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
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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
Related
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...
Click to expand...
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!
So I removed my shatterproofing and am not having any issues at all with sensitivity. The only reason I am asking this question is because my friend who did is. The difference? I am running CyanogenMod and he is running stock.
So to try and get an understanding of whether or not this issue is present on both kernels I am asking all of you who have removed the shatterproofing to tell me if you're experiencing any sort of sensitivity issues after the fact, and also which ROM/kernel you have been running.
Since I just removed my shatterproofing yesterday I will wait and give my feedback when I have had more time to assess the current state.
After I removed the ASF, I noticed problems on touchscreen. It´s not very common and happen randomly (screen stops responding to touch and sometimes shakes). I am using stock .136
Another problem I noticed after removing the ASF: The glass has no oleophobic and hydrophobic treatment (it´s pure glass, like a window´s glass). The fingers do not slide well and the screen always looks dirty and wet!
Due to these problems, I've ordered a Nillkin H + tempered glass protector (front and back).
marciozh said:
After I removed the ASF, I noticed problems on touchscreen. It´s not very common and happen randomly (screen stops responding to touch and sometimes shakes). I am using stock .136
Another problem I noticed after removing the ASF: The glass has no oleophobic and hydrophobic treatment (it´s pure glass, like a window´s glass). The fingers do not slide well and the screen always looks dirty and wet!
Due to these problems, I've ordered a Nillkin H + tempered glass protector (front and back).
Click to expand...
Click to collapse
I am thinking of applying some treatment to mine instead, since I love the look of the device now.
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.
Click to expand...
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.
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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:
Hey guys,
A few days ago, I removed the ASF screenprotector from my Xperia Z1 And all went well, the phone feels nice now! BUT the touchscreen is all messed up now...
One press on home button = multiple presses on actual OS. Today I was listening to music and it didn't work at all! Wouldn't repsond to touch anymore, I had to wipe it off to get it to work again. Sometimes it behaves normally but this is too annoying to live with each and every day! I thought to myself: hey you dumb*** it's probably the glue residue from the ASF. So I washed my phone a billion times (even with soap once) and it doesn't fix it. IDK if the residue is still there or if my touchscreen is just messed up.
Any help is appreciated!
Thank you,
noahvt
noahvt said:
Hey guys,
A few days ago, I removed the ASF screenprotector from my Xperia Z1 And all went well, the phone feels nice now! BUT the touchscreen is all messed up now...
One press on home button = multiple presses on actual OS. Today I was listening to music and it didn't work at all! Wouldn't repsond to touch anymore, I had to wipe it off to get it to work again. Sometimes it behaves normally but this is too annoying to live with each and every day! I thought to myself: hey you dumb*** it's probably the glue residue from the ASF. So I washed my phone a billion times (even with soap once) and it doesn't fix it. IDK if the residue is still there or if my touchscreen is just messed up.
Any help is appreciated!
Thank you,
noahvt
Click to expand...
Click to collapse
All you need is a oleophobic screen protector to prevent these ghost touchs. Same happened here.
Just got my nillkin h+ 9H screen protector, and I must say: even though I hate screenprotectors this has to be one of the best I have ever used! (0 bubbles ) I was however not so impressed by the back protector which feels like plastic and was not as easy to apply (lots of bubbles). The screen protector on the front feels nice and got rid of the "ghost touch" problem I had. I absolutely recommend this screen protector! One more thing: you'll want to watch a video on how to apply it since the English guide on the package is absolute garbage (I couldn't understand it)
So my question is quite straight-foward.
When you bought your Xperia SP?
Did you use screen protector all of this time?
Did we really need screen protector or not? Please share your experience, with or without it.
I bought mine on June 2013, and since that, my screen almost never had contact with fresh air. Always protected using 3rd party screen protector. I'm too afraid to peel off mine. My screen protector had a few quite scratch. So now I have two option, buy new one, or live without it. Need opinions.
Thanks alot guys.
K-Ge said:
So my question is quite straight-foward.
When you bought your Xperia SP?
Did you use screen protector all of this time?
Did we really need screen protector or not? Please share your experience, with or without it.
I bought mine on June 2013, and since that, my screen almost never had contact with fresh air. Always protected using 3rd party screen protector. I'm too afraid to peel off mine. My screen protector had a few quite scratch. So now I have two option, buy new one, or live without it. Need opinions.
Thanks alot guys.
Click to expand...
Click to collapse
One year ago my father almost threw my SP into a brook. Fortunately it didn't land in the water but on the gravel that constituted the bank of the brook. The phone now has got some scratches on the left side of the aluminium frame and on the screen there's only this small and superficial scratch (look in the phone's corner in the attached photo). Even if the impact wasn't a very strong one, I'd still say that the screen protector isn't needed unless you often hit your phone with violence
K-Ge said:
So my question is quite straight-foward.
When you bought your Xperia SP?
Did we really need screen protector or not? Please share your experience, with or without it.
I bought mine on June 2013, and since that, my screen almost never had contact with fresh air. Always protected using 3rd party screen protector. I'm too afraid to peel off mine. My screen protector had a few quite scratch. So now I have two option, buy new one, or live without it. Need opinions.
Thanks alot guys.
Click to expand...
Click to collapse
I bought mine in December 2013, and similar like you, the screen is fully protected the second it was bought from the Sony centre.
It has also been replaced a multiple of times. I used the plastic one, which is also the first one, for quite a long while. for about a year if i could pinpoint correctly. It worked fine back then, no peels at the edges and such, just that i discovered we can find glass screen protector on ebay and decided to use glass one ever since.
Coincidentally; i am currently waiting for a new one to arrive
------
So stories aside, i think you would be better off with a screen protector. A slight scratch on my screen would bother me so much — not that i am obsessed with having a scratch free screen to show off to people, it's just that a single scratch could distort the content on the screen (ie that RGB stripes that you can see) and that bothers me so much. If it is on a screen protector i can accept that because I know if i replace a new one the thing will go away but if it is really on the real phone screen then that's another story of indefinite frustration.
So yeah, TL;DR: Get a screen protector
But yeah; personal opinion should not dictate other's choices.
K-Ge said:
So my question is quite straight-foward.
When you bought your Xperia SP?
Did you use screen protector all of this time?
Did we really need screen protector or not? Please share your experience, with or without it.
I bought mine on June 2013, and since that, my screen almost never had contact with fresh air. Always protected using 3rd party screen protector. I'm too afraid to peel off mine. My screen protector had a few quite scratch. So now I have two option, buy new one, or live without it. Need opinions.
Thanks alot guys.
Click to expand...
Click to collapse
Yeah, considering the SP has a flat screen, a tempered glass would provide great protection from accidental drops while giving you that "naked" display feeling compared to film protectors.
It's almost my third year with my xsp. I haven't used any screen protectors except the first few months, but there's not even a single scratch or anything looks and feels bad on my screen. I dropped it a lot, even from the second floor but screen is still fine.
But use one anyways.
XSP Screen
XSP has scratch less glass. Unless you hit it with nail, it won't get any scratch. I suggest you to not to cover it. It looks beautiful without cover.
I bought mine more than three years ago, on July 2013. On first month, without a screen-film, it started to get minor and almost invisible little scratches, probably from walking long distances with it shaking on my pocket. So I decided to put a screen-film and have been using it since then. Never changed the film, I will soon.
About covers or frame-bumpers, I would recommend one. My SP got a crack on the lower blinker glass after a drop in the garage. After the rubber cover I dropped it a lot of times and the glass is still ok.
I have had mine for just over 3 years now. It came with a screen protector in the box. I messed up trying to install it and as dust was stuck between it and the screen, I removed the protector within less than an hour.
3 years later, the plastic surrounding the screen is in quite a poor state but the screen itself is immaculate.