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So, my current XT720 started having episodes of that dreaded "ghost touches" insanity two weeks ago with escalating frequency. Last week it started to happen roughly every two hours. I found that wiping the screen off on my shirt would help for a few minutes, but I just assumed placebo effect (somewhere I had read that the ghost touch problem results from ground wires coming loose--so I was contemplating disassembling and reassembling--except I can never get that stupid "8.0 xenon" sticker to come off cleanly in the past so I was holding off). On a whim I googled a bit and found on a droid forum that someone was claiming that cleaning the screen with an electronic wipe solution solved the problem but that success can depend on which cleaning solution was used. I was skeptical, but I had a pack of Windex electronics wipes so I figured "try it"... the ghost touches disappeared immediately and have not returned (it's been 5 days). So, clearly some sort of residue on the screen was responsible.
So that got me thinking. I'm currently using an XT720 I got used that came without a screen protector (My wife is using my original one that has a zagg invisible shield since day one and has never had a ghost touch problem). When I got my current one, I debated whether or not to install a screen protector and decided to give it a shot without (which is really nice by the way--the screen does not scratch even when you forget and drop your keys in the same pocket--but it does develop get a weird patina which is what the cleaning seems to have removed--the zagg has a nice feel to it, but it's got a strange uneven surface that takes some getting used to, so the shield-free experience was a nice change for the fingers--my only objections were that sometimes it seemed way to sensitive to touch and that the bevel edges around the screen feel too recessed so the design seems to anticipate that a screen protector is installed).
So, my question is: I can hand-wave an explanation that a conductive/capacitive membrane develops on the surface of the screen and interferes with normal operation of the digitizer. And that perhaps a screen protector counteracts this either by keeping whatever this conductive/capacitive residue is slightly further from the digitizer or possibly by preventing generation of this residue due to different surface properties. Have people had the ghost touch problem with screen protectors?
I can t really help you i never try any screen protection
But i had ghost touches but not at all like yours it happened 5times max(in 2years of heavy use) i think and always when it was raining when my screen get a little wet... and it stop maybe 5min after drying the screen
Never got it with out rain...
Same for me... the phone start to open apps alone jaja xD
Sent from my XT720 using XDA App
I've had the ghost touch problem twice now, both with screen protectors. The first time was with the screen protector that came with my Otterbox and the second was with the protective film that comes with the phone new (it worked fine to my surprise). Each time, it happened about 6 months after receiving the phone. However, I've not tried the electronic wipe solution nor any physical disassemble/reassemble operations.
BTW...my previous thread about this: http://forum.xda-developers.com/showthread.php?t=1102074
Hm, seems like what's actually happened is that the left-most strip of the screen doesn't respond to touch at all anymore. I just found it's difficult to type "q" and "1" So, probably the ghost touching was while that element was dying. It's still mostly usable (I can get the q and 1 by slowly moving my finger from the edge). If it gets worse I'll have to think about repair, I guess. I see the glass is available from ebay and I've also amassed a few for-parts XT720s so I've been looking into what's involved in replacing the digitizer but I can't figure out how to remove the front glass from the chrome frame...
Mioze7Ae said:
Hm, seems like what's actually happened is that the left-most strip of the screen doesn't respond to touch at all anymore. I just found it's difficult to type "q" and "1" So, probably the ghost touching was while that element was dying. It's still mostly usable (I can get the q and 1 by slowly moving my finger from the edge). If it gets worse I'll have to think about repair, I guess. I see the glass is available from ebay and I've also amassed a few for-parts XT720s so I've been looking into what's involved in replacing the digitizer but I can't figure out how to remove the front glass from the chrome frame...
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Click to collapse
Hello guys,
I had these "ghost touches" until two weeks ago. Then, I installed a screen protector and had no problems at all later. I am not an expert of touch technology, but I assumed that putting something between the dirty and the screen would help, and I can say I was right so far
Ah, just one note: just before applying the screen protector, be sure to clean perfectly the screen, otherwise it will not counteract the problem (use for example an electrostatic "cleaner" and a properly clean cloth).
Hope this helps!
I bought xperia z1 two weeks ago.
Yesterday I removed the shatter proof film front and
back but now I have touch issues with the screen
sometimes not respond and always when touch
some point it touches it two or three times like
when iam browsing and want to go to the previous
page when back button touched it brings me to two
previous page.
Then I knew that the glass isn't oleophobic like the
shatter film.
What's the solution for me??!
Please reply
Belal94 said:
I bought xperia z1 two weeks ago.
Yesterday I removed the shatter proof film front and
back but now I have touch issues with the screen
sometimes not respond and always when touch
some point it touches it two or three times like
when iam browsing and want to go to the previous
page when back button touched it brings me to two
previous page.
Then I knew that the glass isn't oleophobic like the
shatter film.
What's the solution for me??!
Please reply
Click to expand...
Click to collapse
maybe theres still some hidden glue left on the screen give it a good clean
to make sure if theres glue left try to breath on it you'll see if theres odd shapes forming from the condensation i remember that it clearly showed the glue when i did on mine
Belal
zzcool said:
maybe theres still some hidden glue left on the screen give it a good clean
to make sure if theres glue left try to breath on it you'll see if theres odd shapes forming from the condensation i remember that it clearly showed the glue when i did on mine
Click to expand...
Click to collapse
Firstly thanks for your response
I cleaned the screen many times with piece of cloth and water but the problem stills
Is there some method to clean the display i don't know??
Belal94 said:
Firstly thanks for your response
I cleaned the screen many times with piece of cloth and water but the problem stills
Is there some method to clean the display i don't know??
Click to expand...
Click to collapse
try windex
I have the exact same problem after removing the anti shatter film.
Has anyone else noticed this? If yes did one of you put another third-party screen protector on your phone afterwards and did this solve the touch-problems ?
Greetz
the problem solved
I put screen protector and touching screen is now ooth and slippery
But it's shame to sony to make their phones not oleophobic screen and put cheap film on the phone that gets scratches easily??
Sony wake up how you didn't notice problem like this??! .
I have touch issues every now and then with the shatter proof film on...
Mostly on the lower half of the screen...
Edit= its scratched up too
And BTW does removing it increase the brightness and/or change the hue of the screen(like the yellow hue most ppl get)
Sent from my C6903 using XDA Premium 4 mobile app
I wonder why you remove asf.....
I'm also having these problems, I just removed ASF because it got some pretty nasty scratches from being in my pocket jeans with no other items (I'm still in shock at how easy it gets damaged). I'm also having issues primarily with the soft keys, it goes all crazy and recognizes multiple touches, seems that other parts of the screen are not affected (I tested this particular area of the screen in landscape mode and seems to have this problem in whatever the area is displaying). No oleophobic screen also noticeable, so my search begins for a good screen protector.
It looks quite amazing without the Sony logo though.
What would compel you to take out the factory shatter proof film from Sony?
Sent from my C6903 using Tapatalk
diffstyle said:
What would compel you to take out the factory shatter proof film from Sony?
Sent from my C6903 using Tapatalk
Click to expand...
Click to collapse
Scratchs? I also saw people doing this on Dell 40" LED Screen to improve image quality but you risk to damage the Phone or the Display so I don't know how much is it worth.
diffstyle said:
What would compel you to take out the factory shatter proof film from Sony?
Click to expand...
Click to collapse
As the previous reply said, scratches are probably a good motivator. Sony won't replace the ASF film under warranty and since many people have it scratched, they are probably quite tempted to just remove it..
eclyptos said:
Scratchs? I also saw people doing this on Dell 40" LED Screen to improve image quality but you risk to damage the Phone or the Display so I don't know how much is it worth.
Click to expand...
Click to collapse
Not to mention the fact that at least according to Sony, the film is supposed to make the touchscreen more sensitive and accurate, and after removing it, it will be too late to put it back.
diffstyle said:
What would compel you to take out the factory shatter proof film from Sony?
Sent from my C6903 using Tapatalk
Click to expand...
Click to collapse
Because when I look at my screen in my "flagship" 2013 phone I don't like seeing scratches, what is the point in having a device with FullHd Triluminos display etc etc when I can't enjoy it because of Sony's poor quality ASF..personally I don't know how someone thought of this as a standard, but hey I'm no engineer. By the way I applied a screen protector and everything's back to normal.
I for my part removed the ASF because my phone fell around 30cm on the floor, so almost just tickled it, and took such nasty and heavy scratches from it that it was impossible to keep it that way. Also it had a lot of minor scratches from just keeping it in my pocket.
What I can confirm is, that the touch issues are especially in the lower part of the screen. Also it seems like this problem occurs more often if the phone is "cold", for example if I use it outside.
I hope that this will be fixed software-wise through firmware/app (by better calibrating or smth like that) or trough a 3rd party screen protector.
the winter solved the issue
I removed the screen protector but there's no issues with touch screen
I think the problem is only in summer or hot climate because fingers have alot of oil in this time
what!!
Belal94 said:
I removed the screen protector but there's no issues with touch screen
I think the problem is only in summer or hot climate because fingers have alot of oil in this time
Click to expand...
Click to collapse
Wow what a strange solution..what made you remove it in the first place? Was there any other change in circumstances that could explain the fix? I'm really interested since the way you explained your problem in the first post was exactly my issue as soon as I removed the ASF.
I'm waiting on 4.3 to even consider removing the screen protector as it cost me a lot of trouble putting it without a single particle of dust/bubbles/alignment. Anyway I live in a place where there's no "winter", it's always hot in here.
Actually it happens more in winter for me... Maybe because of the static electricity I guess... And the Aluminum frame...
Since 4.3 update, touchscreen problem is worse, even with the screen protector it sometimes skips when trying to use Swype keyboard in all situations, with or without case, cold or hot weather, touching the aluminium frame or not..seems to have something to do with oily fingers. Still hoping that a firmware update may correct it.
feddexx69 said:
Since 4.3 update, touchscreen problem is worse, even with the screen protector it sometimes skips when trying to use Swype keyboard in all situations, with or without case, cold or hot weather, touching the aluminium frame or not..seems to have something to do with oily fingers. Still hoping that a firmware update may correct it.
Click to expand...
Click to collapse
I do not use swypette but same here, after update the touch screen is worse. I know the sensitivity or the respond of the touch can be modified but at the moment everybody have something else in mind than try to fix this.
I'm not a screen protector salesman, nor do I have stock in one. This worked for me, but your milage may vary.
I updated to 5.1 yesterday and since then, every single time I made a call my screen would go black and become unresponsive. When the person at the other end hung up, it would eventually come back. I figured it was the rom and/or kernel. I tried as many rom, kernels and combinations as I could and nothing. I eventually found a thread sharing that the sensor became more sensitive in the upgrade and even if you never had an issue in 5.0, your screen protector is probably the issue. I thought no way, I paid like $20, really liked the protection and it never caused an issue, it was a tempered glass protector and clear as day, but I was desperate.
The second I took it off and pressed enter on a call, no black screen. I could actually make a call, cover the sensor with my protector and the screen went black.
I know it sucks, i really didn't want to change my protector, but I could not use the phone the way it was.
jackpollard said:
I'm not a screen protector salesman, nor do I have stock in one. This worked for me, but your milage may vary.
I updated to 5.1 yesterday and since then, every single time I made a call my screen would go black and become unresponsive. When the person at the other end hung up, it would eventually come back. I figured it was the rom and/or kernel. I tried as many rom, kernels and combinations as I could and nothing. I eventually found a thread sharing that the sensor became more sensitive in the upgrade and even if you never had an issue in 5.0, your screen protector is probably the issue. I thought no way, I paid like $20, really liked the protection and it never caused an issue, it was a tempered glass protector and clear as day, but I was desperate.
The second I took it off and pressed enter on a call, no black screen. I could actually make a call, cover the sensor with my protector and the screen went black.
I know it sucks, i really didn't want to change my protector, but I could not use the phone the way it was.
Click to expand...
Click to collapse
which screen protector? if it's not properly cut or is an old plastic type protector that's probably the problem. The good properly cut tempered glass screen protectors don't seem to have this issue.
Same problem here, but worse.
When the screen went black during the call, the phone shut down, and has been misbehaving ever since, I've still not been able to unlock it fully. I suspect the Device Protection feature of 5.1 (anti-theft) to be the cause of the problem...
Images of problem: http://imgur.com/a/cizWc
Any idea of what I should do?
neyenlives said:
which screen protector? if it's not properly cut or is an old plastic type protector that's probably the problem. The good properly cut tempered glass screen protectors don't seem to have this issue.
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Click to collapse
I used Skinomi Tech Tempered Glass ultra thin, it was rated well. It did cover the sensor, but like I said, never had an issue on 5.0 and and once I took it off, worked like a charm. You have a suggestion for a good tempered glass protector?
Baalinooo said:
Same problem here, but worse.
When the screen went black during the call, the phone shut down, and has been misbehaving ever since, I've still not been able to unlock it fully. I suspect the Device Protection feature of 5.1 (anti-theft) to be the cause of the problem...
Images of problem: http://imgur.com/a/cizWc
Any idea of what I should do?
Click to expand...
Click to collapse
Dang man, that's way past my "take the screen protector off" fix. I'm thinking you have a more complex issue. Were you unlocked and rooted? Custom rom or kernel? The allow oem unlock checked in dev settings? Can you do a full wipe and step through the flash process in fastboot?
Completely stock. I found a workaround. Remove the SIM card before powering-up. This time I am first asked to draw my unlock pattern, as it is supposed to do. Then, let the phone boot to my homescreen and then only I replace the SIM card. I am asked for my PIN et voilà.
I think the new anti-theft feature is indeed at fault. It is somehow overridden by the PIN request. Oh well, at least my phone works now
---------- Post added at 02:55 PM ---------- Previous post was at 02:44 PM ----------
Regarding the screen proximity sensor problem.
Do you think a deliberately smaller tempered glass screen protector would work?
http://www.amazon.com/Orzly®-Tempered-Protective-Protector-SmartPhone/dp/B00ORYY4IO
Where is the sensor located on the screen? Between the camera and top speaker?
I've been using a Zagg GSP with the same problems... So far removing it has been my only fix. Didn't have problems before 5.1 even with some haloing!
I think the proximity sensor is to the left of the top speaker. If you hold the phone just right in the light you can see two little dots under the glass.
rmanaka said:
I've been using a Zagg GSP with the same problems... So far removing it has been my only fix. Didn't have problems before 5.1 even with some haloing!
I think the proximity sensor is to the left of the top speaker. If you hold the phone just right in the light you can see two little dots under the glass.
Click to expand...
Click to collapse
You should call Zagg at 18007009244 . I just called and they said that it was the first reported case, and that if enough people called in, they would investigate. They also said that you can remove the existing screen protector, use some other one, and just get a warranty replacement if/when a new Zagg GSP comes out.
Xtremeguard fixed this issue in their spartan glass. They also fixed the "halo-ing" issue many protectors have. They made cutouts for the camera and sensors. I'll post pics once I get home. I encountered OPs glitch with the original spartan glass I had (1st gen?).
jackpollard said:
I used Skinomi Tech Tempered Glass ultra thin, it was rated well. It did cover the sensor, but like I said, never had an issue on 5.0 and and once I took it off, worked like a charm. You have a suggestion for a good tempered glass protector?
Click to expand...
Click to collapse
Hey man, as I suggested, try xtremeguard. Here are some pics and they have cutouts for the camera and sensors. They usually have sales; don't buy it regular price, its ridiculous! Here's a code I found that works if you purchase two items: Spring90
Or if you want just one, use 75off
I just use their glass protectors on all my devices and I've had good experiences with them. They now ship their glass in a hard plastic case; less chances of breaking. Pictures attached!
Is this issue really just limited to people with screen protectors? I have the Zagg HDX and am having this same problem. I really don't want to replace my screen protector and don't want to have to go back to a non 5.1 ROM. Unfortunately I do spend a lot of time making phone calls at work and need to dial extensions which I'm unable to do because of this.
Are there any kind of Kernel modifications or system settings that can be adjusted to fix the issue?
drscott333 said:
Is this issue really just limited to people with screen protectors? I have the Zagg HDX and am having this same problem. I really don't want to replace my screen protector and don't want to have to go back to a non 5.1 ROM. Unfortunately I do spend a lot of time making phone calls at work and need to dial extensions which I'm unable to do because of this.
Are there any kind of Kernel modifications or system settings that can be adjusted to fix the issue?
Click to expand...
Click to collapse
Yes it really is. I had the problem on my Nexus 4 with a protector so I made sure to buy a protector with cutouts on my Nexus 5. I thought they would have fixed it on the Nexus 6, although it is still very sensitive. I had the problem with a full glass protector and my screen would stay off during a call even after using the power button. So I emailed xtremeguard and fortunately they modified their guard to have cutouts for the sensors as you can see in the pics I posted on the last page.
Same behavior with Skinomi tempered glass protector. Took it off and the phone works fine.
drscott333 said:
Is this issue really just limited to people with screen protectors? I have the Zagg HDX and am having this same problem. I really don't want to replace my screen protector and don't want to have to go back to a non 5.1 ROM. Unfortunately I do spend a lot of time making phone calls at work and need to dial extensions which I'm unable to do because of this.
Are there any kind of Kernel modifications or system settings that can be adjusted to fix the issue?
Click to expand...
Click to collapse
There was some talk about an issue with the sensors and 5.1 causing the issue also, but it seemed it was a small minority that had this issue. As far as I know, you have to bite the bullet and peel off the protector. I tried 3 different kernels and 3 different roms and nothing at all worked. The good news is they have plenty of cheap alternatives that have the cut-outs. Good luck.
jackpollard said:
I used Skinomi Tech Tempered Glass ultra thin, it was rated well. It did cover the sensor, but like I said, never had an issue on 5.0 and and once I took it off, worked like a charm. You have a suggestion for a good tempered glass protector?
Click to expand...
Click to collapse
Skinomi is aware of the issue. I wasn't sure what was causing it until i found this thread. Removed my protector and problem was fixed. It looks like Skinomi is aware of the issue though, contacted them and got a replacement since i had removed my glass protector. The replacement glass no longer covers the sensor.
No need to remove your screen protector. Just head to Accessibility--> Turn on 'Power Button ends call' and Boom!
I too had the same problem just after upgrading to 5.1
Tried this and it works like a charm. No issues till now. I hear that 5.1 messed the sensitivity of the proximity sensors. But lucky enough for us, 5.1.1 has a patch to fix this issue. Till you get an update for 5.1.1 just keep enabled Power Button ends call, and you'll be just fine. No need to spoil your completely alright $20 screen protector
Thanks!
The only thing that worked for me !
Hi,
I empathize with you. I found myself buying a Nexus 5 in India in 2013 with a lot of excitement and the same happened after upgrading to lollipop and then marshmallow. I removed am imported tempered glass screen protector and that didn't work. Next, I downgraded to KitKat 4.4.4 and that didn't work. Google's product forum was a waste of time. Their rep said the same things: remove the screen protector, clear cache and finally do a factory data reset. I'm not from a technical background and after saying prayers which I said only in my childhood, the below is what finally what worked for me:
1) Downgraded to KitKat 4.4.4. I have a MacBook so used this YouTube link:
https://youtu.be/pzzDxrccZO8
2) Rooted my device using King root. Link:
http://forum.xda-developers.com/android/apps-games/one-click-root-tool-android-2-x-5-0-t3107461
2) Installed Xposed framework. Link:
http://repo.xposed.info/module/de.robv.android.xposed.installer
3) Disabled the proximity sensor from Xposed framework. This YouTube link helped:
https://youtu.be/hPRujBMeuz0
Hallelujah ! I can see my screen again when making calls. Like I said, I'm from a human resources background and literally prayed like Armageddon had just started before doing all the above. I can't guarantee if these will brick your phone or put it in some perpetual bootloop mode, so do it at your own risk ! Started believing strongly in God but disbelieving in Android after this whole bloody experience.
Cheers !:good:
Hi guys I am new to the forum, I apologize from the beginning for any grammar mistake I will make.
However I opened this tread to talk about a weird issue I have had with my xperia z1 with aosp roms and cm roms, my touchscreen lacks of responsiveness, I mean ,that's something never happens to me with stock firmware, but with aosp it seems the touch frame rate is quite low , not the display but the touch infact it doesn't happen when I scroll and I move the finger up from the touch but just when I keep touching it for the whole the page for exmpl. , don't know if it happens to you too I didn't find any tread treating this
Up
I also have this issue. Doesn't matter what rom, it just happens on all aosp roms. Stock rom works flawless in touch department, but AOSP is cutting out touches, not registering them at all, sometimes for quite long. I have no idea what causes that and it seems that this issue isn't really popular, which is awkward.
Possible fix.
Tl;dr- Try removing the ASF or installing a tempered glass screen protector. Should fix it.
Okay guys, I may have a possible fix. I used to have really bad screen freezes on AOSP LP 5.0 and 5.1. I didn't have these issues on stock 242 or 270. Curious eh? Well, like I said, I USED to have these problems. I've been on PAC 5.1 for about a week now, and haven;t had a single freeze. Also note I used to have issues with ghost touches in stock 242 and 270 while typing, having serious issues occasionally.
What I did initially was just use a tempered glass screen protector. This was a few months ago, and I was on AOSP LP and didn't experience any freezes. Unfortunately, however, the protector shattered withing a week, and immediately after removing the shattered protector, I had freezes again. this was my first clue.
Fast Forward a month or two, and I still have ghost touches on stock and have stayed away from the AOSP LP scene cause of freezes. I buy a tempered glass screen protector again. and decide to test my theory out. I remove the ASF and install the glass screen protector. Flash PAC. and bam. No screen freezes until now. I think it has something to do with the touch drivers having problems registering touches in AOSP. It could be that I updated to stock LP and that fixed it, but I'm confident that alone isn't the solution. So, two tips:
1) Remove ASF and test.
2) Install Tempered glass screen protector and test.
I used a cheap protector which cost me around Rs.200 in India, which works out to be a little more than $3.00 US. So don't worry about how expensive the tempered glass screen protector is.
Do test and let me know. I wanted to start a new thread about this, but this seems like a better way to test it :3
can anyone help me with a fix for proximity sensor issue.
since applied a tempered glass the screen goes black while on call. but the issue is resolved temporarily after rebooting and appears soon.
i am on 7.1.1 april stock rom.
thanks!!!
Your cheap tempered glass is crap; get one that doesn't cover the proximity sensor
Sent from my Nexus 6 using Tapatalk
if its cheap it shouldn't work at all but its working after a reboot at a times so i dont think its a tempered glass issue!!
Same answer, get one that not cover the proximity sensor. I'm a technician and I had some problems with many models of phones, when the glass screen protector cover the light and proximity sensor. For my nexus 6 I bought intelliarmor intelliglass pro. This screen protector is great, and trust me it worth every single cent it cost. The oleophobic coating and the silicon adhesive side is better than any other glass I tried , and the sides of the glass are painted black ,to mask the halo effect due to the round shape on phone sides. The phones really looks like without any screen protector, it s the first time I found one this good . Maybe other reliable brands produce a screen protector like this one , but for sure , at least for me ,I will never buy another cheap Chinese one
Before you blame hardware issue, try Proximity Sensor calibration apps or even proximity fix zip (flash in TWRP, designed for Lollipop but works for Nougat too).
HueyT said:
Before you blame hardware issue, try Proximity Sensor calibration apps or even proximity fix zip (flash in TWRP, designed for Lollipop but works for Nougat too).
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Click to collapse
worked !!! thanks