yashsingh1/xdaforums huggingface dataset:
[Xperia Z1 Q&A, Help & Troubleshooting] Miche1asso:
I have the same issue with an Xperia M2. But the other way around. If I swipe slowly it works, swiping fast it jumps. But like in your case I get the issue, usually in the center area, only swiping vertically.

I checked it entering the service program, dialing

*#*#service#*#*

The thing is that I am quite sure in the touch screen test it was working fine a couple of days ago when I checked (but the keyboard swiping was interrupting, breaking up the words and that's why I checked).

PS: While charging the problem, although still there, seems to get greatly reduced. What the heck did Sony do..
[Xperia Z1 Q&A, Help & Troubleshooting] alesfrede:
Hi. I update to lollipop and error continue. :(

alesfrede
[Xperia Z1 Q&A, Help & Troubleshooting] RAFALAMAO:
yeap, ****ing z1 :crying:

anyone tried this? :confused:

http://xdaforums.com/showthread.php?t=2522657
[Xperia Z1 Q&A, Help & Troubleshooting] ferdhi septian:
Same problem here, please anyone help:(
[Xperia Z1 Q&A, Help & Troubleshooting] jonke11:
I had same promblem when i removed original sony protective film... But i bought tempered glass screen prootector and everything is fixed. Guys, try to clean clearly the phone screen. Is problem still there? If not, just buy new screen protector.

When i pealed off original film i found that ghost touches my screen when its not clear (a lot of finger prints). I think the screen is to sencitive, so try to fix it like me.

Really sorry for english, if you dont understand me, just try to mention me in comments, i will try my best to explain you more.
[Xperia Z1 Q&A, Help & Troubleshooting] Techpenguin5:
For everyone who hasn't already tried download pimp my z1 from the play store and make sure both glove mode and pen mode are disabled. if that still doesn't work clean your screen/screenguard with some rubbing alcohol.
[Xperia Z1 Q&A, Help & Troubleshooting] zombunny:
Have the z1s with the erratic touchscreen, been trying to fix this thing almost since the day I got it (5 months after its initial release). Got it on eBay, no returns. I'm to the point where I've tried so much, I'm ready to take mine apart and look at the grounding. Fed up with case-swapping, screen cleaning, calibrating, flashing, rebooting, etc etc etc, nothing has worked for me. This baby was my first phone I rooted (in an attempt to fix it), and now it will be the first I'll take apart.
[Xperia Z1 Q&A, Help & Troubleshooting] Geoffxx:
you very likely have a hardware fault, either your touchscreen assembly or the motherboard, I have dismantled numerous Z1's and repaired them, my own is fitted with a glass screen protector and I have never experienced a problem like this with any of them
[Xperia Z1 Q&A, Help & Troubleshooting] user822:
My touchscreen went into fullblown crazytown mode over night, just sitting on my desk

Next night the display broke too, and was all black, except for the backlight that still worked.

Byebye Z1. Probably still going to get a Z6 at some point, these things can happen after 3 years
[Xperia Z1 Q&A, Help & Troubleshooting] orangzeb:
Installing a tempered glass protector solved it for me :)
[Xperia Z1 Q&A, Help & Troubleshooting] masterinc:
hello everyone,

Apparently, my friend phone screen is not responding to touch anymore.

Specifically at the "Home, Back and Recent" button area.

Other area seem find and have no problem responding to touch.

Anyone why? is it hardware or software problem?

Thanks
[Xperia Z1 Q&A, Help & Troubleshooting] mditin:
I have problem with jumpy touchscreen, but when i lock my phone and unlock it everything seem ok.

Jupms doesnt accur only as wrong position of press, but also as pulls or calling contacta while in pocket
[Xperia Z1 Q&A, Help & Troubleshooting] XyudhoX:
Hello. First, please apologize if my English isn't good enough. Im Indonesian, Asia, therefore, English isn't my mother tongue. But, I'll try my best.

I've just got Xperia Z1 in 14.6.A.1.236 unroot FW. I've changed the anti-shatter screenguard with tempered glass.

My problem is, there's an area in my display which is cannot be touched. But sometimes, it can be touched.

Maybe pictures would told better:

First image, cannot touched

Second image, can be touched sometimes

I've tried to turned off X-Reality option and calibrated with this app. Unfortunately, there's no luck until now.

Anyone can help me? What happened to my lovely phone: hardware or software problem?

Is there anyone here that has benn solved this problem?

Many thanks before...
[Xperia Z1 Q&A, Help & Troubleshooting] Soumyadip999:
confirmed fix for xperia z1

Well guys I know its a bit late,but none the less,I think its sort of a obligation to share it in this great forum :) .I think I have a confirmed fix for the phantom touch touch issues on Xperia Z series smartphones (tested it on my Z1 and a friends Z1C).What I did,I obviously rooted my phone,and particularly I installed DZ1 Striker ROM ( many thanks to the developer for this awesome debloated ROM for locked devices)based on the latest official update by Sony in my Z1 (locked booloader ),installed XZ dual recovery (another wonderful creation),uninstalled stock Sony HOME launcher and stock themes using Titanium Backup and made Nova as the default launcher,then installed NITRO X SPARK V.3.0 VISION by [MENTION=5672914]k1ks[/MENTION] and voila,no phantom touch issues at all for last 6 days........I am now multitasking as a devil,but the phone is snappy at cpu 85 degrees celcius,and I am intentionally not wiping out the oil and dirt on the screen,still no problem at all,Thanks to XDA and all the great developers for all the wonderful tools,I cannot thank you enough:good: :highfive::highfive::highfive:
[Xperia Z1 Q&A, Help & Troubleshooting] optimumpro:
If your phone overheats to 85 degrees and it is snappy, that means that the modder has disabled overheat protection. And if he did that, that means he doesn't know what he is doing. At this temperature, plastic parts would start melting, not to mention the CPU and battery. You can soon say good bye to your phone.

As far as ghost touches, they will come back, if your phone would last. The issue is in kernel and since you have a locked bootloader, no one can modify your kernel. So, it is a placebo and also may be related to high temperature...
[Xperia Z1 Q&A, Help & Troubleshooting] Gamer4Life:
Ghost touch are hardware problem, some units are affected, others are not :)

I ve been through many z1 phones, 2 had this problem. And both had the factory antishatter with sony logo removed
[Xperia Z1 Q&A, Help & Troubleshooting] optimumpro:
Sony antishatter is a piece of garbage plastic that dulls screen clarity and colors. In addition, it is easily scratched. There are 2 reasons: some earlier screens had no oliophobic protection; and lack of support in kernel. I have glass screen protector with oliophobic layer and a fix in kernel. And my screen no longer have ghost touches...
[Xperia Z1 Q&A, Help & Troubleshooting] itemmaster:
in my case was a hardware problem the case bend a little and leave a thin gap between the screen and case and when the issue happens with a little push in the lower part of the screen works again for a while ( or turn screen off also "solves" that).

in resume a hardware fail
[Xperia Z1 Q&A, Help & Troubleshooting] amm009uk:
Its a nothing problem if you don't have a reason to move your finger from point to point. But I'm using the Swype keyboard and it really sucks fur about half the time other half it works just fine. This is with or without case but it's less since I added a cheapo screen protector.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Do not matter? the device is faulty anyway.

I don't know, I got screen protector from day 1 and I have problem.
[Xperia Z1 Q&A, Help & Troubleshooting] amm009uk:
No what I meant was it matters a lot to the point I'll get a new phone if its not fixed with next update.

---------- Post added at 06:51 PM ---------- Previous post was at 06:49 PM ----------

By the way a workaround is to use your thumb which doesn't really help in all cases
[Xperia Z1 Q&A, Help & Troubleshooting] Barso1:
I have a Z1 in the box just arrived from amazon as I was undecided between the Z1 and GalaxyS4 but reading these touchscreen issues has made my decision for me.

The Z1 will be on its way back to amazon tomorrow. Such a beautiful device too and such a shame. Stop cutting corners sony!!!!
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
I did a video by myself and I don't get it! Where is the problem? I mean where is the problem causing the touch screen failing to work. The only 1 thing what I am sure is if I leave the phone for 20, 30 seconds the issue show up with or without touch the aluminum frame.

Link: https://www.youtube.com/watch?v=nNV_jat9Z5Y
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
I'm gonna move to an i device if this is not fixed. since this issue affects daily usage.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
I thinking the same but I really hope not do that.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
Me neither and we still got this one last hope, the 4.3 update.. I really love my z1 and dont want to give up on it but if this issue will not be fixed then it's over.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Hopes are updates 4.3 or 4.4 (better) and at last XDA. I will kill my device here. ;)
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
Well there aren't many devs here for the z1 as far as I know. I hope a great dev will stumble here upon our problem and develop something to fix this.. :)
[Xperia Z1 Q&A, Help & Troubleshooting] Ame123:
is the touch problem fixed in the new 4.3 update?
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Keep downloading, I post a soon I can. ;)
[Xperia Z1 Q&A, Help & Troubleshooting] koopa101:
Just tested, problem is still here.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Hey guys, I installed Android 4.3 right now, is smooth, wow. I testing. Let me do few thing and I let you know.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Hey guys, you probably already know about the touch screen, right?
[Xperia Z1 Q&A, Help & Troubleshooting] 301stSpartan:
Just want to say I've had the same problem. Used to be VERY rare and would just notice it while using swype, but would only affect me once or twice a day at most. Then starting about a week ago, it started happening a LOT. Now I can barely use the device. I can't even scroll down my app drawer without it losing my touch, thinking it's just being pressed, and opening random apps. Completely unacceptable.

The worst thing is that it started getting really bad right after I flew back to the US for holidays (I bought it in India) so I can't even take it into the store to complain until I get back to India in January. :mad:
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
I am in your same situation but mine still working somehow but the best part you want to know, it's even worse after the update. I will try to find a solution because I do not give up on this phone. Somewhere it can be improved for sure. High End device have to possibility to adjust the sensitivity of the touch screen but at the moment this android can't help a lot. So still testing. It's first day with the update and I don't want be pessimistic.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
Ok so problem is still there.. time to throw my z1 away. only yellow hue is addressed and we have a hardware problem
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
I even do not make a vid because is the same. This touch screen can be tweeked and the sensitivity can be modified for sure but with a Stock Android this is impossible. So I still testing. The steps to change the sensitivity are in Custom Kernels and in Rooted Roms. So guys if you really want improvements for your touch screen your have to be prepare for a big job.

BTW, I will consider to update anyway. Some improvements are made, maybe you will change you mind and do not throw away your phone. :)
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
Still very optimistic, we're left here with a ****ty hardware issue.. I wish i had the yellow hue problem since it got fixed in the update.
[Xperia Z1 Q&A, Help & Troubleshooting] jlevy73:
Nope, the yellow hue issue wasn't addressed in the update, at least not in my case. Grays still look like crap.

However, I don't have the touchscreen problem, problem is I didn't test it before the update.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
For real? Well too bad for us then.. :(

Problem is not addressed.. maybe its a hardware and this update confirmed it..
[Xperia Z1 Q&A, Help & Troubleshooting] hoezay:
I've given mine in to the service center and I showed them what happens as well with this video I shot before handing it in to them.

http://youtu.be/44F_w8tCHHQ

Let's see what happens.( This is the 2nd time in 3 months that I've had to send my z1 into the service center, and this whole exercise has already defeated the idea of spending money on a premium product.I've been spending more time at the service center.Looks like some serious qc issues.The first time I got a replacement because of the yellow display issue )

I was in love with the Z1.But, I've already given up hope, and have moved onto another phone now.

[I met 3 cell phone dealers at the service center today, all of whom told me that they deter their customers from buying Sony because of constant problems.3 cell phone dealers ! wtf ! ]
[Xperia Z1 Q&A, Help & Troubleshooting] 301stSpartan:
So I was thinking a bit about this issue and I feel it has to be hardware related. Like the screen shorting out. And it seemed odd that it would take so long to develop. Then I looked and noticed some gunk in the small crease between the screen and body. I did what I could to clean that out and the problem seems to have gotten better. I'm traveling now so don't have what I need to fully clean it out but I expect that could reduce the problem greatly.

Anyone who has the issue and has access to clean it well, can you try and post here if it made a difference? I could easily see crap getting stuck in there over time and causing a short between the screen and body eventually.
[Xperia Z1 Q&A, Help & Troubleshooting] vv91xv:
4.3 fixed screen problem?
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
I was thinking is hardware related too but I heard people saying to washing they hands before use the phone, and that should have better influence on touch screen. So not really convinced.

So my opinion is software related, its seems like the touch screen is set up to get a refresh too soon and to quickly. The sensitivity of a high end touch screen can be modified and many tweeks can be done, but this you can forget on stock roms. So still testing because I thing there is a solution for everything.

Not really. On stock update or roms this will be close to impossible.
[Xperia Z1 Q&A, Help & Troubleshooting] 301stSpartan:
I doubt it is software. I've had this issue in small amounts on various ROMs. But more so, there is nothing that changed on my phone in terms software for weeks, but all the sudden it just went from a minor problem to really bad over a course of like a day. To me that says hardware. I think the gunk has something to do with it, because after a minor cleaning it is very noticeably better.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Do you see, it can be better, that mean it's too sensitive. That can be fixed. Even if is hardware, it can be managed.
[Xperia Z1 Q&A, Help & Troubleshooting] 301stSpartan:
On my end, the issue is without a doubt accidental short circuit between the screen and case due to contaminants. Once I got to the airport I sat and cleaned it more carefully and it's almost back to normal. And before, it was VERY bad. Now I've typed this whole message with Swype and only lost touch continuity about 6 times. Before I couldn't type a single word more than 2 or 3 letters.
[Xperia Z1 Q&A, Help & Troubleshooting] hoezay:
lol only 6 times ? you didn't pay good money for a workaround bro.Send it in for a replacement.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
Changing the screen guard to a thinner one fixed the problem also, about 80% I can now play games and once the problem comes I just lift my finger for a second and now its working again.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Same here, so you have 2 screen protector now, 1 from factory and 1 transparent?
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
Yup, the ASF and the one that I have applied.

---------- Post added at 07:37 AM ---------- Previous post was at 07:34 AM ----------

can you post a picture of the gunk that you were referring to, I can't see anything on mine.
[Xperia Z1 Q&A, Help & Troubleshooting] 301stSpartan:
Yeah... well if you read this thread you'll see that I started having problems right after I traveled back to the US for several weeks. You have to be in India to find an Indian service center that will even touch an Indian model. Certainly the service center is my first stop once I'm back in Bangalore next year.

---------- Post added at 04:04 AM ---------- Previous post was at 04:00 AM ----------

Sorry, but I'm travelling and don't have a camera to take a picture of the phone. Also, I already pretty much cleared out anything visible. Just look along the edges of the screen and see if there is anything in there. I used a piece of very thin plastic and cardboard to clear out what I could.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
I don't see anything since I always submerge my phone so no dust particles will stick onto it
[Xperia Z1 Q&A, Help & Troubleshooting] 301stSpartan:
Don't think submerging the phone will help much. I washed mine but didn't help until I got something to scrape there. Is a very small crease and oils and things could get in there. In my case cleaning even beyond what I could see helped, but still have some issues and will look for a replacement once I'm in India again.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
I really can't imagine that. How a kind of gunk can interference with the touch screen in is not conductive. Do you use a metal cream for you hands? (just kidding) . Anyway I got nothing and the screen is better after clean too but to me have nothing to do with that.
[Xperia Z1 Q&A, Help & Troubleshooting] 301stSpartan:
Ummm... sweat is conductive.... what gets your phone more than sweat? Or perhaps the screen gets messed up because an insulator interferes with conductivity. I'm just saying that my device got significantly better when I cleaned the gap between the screen and phone. But I still have some issues, so I'm not saying it fixes everything.

Doubt what you want. Refute based on nothing. But I got measurable improvements from this so just hoping someone else could benefit as well.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Actually I got an Idea, for real, it's a industrial fluid glue when with the contact with oxygen, air, become hard like rubber. Its used to seal high end flat ceramic glass for Electric and Induction Ovens. Is very fluid at the beginning so easily can be clean with alcohol and the unnecessary take off. You fill up that gap and I telling you, will be like new and you are without the problem.
[Xperia Z1 Q&A, Help & Troubleshooting] 301stSpartan:
Yeah, I was thinking something similar. Not a bad idea. But since it's still under warranty I'd rather just make Sony give me the device I paid for rather than do something that could void the warranty.

Just can't take it to service center until next year, so until then I'm just doing whatever I can to clean it and minimize the annoyance...
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Until next year that mean few weeks? :) BTW, I don't think you will avoid warranty doing that. It most like factory work but better if Sony give you a new device, if the problem still there again, I hope not for you, you should do this.
[Xperia Z1 Q&A, Help & Troubleshooting] Lexrg:
i have a c6096

i use it a lot, no problems at all in daily use

only when i do diagnostic. have to test it like 20 times to reproduce it

an important is that the touchscreen issue was present with a flip case on it

and i think, in mi case it has something to do with the proximity sensor.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
Mine's covered with a whole screen guard and no holes for proximity sensor and camera, what makes you think that this can be related to proximity sensor?

[MENTION=1030880]eclyptos[/MENTION], how is your phone? any progress with workaround for the issue?
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Not yet, but I don't know why but I still thinking is a software issue somewhere because after the update it's worse than before. I can live with that but sometime when I scroll the pages the touch screen do not respond like it should, I had less of this before.
[Xperia Z1 Q&A, Help & Troubleshooting] Lexrg:
Re: xperia z1 touchscreen problems

Options

12m ago

I recorded for like 30 minutes of test had the issue only twice and both of them were when my finger touched the upper black bezzel of the screen
[Xperia Z1 Q&A, Help & Troubleshooting] amm009uk:
Seems like a little different for each of us.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
I can touch everything aroud my phone and still the same, sometime issue is there sometime not. You saing this like it will be a hardware problem so tell me how I ruined my hardware just with the update? Do I burned the touch screen chip?

---------- Post added at 03:52 PM ---------- Previous post was at 03:51 PM ----------

Exactly, the problem is we can't figure out where is the real problem.
[Xperia Z1 Q&A, Help & Troubleshooting] Lexrg:
I dont care if is hardware or software or static or whatever im only triying to help you and im very curious about it too even that this issue doesnt affect my daily use at all.

i used my nex5 to record my test for 30 min then i saw the video on my pc and the only thing in common whas that both times my finger was near the upper part of the screen and my other fingers were over the proximity sensor, never touched aluminium phone was on a flip case.
[Xperia Z1 Q&A, Help & Troubleshooting] amm009uk:
Somebody said the factory anti shatter proof could be causing it although without it the screen goes crazy. A few ppl have already replaced this I wonder wonder if they are better off. That in itself tells you its related.

As I've given up on this phone due to touch problem its going to my wife who doesn't use Swype. I'm tempted to get another if only we had a way reliable way to check for problem. Sony must know just not acknowledging.
[Xperia Z1 Q&A, Help & Troubleshooting] feddexx69:
my touchscreen issues worsened after updating to 4.3, and I can confirm that my z1 without the ASF is absolutely useless, the problem increases 300%, only way to make it work is with a screen protector on top of the naked screen..I usually reproduce the problem by "swyping" inside the back soft key with haptic feedback on.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
To me look like they tweeked the touch screen to be more sensitive.
[Xperia Z1 Q&A, Help & Troubleshooting] amm009uk:
When Swype is playing up I switch to using my thumb and all is well. Basically a large footprint makes it work.
[Xperia Z1 Q&A, Help & Troubleshooting] 301stSpartan:
Mine is the opposite. Smaller contact areas seem to work best
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Hey Guys, this actually let me think. Do you think is because they are set up to recognize the quantity of the pression of the finger and when is to large the touch screen go crazy and when is to small the same? Or I go crazy just right now?
[Xperia Z1 Q&A, Help & Troubleshooting] 301stSpartan:
No, don't think so. Messes up pretty much no matter what, but works slightly better depending.

The biggest thing though is that my device was 99% fine for over the first two months of use. Then in a matter of two days became almost unusable (with no software changes during that time). Has to be hardware issue driving it.