Ghost touch - Nexus 7 Q&A, Help & Troubleshooting

Anyone experienced this Issue? I seem to get it every now and then.

Constantly. I thought I was going insane.

I'm getting "non touch". I'm hoping it's because of the screen protector (BestSkinsEver bulk cut to fit) I just installed (water based == possible conduction interference), but it's really impossible to use. Never happened on any other Capacitive Touch device - i* or Android. Weird.

Perhaps it's the new Corning Glass Google/Asus is using?
You have to let the water/solution dry properly first to test.

Izzue said:
Anyone experienced this Issue? I seem to get it every now and then.
Click to expand...
Click to collapse
I've had it happen too.
Now I don't hover my fingers as close to the screen as I did when I first got the N7 and that solved the issue.

Related

Need help explaining an odd issue.

I really cannot figure out this issue I'm having. Basically, I have the black rubberish/flexible case that T-Mobile sells. Once in a while, while using the touch keyboard ( stock gingerbread, I'm using cm7.) A couple letters become unresponsive. Most work, but others will not.
Weird thing is, when this happens and I take the case off, all goes back to normal. Maybe I'm missing something here, but how could the case cause this?
Sent from my HTC Glacier using XDA App
kimbernator said:
I really cannot figure out this issue I'm having. Basically, I have the black rubberish/flexible case that T-Mobile sells. Once in a while, while using the touch keyboard ( stock gingerbread, I'm using cm7.) A couple letters become unresponsive. Most work, but others will not.
Weird thing is, when this happens and I take the case off, all goes back to normal. Maybe I'm missing something here, but how could the case cause this?
Sent from my HTC Glacier using XDA App
Click to expand...
Click to collapse
Maybe the case is applying pressure to the device and for some reason making the screen less responsive. I have this with my TPU-S Curve case and the one with the kickstand on it.
I actually believe that is a CM7 bug. I have experienced the same problem on recent nightlies. Some keys on the keyboard will go unresponsive, while others will work. Occasionally the entire keyboard locks up. Once, the keyboard worked but the image of the keyboard didn't show up (tapping in random spots on a webpage resulted in text being typed, lol).
synaesthetic said:
I actually believe that is a CM7 bug. I have experienced the same problem on recent nightlies. Some keys on the keyboard will go unresponsive, while others will work. Occasionally the entire keyboard locks up. Once, the keyboard worked but the image of the keyboard didn't show up (tapping in random spots on a webpage resulted in text being typed, lol).
Click to expand...
Click to collapse
I have evil's unity rom so it cant be cm only. I havent tried the kb without the case off though.
synaesthetic said:
I actually believe that is a CM7 bug. I have experienced the same problem on recent nightlies. Some keys on the keyboard will go unresponsive, while others will work. Occasionally the entire keyboard locks up. Once, the keyboard worked but the image of the keyboard didn't show up (tapping in random spots on a webpage resulted in text being typed, lol).
Click to expand...
Click to collapse
Everyone experiences that in any rom, even stock, once in a while. The point is, some letters work, some dont. The ones that dont work usually are not even close to each other. and EVERY time it happens, I take off the case and it goes back to normal.
As for the theory that the case was causing pressure, the chances of that are slim for two reasons:
1. It hardly even reaches over the glass. at most, a couple millimeters. http://www.t-mobile.com/shop/AddOns...48e2-bb7a-0e5d354aefa7&inCart=True&catCode=21
2. Being a gel skin, it doesn't really cause pressure to the phone at all. (I could be wrong here, it just seems unlikely.)
This just baffles me because I KNOW its the case causing it but I can't begin to comprehend why.
Ace42 said:
Maybe the case is applying pressure to the device and for some reason making the screen less responsive. I have this with my TPU-S Curve case and the one with the kickstand on it.
Click to expand...
Click to collapse
Just for kicks I tried applying pressure to the edges of the screen using the gel case while typing. I also wiggled the phone around in the case so I could test all positions, all while typing away and nothing could reproduce the unresponsiveness.
kimbernator said:
Just for kicks I tried applying pressure to the edges of the screen using the gel case while typing. I also wiggled the phone around in the case so I could test all positions, all while typing away and nothing could reproduce the unresponsiveness.
Click to expand...
Click to collapse
The only solution is to ditch the case or just deal with the screen not responding.
Ace42 said:
The only solution is to ditch the case or just deal with the screen not responding.
Click to expand...
Click to collapse
I've come to this conclusion as well. The only thing keeping me from ditching the case is the fact that this is one dang slippery phone.
kimbernator said:
I've come to this conclusion as well. The only thing keeping me from ditching the case is the fact that this is one dang slippery phone.
Click to expand...
Click to collapse
Yeah that's true and I like the case to protect it when it falls.
Perhaps the gel case is electrically conductive? I noticed one day I was caught in the rain and some raindrops fell on my touchscreen, which caused random things to be selected until I wiped the water off.
It actually might not be the case... The myTouch 4G's screen has random spots that die temporarily for no reason, and keeping away from the screen or locking and unlocking it can revive the spots. It's not the case at all, probably just the time it takes you to take off the case that the spots revive and convince you that it's the case. Try letting it sit for about 20 seconds when the screen dies and see what happens.
synaesthetic said:
Perhaps the gel case is electrically conductive? I noticed one day I was caught in the rain and some raindrops fell on my touchscreen, which caused random things to be selected until I wiped the water off.
Click to expand...
Click to collapse
Water does that. Wet a paper towel and you'll see.
GazaIan said:
It actually might not be the case... The myTouch 4G's screen has random spots that die temporarily for no reason, and keeping away from the screen or locking and unlocking it can revive the spots. It's not the case at all, probably just the time it takes you to take off the case that the spots revive and convince you that it's the case. Try letting it sit for about 20 seconds when the screen dies and see what happens.
Click to expand...
Click to collapse
When at home I use the phone without the case quite regularly. I've never had this issue when the case isn't on.
In fact, I can usually (Without taking the case off) go back to the homescreen and do stuff, all spots being responsive, while the keyboard is acting funky. The keyboard itself has the issue but nothing else, even when using the same touchscreen spots.
It's such an odd correlation, the keyboard software itself and the case. Yet there has to be something that one does to the other.
Also, just to make this clear - this ONLY happens to the keyboard. If that theory was correct I would experience this in any app
I noticed this also when I first bought my phone, bought the rubber case the same day. after a couple of months, the letters towards the end of the keyboard would become less responsive and I had no idea why. took the case off and it went away. so I ditched the rubber case and got a TPU, never had the problem since then. I think over time the rubber case gets a bit stretchier and bigger, causing you to have to sort of roll your finger around/over the case to press the keyboard buttons on the end(unless in landscape mode)
You know I've always had this problem, and I thought I was the lone soul that had this retarded hardware (maybe software?) issue. I was on Royal Ginger 2.1 and never had this problem. But then subsequently left RG and started using ROM's like Virtual Fusion, MIUI, Virtual Unity, CM7 RC1 and other CM7 nightlies and all of them I've had the problem where some of my keys would just stop working, most noticeably the "delete" key. Other keys like the letters "P" and other vowels would cause the same problem as well. So I figured it's just another list to add on to the plethora of hardware defects that plagues this phone. I've used several KB's as well such as Flex T9, SwiftKey X, SmartKeyboard Pro and even the stock GB keyboard and problem still persisted in all of them.
So I thought what the hell might as well flash Royal Ginger 2.1 to see if the problem is still there and after 2 days I have yet to encounter it! So now I'm baffled... I was for sure that it was hardware related but now I don't get why it's not happening ONLY to Royal Ginger...
I have had the same case on my phone, it's a TPU case. I know it is not the cases' fault as it's always on my phone even now when I'm on RG where I have yet to experience that problem even once.
So I'm pretty much dumbfounded...
I don't think it's the case. I thought it was a ROM thing... agreeing with mackster on this... haven't had a problem while on RoyalGinger 2.1, but have encountered it on CM7 RC1, MIUI & Virtuous Unity...
Sent from my HTC Glacier using XDA App

[Q] My HTC HD2 is going berserk

Since about 2 months, my HTC HD2 sometimes runs into a strange behavior.
It's like some invisible fingers are touching the screen very quickly, triggering apps, menus, and sometimes calling people!
The only way to stop that is to restart the phone (but when the HD2 starts to behave that way, it's difficult to restart it, as these "invisible fingers" are still competing with MY fingers!).
I don't know what caused the problem in the first place, and I don't know what triggers the problem when it happens.
Is my HD2 out of order?
Thanks
Gz
It could be that your touchscreen is too sensitive and your sweat from your fingers is triggering it; Did you try cleaning the screen, your hands and using a screen protector?
your digitizer is going to die very soon
By "digitizer", you mean the touch glass?
Did it happened to you before?
Why so many of your phones had their glasses cracked?
Thanks
adempozhari said:
your digitizer is going to die very soon
Click to expand...
Click to collapse
It's very probable to happen...
Try to massage the screen around the corners especially above the buttons.
There is some kind of "glue" to prevent contact with metal but if its old or used it could make this problem.
Maby you can trigger it or at least find the point where to press to make it stop.
=> using a heating fan (warm not hot!) to vaporize water could help too maby. No warranty here!
dertester123 you may have found the real cause of the problem, but I'll have to test more before I can confirm.
Cheers.
Gz
i have been having the same problem lately and i must say, i'm pretty sure it's about the sweaty fingers! i have read on other sites that the capacitive (?) screen is too sensitive and that many are experiencing these problems, especially during summer!
JimWest7997 said:
i have been having the same problem lately and i must say, i'm pretty sure it's about the sweaty fingers! i have read on other sites that the capacitive (?) screen is too sensitive and that many are experiencing these problems, especially during summer!
Click to expand...
Click to collapse
Just place some waterdrops on the display or use it with fingers that you put some lotion on....
Problem is when it gets under the display, but thats rather uncommon i hope;D
I case its just just sweaty fingers, what are pants for?
I have the same problem but it only happens in my music app. Could this be causedby a virus of some sort?
vietnameseJames said:
I have the same problem but it only happens in my music app. Could this be causedby a virus of some sort?
Click to expand...
Click to collapse
are you running android ics? In ics they changed the input slightly i heard, and maby its not ported correctly...
When using another music app or switching to generally other apps while music plays everything is okay?
I dont think its a virus or something, most of them want to spy or change userdata and not annoy you
I thought I had found the cause of my problem, but I can't confirm it, as this problem hasn't appeared since the middle of May, when I followed dertester12's advice to massage the screen on the corners!
But I noticed a spot in the middle of my touch screen where the "glass" seems to "touch" or to be glued to something underneath it. This spot is till here today, but despite of that, the problem is not occuring now. I'll try to attach photos of that.
So to sum it up, I'm still not sure about what caused the problem...
grendizerus said:
I thought I had found the cause of my problem, but I can't confirm it, as this problem hasn't appeared since the middle of May, when I followed dertester12's advice to massage the screen on the corners!
But I noticed a spot in the middle of my touch screen where the "glass" seems to "touch" or to be glued to something underneath it. This spot is till here today, but despite of that, the problem is not occuring now. I'll try to attach photos of that.
So to sum it up, I'm still not sure about what caused the problem...
Click to expand...
Click to collapse
Did you disassemble your screen before?
Sent from my T9193 using xda premium
Nope. You think something got under the touch screen?
hengsheng120 said:
Did you disassemble your screen before?
Sent from my T9193 using xda premium
Click to expand...
Click to collapse
I'll dig out the topic.
Hangsheng I have the same problem as described at the beginning, but mine handset had replaced touchscreen with lcd panel.
What it could be the cause of this behaviour?
fikthor said:
I'll dig out the topic.
Hangsheng I have the same problem as described at the beginning, but mine handset had replaced touchscreen with lcd panel.
What it could be the cause of this behaviour?
Click to expand...
Click to collapse
Well the touchscreen must be isolated from the display. Therefore they put some blue glue at the area over the buttons where the HTC logo is. For me I used alcohol to clean the touchscreen as I replaced it and had the problem that when pressure was added the layer of glue was to thin to isolate and gave me fake inputs.
You can test by massaging this area.
Also the contacts on the backside of the screen must be isolated to the housing and the screen. I could think that when you soldered the stock isolation thinned out too..
Last but not least touchscreen, display and housing must be grounded correctly. Therefore all parts are wrapped in metallic foil at the edges... To connect them..
As the touch screen is very sensitive to even little currents its often hard to find the problem as it could also be a totally different cause.
All the above mentioned points should be checked and are relatively easy to fix. But it needs total disassembly what - especially to old devices- has a risk.
Risks are:
That damn flex cables are old and tend to break. The buttons have small tapes on top that come off easily and never go back again... And many more things that break when dis- and reassembled to often.
Sometimes it's cheaper to sell defect HD2 and buy new/used one..
On eBay you often get very good prices for defective HD2..
Gesendet von meinem HTC HD2 mit Tapatalk 2
Odp: [Q] My HTC HD2 is going berserk
The thing is every issue dissappear when it's on WinMob. I cannot pass this behaviour so decided to switch handsets. HD2 was very good phone.
Sent from my GT-N7100 using xda app-developers app

Strange S7 Edge screen sensitivity issue

The strange issue is when I'm not holding the phone (in it's cradle or sitting on my desk), the touch screen is almost dead. It takes 5-6 touches or a long press to register the touch. The strange part is when I hold the phone in my hand the sensitivity is normal (not all that sensitive but at least you can use it).
I do notice when it's out of my hands that if I touch the screen and hold anywhere with one finger and use another, It responds like normal. This makes it unbearable in the car.
I've tried the the pointer speed increase and the TSP firmware update also. But no luck.
I'm running the latest G935U rom PI3.
I've searched a lot and can't find anyone else with this same problem. Any help would be greatly appreciated.
Just tried it on my S7 Edge and touch works well.
There's a sensor called "grip sensor/detector" in our devices. It knows when You hold Your phone and when You don't. Maybe some app on Your phone is using it and somehow messes up Your screen?
If it gets too annoying then take it back to Samsung and show them the issue. They should fix it.
ProtoDeVNan0 said:
Just tried it on my S7 Edge and touch works well.
There's a sensor called "grip sensor/detector" in our devices. It knows when You hold Your phone and when You don't. Maybe some app on Your phone is using it and somehow messes up Your screen?
If it gets too annoying then take it back to Samsung and show them the issue. They should fix it.
Click to expand...
Click to collapse
Thanks for your response. That makes sense. I can't seem to find anyway to turn it off or at least modify the settings.
The only apps are the ones that come with the "U" firmware.
This might sound stupid, and if it doesn't apply to you I apologise.
But are you using a screen protector? Maybe this is inhibiting the sensitivity?
Just an idea
thedarkmunk said:
This might sound stupid, and if it doesn't apply to you I apologise.
But are you using a screen protector? Maybe this is inhibiting the sensitivity?
Just an idea
Click to expand...
Click to collapse
Not a stupid question. I forgot to mention it in the first post.
No screen protector of any kind.
BroncoKC said:
The strange issue is when I'm not holding the phone (in it's cradle or sitting on my desk), the touch screen is almost dead. It takes 5-6 touches or a long press to register
Click to expand...
Click to collapse
I have the exact opposite problem. My screen is so sensitive that every time I pick up my phone an app on the edge of the screen opens. While holding the phone, if my palm just barely touch the screen, apps will open. I've had this phone since the first day it was released and had planned to buy a Note 7 because of my overly sensitive screen. I really like this phone, best I have ever owned but I'm really getting tired of this screen issue.
Sent from my SM-T800 using XDA-Developers mobile app
Eddie Hicks said:
I have the exact opposite problem. My screen is so sensitive that every time I pick up my phone an app on the edge of the screen opens. While holding the phone, if my palm just barely touch the screen, apps will open. I've had this phone since the first day it was released and had planned to buy a Note 7 because of my overly sensitive screen. I really like this phone, best I have ever owned but I'm really getting tired of this screen issue.
Sent from my SM-T800 using XDA-Developers mobile app
Click to expand...
Click to collapse
I read quite a few posts about that same problem. I started this thread because I hadn't seen anyone with the same issues that I'm having.
Have you tried "Pointer Speed Decrease" or the TSP firmware update. Also, have you tried one of those glass screen protectors?
Just a thought.
BroncoKC said:
I read quite a few posts about that same problem. I started this thread because I hadn't seen anyone with the same issues that I'm having.
Have you tried "Pointer Speed Decrease" or the TSP firmware update. Also, have you tried one of those glass screen protectors?
Just a thought.
Click to expand...
Click to collapse
I think I remember trying that TSP thing a few months ago. I believe it doesn't work with the Verizon S7's. Changing pointer speed doesn't help. I do have a plastic film screen protector. It's hard to find a reliable glass protector which I prefer. Thanks for the suggestions anyway.

Weird touch screen issue with my phone.

My LG G6 has a really weird kind of touch screen problem. When I prop my phone into a 90 degrees place (even sometimes I flatten the phone into flat surface) , the areas that I drew in the example starts to get inresponsive.
Is this a software problem or hardware problem?
The areas that have the problem on the screen: http://imgur.com/a/kDQ7B
The video: https://www.youtube.com/watch?v=UDdoai51TrM&t=3s (Can't talk English well)
Hi. Just realised that my G6 has the same problem as yours. Doesn't really affect me too much in everyday use, but it is irritating to know that the high end phone like this has such problem . Just wondering what happen to yours now? Have u found a way to fix it? Thanks.
warriorrr said:
Hi. Just realised that my G6 has the same problem as yours. Doesn't really affect me too much in everyday use, but it is irritating to know that the high end phone like this has such problem . Just wondering what happen to yours now? Have u found a way to fix it? Thanks.
Click to expand...
Click to collapse
I fixed it by removing my glass protection. That glass made the phone's screen pretty irresponsive at those areas.
Thank you for your reply. I actually thought of the tempered glass too, but didn't expect that as the real cause. Anyway, I'll just stick to what i have now as it doesn't really impact my everyday use. Or I might try another glass brand as I dont think i will survive without screen protector, haha.

Occasional touch screen issue

Has anyone experienced touch screen issues on Android P (Oct)? Sometimes touch responsiveness becomes laggy or unresponsive until I press the power button and then it works perfectly.
It doesn't happen often but it's enough to annoy me. It usually works perfectly so I'm not sure if it's hardware. Anyone experience the same?
Sometimes. On the other hand my phone has always had problems with ghost touches where my hand is nowhere near the screen and items are selected until I hit the power button. This was before Android P.
Sent from my PH-1 using Tapatalk
Yamcha67 said:
Has anyone experienced touch screen issues on Android P (Oct)? Sometimes touch responsiveness becomes laggy or unresponsive until I press the power button and then it works perfectly.
It doesn't happen often but it's enough to annoy me. It usually works perfectly so I'm not sure if it's hardware. Anyone experience the same?
Click to expand...
Click to collapse
The same thing happens with the October patch
Thanks for replies. I guess it's safe to say that it's a common problem...
Yamcha67 said:
Thanks for replies. I guess it's safe to say that it's a common problem...
Click to expand...
Click to collapse
I don't have this issue. My PH-1 has always been spot on.
Hrm...I must be lucky I have not seen any of these problems. Even when Pie was in beta it was plenty fluid.
Apparently it's been a bit of a problem for some people. I also have issues with ghost touches. I've contacted Essential to see what can be done.
It's a shame because the phone is amazing otherwise. It doesn't happen often but perhaps once every 2-3 days? It's really strange. I'm not sure if it's due to the amount of fingerprints or some other issue. I wonder if adding a screen protector would solve it.
How often do you wipe down your screen?
Yamcha67 said:
Apparently it's been a bit of a problem for some people. I also have issues with ghost touches. I've contacted Essential to see what can be done.
It's a shame because the phone is amazing otherwise. It doesn't happen often but perhaps once every 2-3 days? It's really strange. I'm not sure if it's due to the amount of fingerprints or some other issue. I wonder if adding a screen protector would solve it.
Click to expand...
Click to collapse
Have you turned off grip rejection...
That damn thing is way too sensitive... It's designed for someone with a stump... Not hands...
It's under developer options
rignfool said:
Have you turned off grip rejection...
That damn thing is way too sensitive... It's designed for someone with a stump... Not hands...
It's under developer options
Click to expand...
Click to collapse
Even with grip detection off I still encounter ghost touches, damn annoying!!
autosurgeon said:
How often do you wipe down your screen?
Click to expand...
Click to collapse
Not often but maybe every couple days. I did contact essential but they are asking to make a video on it and see if cleaning the screen works. I'm still testing it further, it doesn't happen often but it happened again last night...
I bought this recently so I'm not sure if an update is causing this or something else. I'm not sure if the Oct update broke something because the days I owned it without that update it was fine but then again I only had it for a couple days before the update...
Also, I did turn if grip detection but didn't make a difference for the ghost touch.

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