Database Users

(SOLVED) Serious screen problem, please help!

Looks like it was my generic charger causing all the problems all along...
Too high output (6.5VDC where it should be 5VDC)
Ordered a replacement, hoping for the best.
Thanks for all the help!
Sometimes my touchscreen is just perfect. Lately, it's driving me nuts!
When I hold my finger on the screen, the touch screen registers rapid multiple touches. Possibly as many as 10 per second.
This makes dragging and long-press actions almost impossible. Scrolling is very hard and typing is a PitA.
The problem goes away at times but keeps returning. I'm not sure if I had it before the recent update.
At first, it seemed like rebooting helped but today it proved useless.
Anybody, please help!!!!
(phone was used and has no warranty coverage )

dfan said:
Sometimes my touchscreen is just perfect. Lately, it's driving me nuts!
When I hold my finger on the screen, the touch screen registers rapid multiple touches. Possibly as many as 10 per second.
This makes dragging and long-press actions almost impossible. Scrolling is very hard and typing is a PitA.
The problem goes away at times but keeps returning. I'm not sure if I had it before the recent update.
At first, it seemed like rebooting helped but today it proved useless.
Anybody, please help!!!!
(phone was used and has no warranty coverage )
Click to expand...
Click to collapse
Do you have a screen protector on the screen? Sometimes the cheaper ones are too thick and the screen doesn't register touch like it should.

Talonnb said:
Do you have a screen protector on the screen? Sometimes the cheaper ones are too thick and the screen doesn't register touch like it should.
Click to expand...
Click to collapse
Just the one that came on the phone.
Like I said, the phone works beautifully some of the time but registers multiple contacts other times.
I suspect software but it seems I'm the only person with the problem...

do you have a warranty.... sounds like a hardware fault to me.... the only way you can prove it's software (or not).. is to do a factory data reset and then run it with the standard basic build for a few days.. see if you still have problems when you don't have any other apps on the phone.

Do you have wet fingers when you experiment this behaviors?

Happens to me too. I figure its due to gunk on the screen like water, sweat your gf's makeup (a major one)
Sent from my X10a using XDA App

This happens to me too.
Only started happening since the last update so I just assumed it was a bug in the new firmware. It's like the phone lags and then catches up with itself, very annoying.

bushbox browser said:
This happens to me too.
Only started happening since the last update so I just assumed it was a bug in the new firmware. It's like the phone lags and then catches up with itself, very annoying.
Click to expand...
Click to collapse
I think it is since the update. I'd better reset the phone using SEUS and see what happens.
@ everybody, believe me, I have had the problem through a variety of circumstances and no problem with sweaty fingers etc. It seems pretty random!
I don't have a warranty so re-install here I come!

I would definetly try the factory reset first. I have had similiar issues but its only been while typing quickly. It lags a bit and then it all shows up on the screen plus a few extras of whatever the last character I typed was.
I did read somewhere, can't remember exactly where, that because our screens are capacitive they can malfunction. What I mean is this:
"Surface Capacitive touch panels: a layer that can store an electrical charge is created on the glass panel. When a user touches the monitor with his or her ungloved finger, a portion of the charge is transferred to the grounded user reducing the charge on the capacitive layer. The controller calculates, from the differences in charge at each corner and determines where the touch occurred."
Sooooo if say the ground for the screen is damaged then it will not register your touch appropriately. Hopefully it just requires a reset, cause the latter I think would be a tougher fix.
Let us know

dfan, is it happen only when you charge your phone? What charger are you use? Original?

I did a restore but no change, issue still there, it doesn't happen often though.
Dose seem like a bug and it never happened to me before the last update.
Also it happens to me when not charging.
Sent from my X10i using XDA App

very bad.. you cannot drink a cold coke and use the phone. I think that it is a hardware related problem. I was trying to reproduce the same with N1 and Legend (with my fingers flooded) without problems. So.. guys with hyperdrosis keep away from this phone!

No it's not a hardware problem as it only started happening with the last update.
Remember the x10 uses different software to nexus one or desire so can't compare with them.
I believe it's the software lagging, this update is faster overall but just lags occasionally, maybe the next software update will fix it, and if not the 2.1 update should definitely fix the issue.
Sent from my X10i using XDA App

bushbox browser said:
No it's not a hardware problem as it only started happening with the last update.
Remember the x10 uses different software to nexus one or desire so can't compare with them.
I believe it's the software lagging, this update is faster overall but just lags occasionally, maybe the next software update will fix it, and if not the 2.1 update should definitely fix the issue.
Sent from my X10i using XDA App
Click to expand...
Click to collapse
Are you pretty sure?

Tested... it is present on old roms

Well the old roms were laggy as hell anyway. It seems like classic software lag so I still think it's software.
Maybe when 2.1 is released we will find out, or even better when we get stock android running though root, that would clear it up once and for all.
My iPhone 3g also suffered from similar lag issues.
Sent from my X10i using XDA App

brunswick000 said:
I would definetly try the factory reset first. I have had similiar issues but its only been while typing quickly. It lags a bit and then it all shows up on the screen plus a few extras of whatever the last character I typed was.
...
Sooooo if say the ground for the screen is damaged then it will not register your touch appropriately. Hopefully it just requires a reset, cause the latter I think would be a tougher fix.
Let us know
Click to expand...
Click to collapse
Hells yeah I don't want a defective screen or this thing is done!
regarding your first comment, this is not lag. It is like I had a turbo button. If I touch for more than 1/15 sec, I get 2, 3 or 4 letters.
instead of one long press, the screen continually registers new presses, no matter how firm my touch is.
Imagine how much fun it is drawing the unlock pattern when my phone's in a bad mood...

That dose sound different to the small lag I occasionally experience, very odd.
Sent from my X10i using XDA App

I've reinstalled the FW and it didn't fix it.
The other day I had 5 straight hours of rapid-fire screen during which I couldn't even unlock the phone.
Gonna have to send it in for repair. Anybody know how expensive S-E are for repairs? Is it even worth doing?

I have narrowed the suspects down to my generic charger.
The charger I bought outputs over 5V (claims 6.5V) which seems to be the problem since I don't experience the issue when charging from a USB port.
New charger ordered, fingers crossed.
Thanks for all the suggestions!

Touch screen w/o touching?

I've noticed that on my NS, I don't have to actually touch the screen to tap keys. I can keep my finger slightly hovering over the glass and it still recognizes my input. Sometimes it actually causes me to mistype at a higher rate than other phones.
Are you guys seeing this too?
Sent from my Nexus S using XDA App

Glad to see I'm not the only one who's experienced this....I thought I was going crazy. It's sporadic at best, but when it happens it is annoying. I can't say for sure what causes it, but I'd love to hear other people's opinions.

I've been getting this as well.

same here. Guess they have the capacitance set a bit too high.....

yup, me too. infact. my home button gets phatom long pressed and the light is off on it...have to power it off/ turn the screen off and on muliple times. that insanity has occured about 4 times thought.

Thanks for the replies. I went back into Best Buy and tried their demo phone. So either it's supposed to be this way or they messed up a whole batch of phones. I wish I could remember whether the vibrant did this or not, but it's not standing out.

Sometimes touchscreen nonresponsive too. This is not relating to partial outer border touching either.
Sent from my Nexus S using XDA App

kjy112 said:
Sometimes touchscreen nonresponsive too. This is not relating to partial outer border touching either.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
I believe Engadget did mention did this during their review @ http://www.engadget.com/2010/12/10/nexus-s-review/.
Their exact quote: "One other thing of note -- we noticed a few missed or latent presses on the touchscreen which occasionally led to stuttery behavior or an opened item that we didn't mean to tap. It's hard to say if this was a software or hardware issue (and we know that sometimes Android devices can be particularly finicky when syncing). It wasn't a deal-breaker by any means, but we saw the issue rear its head a handful of times, and felt it was worth mentioning."

it's nothing ,, the Samsung galaxy S does that too D:

that happens due to the static on your finger.

Hi
I opened a thread (http://forum.xda-developers.com/showthread.php?t=879872) because I definitely have a problem on the back capacitive button, just wondering how many people are affected?
In fact I have seen this in four devices now, it looks that there is a batch of defective Nexus S phones out there affected by this problem?

It's normal. My Nexus One is like that too. It's magic.

So, it is normal to have un-responsive back button after some times?
Damn ... this is bad. I hope I can cope with it. I really hate hardware problem.
And still could not understand why Google cannot fix it.
Last time from HTC ...
And now from Samsung ...
*Still waiting Nexus S from UK*
nxt said:
It's normal. My Nexus One is like that too. It's magic.
Click to expand...
Click to collapse

gogol said:
So, it is normal to have un-responsive back button after some times?
Damn ... this is bad. I hope I can cope with it. I really hate hardware problem.
And still could not understand why Google cannot fix it.
Last time from HTC ...
And now from Samsung ...
*Still waiting Nexus S from UK*
Click to expand...
Click to collapse
There's a thread for the back button, that's a real issue. Some people have the Back button issue, some the Home button issue. Both of those buttons are on the outer edge of the phone, so something may be messed up when the phone was being assembled.

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

Screen responding without touching it

Does anyone else have their screen respond without touching it?
I've noticed this in go sms. On the conversation list, the last one on the screen is sometimes pressed without me touching it. I will press back and it just goes back into it.
I recently noticed in web browsing too where the screen would refresh on its own. I clued in that the refresh button is on the bottom of the screen.
Seems like the bottom maybe 2 cm of the screen sometimes responds on its own.
Is there any app that I can see where the screen is being pressed?

Settings, Developer options, Show Touches
That will visually show you where any screen touches are occurring. The screen is a bit sensitive for me sometimes, but I haven't seen anything crazy yet.
Sent from my SCH-I535 using xda app-developers app

Cicatrize said:
Settings, Developer options, Show Touches
That will visually show you where any screen touches are occurring. The screen is a bit sensitive for me sometimes, but I haven't seen anything crazy yet.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
I wish you could extend the amount of times those dots stay on the screen for.

Yeah it's unfortunately a little basic. Maybe something on the play store that could do the same thing but also have some customization?
Sent from my SCH-I535 using xda app-developers app

I have enabled it in the mean time anyway.
Is anyone else experiencing this?

Same here. Sometimes it happens to me. I would say one of 50 touches it'll react even without me pressing finger on a scren.

I definitely know what you're referring to, and it does seem to happen only on the bottom of the screen. Sometimes I'll trigger the screen if my finger is close but not touching it.
Sent from my SCH-I535 using xda app-developers app

artisticcheese said:
Same here. Sometimes it happens to me. I would say one of 50 touches it'll react even without me pressing finger on a scren.
Click to expand...
Click to collapse
Where is the press on your screen? Also the bottom?
Cicatrize said:
I definitely know what you're referring to, and it does seem to happen only on the bottom of the screen. Sometimes I'll trigger the screen if my finger is close but not touching it.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
The thing that bothered me today is that i was trying to press a button in the top left corner and the bottom link kept being pressed so I have to hit back and I was trying to beat the bottom press but I couldnt lol
I dont think there was any moisture on that part of the screen either

Yep, but not on this phone yet...
I say not yet because it's happened to me on almost every one of my touch screen phones. It seems to happen to me when the air is dry and I bet it has to do with there being more static electricity around. On those days when you're shocking everything you touch, those are the days when my phones seem to act up. It happened on my G1, my vibrant, Droid1, Droidx, and two of my bionics. All of the problems went away although on my 1st bionic it was really bad and almost completely unusable. The next day it was back to normal. Maybe it's just gremlins.

answer:
it happens if/when you use a DIFFERENT charger for the phone. you should be using the charger that comes with the phone. If you use a different charger (from a G1 or from a razr or something), then the screen tends to mess up, even when off the charger.

Lieu10ant said:
answer:
it happens if/when you use a DIFFERENT charger for the phone. you should be using the charger that comes with the phone. If you use a different charger (from a G1 or from a razr or something), then the screen tends to mess up, even when off the charger.
Click to expand...
Click to collapse
Please explain what this has to do with the charger

So just had this happed today with the "show touches" on and I did not see any touches.
I am wondering if this is a manufacturer defect now

Mine does that also, specially when I'm in the car sometimes it just randomly unlocks and I go wtf!
Sent fromTyra's galaxy siii C:

browniegirl said:
Mine does that also, specially when I'm in the car sometimes it just randomly unlocks and I go wtf!
Sent fromTyra's galaxy siii C:
Click to expand...
Click to collapse
Is yours also happening towards the bottom of the screen?

For those of you with this problem, try pulling the battery out for a minute or two and also try touching something metal if you can. You know to discharge any static built up. (Worth a shot right) When I had this problem on my Sensation everyone was reporting that it was the charger they were using. I don't know if that was correct because the problem went away even though I was still using two different chargers. One charger was for the GNEX (same as GS3) and the other was the HTC charger. I really think it has to do with static electricity build up. If you think about the way these digitizers work it really makes sense. It seems to happen to me during spring time when it's dry and windy.

Paging Dr B said:
For those of you with this problem, try pulling the battery out for a minute or two and also try touching something metal if you can. You know to discharge any static built up. (Worth a shot right) When I had this problem on my Sensation everyone was reporting that it was the charger they were using. I don't know if that was correct because the problem went away even though I was still using two different chargers. One charger was for the GNEX (same as GS3) and the other was the HTC charger. I really think it has to do with static electricity build up. If you think about the way these digitizers work it really makes sense. It seems to happen to me during spring time when it's dry and windy.
Click to expand...
Click to collapse
That is a good theory, but why would the static shock only be hitting the bottom part of the screen?

i don't know why. but i'm sure it's the charger. this happened back in the G1 days when android first came out. i did so many "experiments" with different chargers to figure out what was causing the screen to be all glitched like this. found out it was the charger. same thing happened with my vibrant, and same thing happened with my sisters sgs2.

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.