there is like a creaking noise, as if I can move the screen around a fraction of a mm inside the housing. I can also flex the screen when applying pressure on the top right of the screen where the front facing camera is.
Probably happened from the fall or do others have this?
I also have this very rare graphics glitch, when swiping homescreens, only happens when going from one particular homescreen with gmail widget to the one with the calendar widgt, there is like a tear in it, only lasts for a split second.
Sounds like the screen got loose when it flung across the room I don't have that issue with mine call for a replacement say its been like that since day 1

htc Desire 610 Touch screen issue

My 5 month old htc Desire 610 has encountered some Touch Screen issues. It has two "blank" or "broken" vertical lines where the touch screen does not respond and sometimes momentarily the entire touch screen doesn't work. For the past month, applying pressure to the rear upper right hand corner, behind the front facing camera, seemed to provide a temporary fix until now. I have ordered and replaced the entire touch/display but the problem still occurs. It is driving me MAD.
I think what caused it was a silicon case which I had, and when I was bored I would pull it off and on starting in the upper right corner.
The pictures I attached shows when I drag my finger slowly from left or right, a circle is made and the size depends on how long I left my finger there, my phone thinks I am leaving my finger just left of the two lines before continuing on the other side of the touch-screen-blank lines.
This all sounds confusing but help is very appreciated
I found the problem!!
I took the phone apart and placed a small padding behind the touch screen connector (the one coming from the top) and BANG! It works.
This may solve other touch screen issues out there.
Same Issue - Any Advice?
phcreery said:
I found the problem!!
I took the phone apart and placed a small padding behind the touch screen connector (the one coming from the top) and BANG! It works.
This may solve other touch screen issues out there.
Click to expand...
Click to collapse
I'm having the same issue, also have a silicone BodyGlove case which I also flip on and off when I'm bored and it's started screwing with the touchscreen. How'd you get the case of the phone open, what material (i presume something non-conductive) did you use for the padding, and do you have any pictures? I plan to document this procedure when I do it and post for reference. My phone is just over 7 months old, and I don't want to have to buy a new one just yet.
Thanks,
Thanks worked
Sent from my a3ul using XDA Free mobile app
Sometimes my phone gone blank while I using I have to close the apps and open again
phcreery said:
I found the problem!!
I took the phone apart and placed a small padding behind the touch screen connector (the one coming from the top) and BANG! It works.
This may solve other touch screen issues out there.
Click to expand...
Click to collapse
Works in my case too.
Thanks.

Bending disconnects screen?

My HTC One (M8) started to have flickering screen issues a few days back, sometimes the screen wouldn't turn on, occasionally it would turn on, but it was barely noticeable, because the backlight didn't turn on. I realized that slightly bending (no extreme force, of course) would influence the behavior: Top left, bottom right as pressure points makes the screen work, top right, bottom left makes it stop working. Similarly applying pressure on the sides (the middle of the lower half, roughly) makes the screen not work. It looks like it might just be a loose connection somewhere? Anybody have a tip for what to do about it?
And now the screen doesn't turn on at all anymore. I guess that was expected. I googled around a bit and it seems like the company doing repairs for HTC in Austria is shady and known for blaming things on mechanical or water damage (the phone fell down, but that was about six month ago, and except for a few scratches on the metal nothing happened).
Does anyone have an idea if this might just be a loose contact somewhere that I could fix by myself?

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