yashsingh1/xdaforums huggingface dataset:
[Xperia Z1 Q&A, Help & Troubleshooting] :
Those bastards (at the shop) told me that they will be getting a replacement a few weeks ago because they didn't manage to fix the touchscreen issue on my Z1. So I went up yesterday and they gave the same device back with the new firmware update. And the problem is still there. So I took it back today once again and this time told them that if I see that same faulty device again, I'll demand a full refund for the phone and take my money elsewhere. I held on to the phone for 1 week in January and beside that it's been constantly at repairs from mid-December - a total of 6 weeks waiting now. What a drag!

I can also now summarise a few things:

- Some have the touchscreen issue when they touch the metal frames and some have it when they don't touch the frames.

- The new firmware update (.136) fixes or improves the situation for a portion of devices and it doesn't fix it for some others.

- An edit to the system files improves the issue for some and does nothing for others

And this brings me to the final conclusions:

1. For some, the issue is most likely software related and can be fixed or at leat improved with updates. These are the lucky ones because they have a chance of getting rid of the issue on their own device. I really really hope that people who suffer from this touchscreen issue in countries with not-so-good consumer laws have the software related problem!

2. For others, the issue is most likely hardware and based on my own experience (3 times inconclusive repairs) - the best bet is to get a replacement device. Replacing the screen brackets or replacing the screen itself doesn't seem to fix it which means the problem is somewhere in the structure or electronics. Take it back under warranty or demand a replacement/refund under consumer laws if you have that opportunity.
[Xperia Z1 Q&A, Help & Troubleshooting] chunlianghere:
i might suspect its the touch firmware version tat needs to be update. which i guess sony needs to get it from manufacturer of the touchscreen.

if u go to the service menu -> software info, the Touch Firmware Version is "d".

on my old xperia V, it does not have a version. instead "The phone doesn't support firmware version read"
[Xperia Z1 Q&A, Help & Troubleshooting] orfeas92:
They updated it from "b" to "d" with last update..
[Xperia Z1 Q&A, Help & Troubleshooting] :
As I mentioned, the software update fixed it for some and didn't fix it for others such as me. That indicates that a portion of devices indeed has a manufacturing fault and either need to be replaced or fixed somehow.

My worst case scenario is that I'll get a refund - not because of the money but after basically 2 months of waiting I doubt I'll get another Z1. But there is no match to it right now either...
[Xperia Z1 Q&A, Help & Troubleshooting] cloudaeris:
guys, try a repair with factory reset, when i previously updated to 14.2.A.1.136, i didn't check the factory reset option, and the problem was still there.

After reading tat the software updates fixes the problem for some, i tried a software repair with a factory reset, been testing for few hours and so far the problem has been gone, though still continue to monitor.

Before the update i can easily duplicate the issue.

Maybe somehow the touch screen fix needs a reset to take effect.
[Xperia Z1 Q&A, Help & Troubleshooting] vahdyx:
Nothing for the Z1S I'm assuming
[Xperia Z1 Q&A, Help & Troubleshooting] feddexx69:
so this just happened: i kept wondering how everyone said the touchscreen was suddenly ok with their phones, so i went and removed my screen protector (i had already removed the ASF after a week of owning due to nasty scratches) and same as before with .257 and .290, unusable, registering multiple touches everywhere.

so I applied a different screen film, this time a Nillkin Crystal..and voila. not been able to reproduce the problem since then. my jaw is still dropped.
[Xperia Z1 Q&A, Help & Troubleshooting] nekuratenshi:
my problem

Just wanted to add my own discovery, brand new (1week old) z1s from t mobile, was happy with the phone till day two i began to notice little issues with the screen seeming to have some kind of loss of touch sensitivity, which got progressively worse day to day. Google search out of frustration led me here, and its both comforting and disappointing to see im not the only one.

The issue is most noticeable while playing multi touch games requiring constant contact from both thumbs such as 3d shooters or top down action rpgs, ie: movement and aiming, and basically makes these types of games completely unplayable. I made a discovery while reading through this thread which i then tested and confirmed via the phones included diagnostic tools. There is one which gives you a black screen and a red line that follows your touch input, this interestingly enough allowed me to see that the "line break" occurs at a very regular interval, roughly every two inches the screen seems to lose conductivity, there is a break of about .5 inches, then the tracking resumes for approximately two inches, and tbis pattern is repeated continuously.

The surprising discovery i made was that i was able to immediately "fix" the problem by placing my thumb over the copper looking contacts for the sony charging dock along the left side of the phone. I do not know if the z1 also has this dock in a similiar location, but i think this might be why so many people here for some reason feel the need to pop on to the forum and claim that we are all just whiners because their phones dont have the issue, and also why so many of you have the problem intermittently. I think those little buttons are located where a thumb or finger naturally rests when holding the phone in landscape mode, and an index finger may contact when holding the phone upright, and it seems that as long as contact is made, a circuit is closed, or we are maybe grounding the phone somehow. This also explains how so many people are noticing the problem when its laying flat on a surface, it has nothing to do with the surface, bht rather the fact that we arent contacting those terminals (or perhaps on the z1, simply contacting the metal frame?)

Anyway, please everyone with the issue, test this out and confirm, this may also be why people using some cases experience a fix, as the case may be closing this same circuit ?

Im going to test maybe linking those two terminals together with some wire, and other different materials, since sony apparently doesnt want to fix (or even acknowledge) the problem, i guess its up to us.

(Please, if youre an idiot with nothing to contribute to this thread, and just itching to type up a "my phone iz fine so u guys are just making stuff up, and from india, hurrdurrr" feel free to instead, go somewhere else and hang out with some other jerkoffs.)
[Xperia Z1 Q&A, Help & Troubleshooting] chunlianghere:
tat 2 contact points on the left side is for magnetic charging.

i m not sure wat will happen to your phone if u gonna link up those 2 contact points for charging :eek:
[Xperia Z1 Q&A, Help & Troubleshooting] shteren:
these buttons for are charging, if you short themyou may demmage your battery....

you need a little patience, .136 FW fixed the issue for most Z1, i'm sure next fw will fix it for Z1s, or try to get a developer extract the touchscreen FW from .136 and port it for Z1s... i dunno, meanwhile try not to wreack your phone.

i had the same problem and i was really frustrated, but sony aknowledged it and fixed it....

some of the devices have a serious hardware problems which was not fixed with this update, they need to replace thier unit.
[Xperia Z1 Q&A, Help & Troubleshooting] ExoupX:
I've been having my Z1 naked (i.e without a screenprotector) for the last few days and was experiencing the same issues as you, and after installing a fresh screenprotector the problem just went away, just like that.

Weird is the most simple word to describe this with :P
[Xperia Z1 Q&A, Help & Troubleshooting] jsauce75:
I've suspected that the pins had something to do with it as well, but I haven't been able to produce conclusive results. I also have the docking station that I use at night with a speaker plugged into the headphone jack. There is a crazy amount of static and noise. I think the pins may have been poorly engineered and might interfere with the screen. Again, this just a hypothesis with little to back it up.
[Xperia Z1 Q&A, Help & Troubleshooting] chunlianghere:
i have been flashing 290 n 136 again n again.

for mine, it will get worse when on 136. but its better when on 290.

of cos i have wipe data, but doesnt make any difference.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Worst Service in Poland.

Today I receive back my Z1 from W-Support.pl Autoryzowane Centrum SONY Warszawa and this Idiots do not fine any problem with my Touch Screen. I showed to that Lady on the shop I had the problems end they do not find nothing. Do you believe it? Also I give them a new phone without a single scratch and it come back full of it and they declared on the papers there are scratches of use. This is the worst service I ever had. And is not finished yet, the phone do not boot, I keep pressing power button and 3 red lights only. I give them fully charged phone and they do not bothered to charge it and switch it off before send it back. I hope it will boot because I remember when I connect the charger a battery appear on screen, now nothing. I will kill them all. This is just the beginning.
[Xperia Z1 Q&A, Help & Troubleshooting] Threezees:
I had this problem when "Force GPU Rendering" was enabled. I disabled that and it works fine now, every time. Maybe it was just a fluke.
[Xperia Z1 Q&A, Help & Troubleshooting] chunlianghere:
i was wondering will the issue be in kernel itself? not sure [MENTION=2784807]DooMLoRD[/MENTION] can help?
[Xperia Z1 Q&A, Help & Troubleshooting] Vippo321:
Touchscreen after update

After a update to 14.2.A.1.136 I can say that I can not reproduce the touch screen issue anymore, I tried to do things I done before to reproduce the touchscreen issue but luckily I was unable to do that. So I think Sony has done something with the touch screen and it is now significantly better for me. I played GTA SA for more than half hour and no issue. How is it with your devices guys, have you experienced a same improvement as me ?
[Xperia Z1 Q&A, Help & Troubleshooting] cloudaeris:
Unfortunately, I had the same thought as it works fine for the 1st few days, but after that the problem happens just ad b4, and we have reports of the same issue on the z1 compact too, so looks like this happens across the z1 series
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
I hope not, I updated yesterday and I can't reproduce it. I remember it was fine the first time for few weeks i hope it will not be the same now.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
guys the issue is definitely still there, it's just a software mask to reduce the problem. since the .136 outed by Androxyde before the official rollout I still have the problem but very rarely happens up to now. It's really hard to reproduce it and when playing games if it persists just lift your finger fast and touch again and the problem will not happen again for a long time

for me .136 really improved my sucky phone and it's now useful and I can definitely play games on it at last
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
I already played N.O.V.A and some games and still not have the problem after update to .136. I also can put my phone on the bed and use it with one finger. It was not possible do this with .290. I hope it will stay in this way, forever.
[Xperia Z1 Q&A, Help & Troubleshooting] feddexx69:
same here, hope to see KitKat with this touchscreen firmware, I've been struggling for a long time and now it's gone.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
Well I guess we share again the common thing :) at last the problem is gone :)
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Finally. ;)
[Xperia Z1 Q&A, Help & Troubleshooting] colors:
+1 i also haven't experienced the false after the upgrade :)
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
I got huge improvement but lets say this, is not perfect. Sometime in some specific circumstance it skips rarely some touch or double fingers touch, but very unnoticeable, and if you will not think about it, you life will be just fine. :D
[Xperia Z1 Q&A, Help & Troubleshooting] feddexx69:
so what would u say, it was always a software issue resolved, or it's a hardware fault with a hell of a patch?
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Who knows? I installed today this Touch Test because playing Virtua Tennis I got the weird sensation it do not recognize double finger swipe to make a shot. After trying Print Test and Touch Test I saw it do not recognize two fingers when they are too close, and if you put your 2 fingers in the same time on the touch screen, the screen do not respond at all sometime, BUT if you touch the aluminium frame it work better, so it's just a coinsidence? :confused:

Same with this Touch Screen Test. If you put your phone on some rubber or bed and try to do the test with 2 fingers close together you will see it recognize just one or even no one at all but if you touch the frame it will work properly, try by your self and let me know if I am wrong.

Guys, i don't want speculate here because the improvement was amazing and I can enjoy my phone right now, but if we test the touch screen more deeply the problem seems still there. I just want to share my experience and NOT say that the update didn't work.
[Xperia Z1 Q&A, Help & Troubleshooting] vahdyx:
Grabbed another Z1S I'm hoping for the best
[Xperia Z1 Q&A, Help & Troubleshooting] Lexrg:
Its a HARDWARE PROBLEM bigger in some units but if u xpose ur phone to static it will have it more and more static and grounding. Im 100% sure tested 4 fuc*** xperia z1 and i have like 4 hours of videos cant be a soft prob if it modifies its behaiviour if u touch or not the metal frameeeeeeeeeee

Thas wy i sold mine and my wifes phone both c6096 from carrier telcel in Mx one purplg one white ....... Both changed for notes 3

Anyone of u deserves that a company sells u top of the line hardware with such hudge defect. No one.

im just triying to help u guys sell ur phones and get something else u deserve the best for ur money so hard to earn
[Xperia Z1 Q&A, Help & Troubleshooting] DonutCommander:
For me the issue it seems gone with the firmware.136 I'm Italian and my phone is from cypro (Greek) probably for some is a software issue?

Inviato dal mio C6903 utilizzando Tapatalk
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Ok, Ok, do not yell on us. :) I am sorry you had this experience. I had problems and they are "almost" gone with the update and for sure Sony screwed all of us from give us such a pain in the A**.

---------- Post added at 01:27 PM ---------- Previous post was at 01:25 PM ----------

For some yes, for others no.

Ajoo, so de roma pure io! :D (just kidding)
[Xperia Z1 Q&A, Help & Troubleshooting] DonutCommander:
Bello romano de Roma!! Che ce stamo a fa nel forum americano?!

XD

Inviato dal mio C6903 utilizzando Tapatalk
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
lol.
[Xperia Z1 Q&A, Help & Troubleshooting] vahdyx:
Any luck with the Z1S' yet.
[Xperia Z1 Q&A, Help & Troubleshooting] chunlianghere:
someone from talk.sonymobile.com mention tat he purposely get z1s to test out, but same problem exist on z1s. :crying:

http://talk.sonymobile.com/t5/Xperia-Z1-Z1s/xperia-z1-touchscreen-problems/m-p/564811#M16927
[Xperia Z1 Q&A, Help & Troubleshooting] feddexx69:
problem reappeared today, no software nor hardware mods, sick of this issue
[Xperia Z1 Q&A, Help & Troubleshooting] vahdyx:
Did you get the update?
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
The problem reappeared just for a minute or you still keeping it on the phone. Then Reboot. Also, for example, try to put your phone on the dock and unlock with patterns, you will see you can't. Another confirmation that the problem still there obviously masked very well.
[Xperia Z1 Q&A, Help & Troubleshooting] chunlianghere:
wat update r u referring to?
[Xperia Z1 Q&A, Help & Troubleshooting] vahdyx:
Over on the Sony forums, there's apparently a minor update for the Z1. It hasn't hit the Z1S yet, but it's fixing a lot of people with the software bug. If it continues they're saying chances are it's hardware.
[Xperia Z1 Q&A, Help & Troubleshooting] andyid:
This is very strange issue.

I've had my Z1 since November and I have yet to see this issue or try to duplicate it.

I've had it with out a cover and now had a cover since end of December and still no signs of this issue.

If it was software then I would somewhat see this issue to some little extent but I don't.

So this seems to be more of a hardware/construction issue to me.

I must of got lucky to not have this issue and I'm glad especially since I paid 200 with a 2 yr contract!

Been the best phone I've owned so far!

Wish u all good luck with the next update to hopefully fix this issue!
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
Okay so tried flashing a generic firmware on .257 and issue is still there. I really wanted to throw my z1 out of frustration!
[Xperia Z1 Q&A, Help & Troubleshooting] router0520:
Confirmed it

It may caused by insulating

---------- Post added at 10:49 PM ---------- Previous post was at 10:39 PM ----------

Please see this video

ttp://youtu.be/CeAw17LrdKE

It may caused by insulating

With the cause of new account, I can't post URL correctly. Sorry.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
Sorry cant see the video, so this is a hardware problem?
[Xperia Z1 Q&A, Help & Troubleshooting] router0520:
Probably it is.

You should see this video in any way.

This video content is how we reproduce "the skip"

If you can reproduce. You should make a complaint.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
I really wanted to see the video but youtube is blocked here at the office. How do you reproduce the skip? maybe I can try it now.
[Xperia Z1 Q&A, Help & Troubleshooting] router0520:
Sorry I can't explain well.

The best way is looking this video...

Why can't you see?
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
site is blocked here. Do i need to hold or touch something in order to reproduce the problem? or to fix the problem?
[Xperia Z1 Q&A, Help & Troubleshooting] router0520:
The video was posted from japan user. is it the problem?
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
No, that's not the case. Youtube is disabled by the IT here. so i cant access it
[Xperia Z1 Q&A, Help & Troubleshooting] router0520:
1. Turn on your display and wake app like the paintsoft.

2.Put your Z1 onto a insurated one, like rubber sheet and your Z1 must be naked.(without any cases)

3.Wait 30sec or more.

4.Drow a line, and during drowing, touch the side panel. Side panel should be touched left side and right side by two fingers. and cover of microUSB port and sim port should not be touched.

5.For 70-80%, You can reproduce the issue.

---------- Post added at 04:28 AM ---------- Previous post was at 03:55 AM ----------

So I think this problem is caused by bad insurating.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
so this is a hardware issue... tried placing my z1 on top of a rubber band and reproduced the issue quickly. Is there a remedy for this one? like placing something on the phone or a case that will prevent this from happening?
[Xperia Z1 Q&A, Help & Troubleshooting] shteren:
Yep I can confirm this on my z1 this is defenetly a hw problem, happens to me more on the left side of the screen... Seems like the metal frame is shorting the touch screen and ruining it...

Although lifting my finger off for a split second and it goes back to normal... I'm guessing a case that seperate the screen from the frame will prevent it... Other wise I can flip my phone to the right when I play games cos it happens more on the left...
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
Correct, **** happens when touching the upper left part, so when gaming you always touch that part since you're in landscape mode. So no hope for z1 :( I'm throwing this away
[Xperia Z1 Q&A, Help & Troubleshooting] router0520:
I am relieved to hear that you could reproduce.

Actually the problem is reported a lot in japan,

and the yesterday, method of reproduce was established.

I hope all user will know this problem and method of reproduce.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
Even in Japan, the home of Sony... :( by the way can this be solved by changing the type of screen guard?
[Xperia Z1 Q&A, Help & Troubleshooting] router0520:
No. it can't.

Way of solving is only one.Sony admit this problem and fix hardware or software. So you should make a claim to store and sony.please.

---------- Post added at 08:18 AM ---------- Previous post was at 08:09 AM ----------

Any cases can't privent.

Sometime you can observe the problem without touching side panel.
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
I just have to accept reality then.. Goodbye z1.. software will no longer cure this.
[Xperia Z1 Q&A, Help & Troubleshooting] shteren:
Is is that awful foe you guys? I berely notice this mybe once a day during game... Doesn't effect normal use...
[Xperia Z1 Q&A, Help & Troubleshooting] brapicoco:
really awful since it disrupts the overall gaming experience and even with daily usage.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
This is what I said at the beginning. Now the problems come out and I am really P...t-Off.

Same here. For few weeks I never saw that problem on mine so I was not worry about it but today I tested few nice games and I realized that after a minute playing the game (Minimotor or HAWX) the virtual joystick stopping working. I have to retouch the joystick with my hand or take off my hand from the phone. All the time.

This is bad, so the Flagship Device is comming to be a Crap Device, and no body will fix it.

We are here too: http://xdaforums.com/showthread.php?t=2564985
[Xperia Z1 Q&A, Help & Troubleshooting] vahdyx:
Possible Solution!!!!!

So here's what I've noticed so far.

The issue seems to not be an issue when using capacitive touch pens. At least in my findings.

There's a person that claims wiping the phone down fixes the issue temporarily. I tried this and it worked for like 3 minutes before acting up again.

So I tried the capacitive touch pens and no problem and I was able to keep problems from happening for what seemed like hours. This lead me to thinking it has something to do with moisture on the screen. Body oil pretty much.

To test this out, I oiled the pen and screen up and it started having issues for a split second then started working again consistantly. I'm guessing the rubber tip moves the oil away pretty well. Used my finger and it went hay wire, worse than before.

I then cleaned the phone and my finger worked fine for a while. Then I noticed a lot of finger prints and body oil next time I had issues. I'm guessing the phone is having issues detecting touch when there's moisture on the screen. Hints why wiping the phone only works for a little bit.

I'm gonna try to find a pair of capacitive gloves and a rubber glove to see if I still have issues.
[Xperia Z1 Q&A, Help & Troubleshooting] eclyptos:
Yes, you are lucky one.

---------- Post added at 06:47 PM ---------- Previous post was at 06:43 PM ----------

Guys! We have the Mr. Possible Solution here. Now we can sleep well. :D

BTW, drop a bit of water on screen and mine touch will recognize that as I will push the screen with the fingers so if it will be so easy we will not be here complain again about this issue
[Xperia Z1 Q&A, Help & Troubleshooting] vahdyx:
Haha well solution was the wrong word. I should have said work around and even that appears to be flimsy.
[Xperia Z1 Q&A, Help & Troubleshooting] chunlianghere:
got link?
[Xperia Z1 Q&A, Help & Troubleshooting] tudy88:
same problem here, it happens total random. On the table, on hand , with case , without case. It is a software problem or a hardware? very upset with this. My best way to replicate this with 100% accuracy is this https://www.youtube.com/watch?v=P7acNDd_eHw