Touchscreen (rare) problem - Xperia Z1 Compact Q&A, Help & Troubleshooting

Hi guys. I wanna ask you one thing.
Even though this is a wonderful device (imho only z3c is better, the others aren't up to this one) I noticed a bothering problem and that is sometimes, when I use my smartphone for a long-time-session, the touchscreen starts turning crazy, making fake inputs, even if I don't touch it. Problem solves just locking and then unlocking the device.
I realize that it's not a big problem, ok, but when it becomes frequent and unceasing, well, it's very annoying.
Now, I wanna ask you: is it just a problem releated to my phone or it's some bug software-releated?
I'm still on 4.4.4 (I don't wanna change... it's sooo smooth :angel and I'm rooted with bootloader locked (but I'm sure it's not a problem linked to this last condition in that it happened also when I was on stock entirely).
I hope you can give me some explanation. :fingers-crossed:
Thank you in advance

I just realized that it's the wrong section where post this kind of thread. Since I guess I cannot delete my post, moderators may you move it to "Troubleshooting" section please?
I'm so sorry for the mistake but I'm new on XDA.
Thank you very much

have you got a flap pocket ? ( with felt fabrics) on my Z1C, the problem is caused by the housse protector (muvit mark) ... whether yes, change should solve your problem hull

I have also been experiencing such weird behaviour. The problem was frequent on 4.4.4 but on 5.1 I haven't noticed that problem yet. Anyway I guess it may be gone because I've changed the screen protector.

i have the same problem when the phone becomes a little hot

Related

Start Menu Pop Up

The Start menu pops up as and when it feels like it. It normally happens when writing sms. While writing, the start menu just pops up and it's bloody irritating.
I've tried hard reseting without any additional softwares on at least 4 different ROMs from here & the problem still persists. I'm convinced that it's not a hardware problem cos Karmba 7.2 Non-Touch ROM does not have this problem but the ROM is way to heavy which causes the PDA to slow down.
Is anybodyelse facing this problem? Is there a fix or something to this? Appreciate any help & advice i can get. Thank you.
P/s: I don't get this problem on my TyTN II, Dopod 838 Pro & Touch on custom ROMs
not really ment for the trinity forum is it ?
Rudegar said:
not really ment for the trinity forum is it ?
Click to expand...
Click to collapse
Oh sorry....forgot to mention. I'm using the Dopod810.
popup
Well, there has been a number of posts on this known Trinity weakness.
I also experienced quite an irritating behavior as well some time ago.
Look through the threads, you should find them. Personally, I do have the impression that since I use FTouchFlo, it is far better. However, this only is an impression ... not sure it helps,, but at least you should not feel like "I am the only one with this damned f..... thing" !
same problem
I have the same problem on my phone! specially when writing sms with phonepad and no stylus. You are right. It`s unbelivable annoying. the problem seems to dissapear when you are using the stylus and not flabby fingers..
Me 2 :'(
I am also having this problem.
I've noticed that it only happens when i press lightly on the screen, not when i press hard.I Suspect that it is a fault in the digitizer, and somehow it signals to the device that the upper left corner of the screen is pressed.
My suggestion for a possible solve is to write a little program that prevents the user from clicking on the start menu on the screen, by introducing a "non-click" zone where the start menu is on the today screen.
As i allways use the "windows" button i can always access the start menu. This, i think, will prevent this fault from happening.
My only problem is that i don't know how to program native C.
I have not tested my above mentioned theory, but i would wery much like to. So if there is anyone out there that can do this program, i would be very gratefull.
Scann69,
I would hate to make you nervous, but when I encountered the same problem you are havin it was the start of somethign terrible. My Trinity was back and forth from repair for over 6 months!!!
They replaced the screen, it worked for almost 2 days. They replaced the screen AGAIN but when it came back the 'vibrate' function of my poor Trinity didn't work. They then replaced the mainboard and now things appear to have settled down (but i've only had it back for a couple of weeks now).
My suggestion would be send it in for repair. Good Luck
WC
WangChung said:
Scann69,
I would hate to make you nervous, but when I encountered the same problem you are havin it was the start of somethign terrible. My Trinity was back and forth from repair for over 6 months!!!
They replaced the screen, it worked for almost 2 days. They replaced the screen AGAIN but when it came back the 'vibrate' function of my poor Trinity didn't work. They then replaced the mainboard and now things appear to have settled down (but i've only had it back for a couple of weeks now).
My suggestion would be send it in for repair. Good Luck
WC
Click to expand...
Click to collapse
this problem have been there since i bought the phone a year ago. Htc replaced my mainboard around 5 months ago because of some cameraproblems. I think Beebo has a good point about the digitizer. that would surtenly explain why it dont happen to me when i use the stylus. the problem mostly occur when i use my fingers on phonepad while writing sms..
i also got this problem...quite frequent
first, the changed motherboard, nothing solve and still happen quite frequent
second, changed lcd screen, happen less around once a day or 2 days once
i found this problem quite easily by using finger but now even using stylus it also appear....
how u guys solve this problem? got send to service center or just leave it?
Yep this isn't a WM6 issue
Yep it is a Trinity issue
Yep it is a hardware issue, something to do with the LCD screen. Some have said it gets worst if the phone is heated.
You might have seen improvement after installing touchflo because of the increased reaction time to touch.
No I don't know a solution
BeeBo said:
I am also having this problem.
I've noticed that it only happens when i press lightly on the screen, not when i press hard.I Suspect that it is a fault in the digitizer, and somehow it signals to the device that the upper left corner of the screen is pressed.
My suggestion for a possible solve is to write a little program that prevents the user from clicking on the start menu on the screen, by introducing a "non-click" zone where the start menu is on the today screen.
As i allways use the "windows" button i can always access the start menu. This, i think, will prevent this fault from happening.
My only problem is that i don't know how to program native C.
I have not tested my above mentioned theory, but i would wery much like to. So if there is anyone out there that can do this program, i would be very gratefull.
Click to expand...
Click to collapse
but this not the way to solve it. this is the trinity's hardware problem. why need us to bear this problem.
what the technician do is change lcd touch screen. it will not solve becoz after a while it will come back. i go to service center until i tired
after monitoring, it still popup at least once a day....
i really don't know how they solve the problem....damn frustrating....
i have this problem too, but only recently.
who gonna be help?
first prob is the start button popping up, next step is that it continually does this and infact will not allow any screen inputs....as in total piece of #$%(ing crap. I have a dopoid d810 in canada , started 2 months into owning the phone , htc will not service it, and pretend like they dont know why this is happening ( there is info all over the net about it, many people think it is the chip that is improperly mounted to the mouther board that controls screen input). AS Dopod has the service contract on this phone htc will not service it for me and of course dopod does not have international warranty. HTC screwed me hard and long.....I have never been so disappointed with a product in my whole life ( even cereal box xray glasses were better than this)
i had this too on my m700, i think it is an issue with the screen mounting, certainly heat and things may well affect it. Possible the casing pushing the top corner of the screen or something.
I had mine replaced by orange.
rjefferis,
what did orange replace for you? touch screen or whole unit pda?
chunga168 said:
Yep this isn't a WM6 issue
Yep it is a Trinity issue
Yep it is a hardware issue, something to do with the LCD screen. Some have said it gets worst if the phone is heated.
You might have seen improvement after installing touchflo because of the increased reaction time to touch.
No I don't know a solution
Click to expand...
Click to collapse
Yes, all you said are right.
the trinity, there are two problem:
one is the LCD mounting, if you touch the LCD slightly, it will push the screen to the corner as click start menu. for the people who met the problem once in few days, it is all right.
the second problem is serious, as you said "worse when heated", that is because a resistant near CPU is designed in wrong place. the problem will happen freqently everyday and worse when phone is hot (cuz the NTR resistant). once it happens, it will get worse and worse till the motherboard breakdown.
i know some people they replace the resistant to fix the motherboard by them self, and they write down all the progress. if some one really handy and insist to fix the problem, i am happy to translate the progress in to WWE
that day i asked staff at service center, they said never occur this problem so far
i asked htc staff(my friend), he said don't know got this problem. seem like htc don't know this problem....

Problem with Screen

Hello All,
I have a question about the screen, I noticed yesterday that I like oil in the center of the screen (inside). I never noticed before if I had already or not, because we noticed that in a certain light.
Of course I do not detect any malfunction at the screen, just the effect of oil and a little embarrassing to say the least strange. Someone would he have the same problem or is this quite normal?
Finally I take my post to thank all members of the forum to find all the information over the posts
Ben.
are you sure its not a Neuton Ring?
http://www.fas.harvard.edu/~scdiroff/lds/LightOptics/NewtonsRings/NewtonsRings.html
yes it is very similar to this kind of thing. it makes me a rectangle that is at the center of the screen. But it's normal or not ?
hello, I can bump my post, because even if xnifex answered a question I posed, it does not say if this is normal or not and whether I should return my phone warranty.
Thank you for responding.
FYI, have that on my Fuze, and also my Tilt 2. I believe it is within specification for the type of touch screen we have.
If this is happening to your phone, ask for a warranty exchange. this is known to happen, from what i've read, but it's bad & you need to get a different phone.

Hadware or Software Issue?

I have the dash for two weeks now (wm6.5)... about 3 days ago and out of the blue the lcd started to show this white scanlines. It was just placed next to the pc and connected by the usb cable when i noticed the problem (it wasn´t phisically damaged). I hard reseted it...nothing. Installed wm6 and wm5 and nothing.. the lines are still there. I am pretty upset with this matter
Is it the lcd or something else..?
How can i fix it and prevent this to happen again?
Does anybody know if this problem is covered by the warranty and under which arguments?
Thanks.
Here is a picture of the screen so you can get an idea...
http://www.subirimagenes.com/otros-htc620whitelines-3724327.html
Not a single answer to this post! Come on guys i am desperate...
MProdigy said:
Not a single answer to this post! Come on guys i am desperate...
Click to expand...
Click to collapse
Maybe something is loose regarding your lcd (hardware), If you haven't dropped maybe you should give a shot with your warranty and probably you will get a new dash
sure you have problem with your display.you must change,or if it is new go to store,for change.good luck,and a happy cristmanth
if you say you already did some hard reseting then it's a hardware problem.. if the warranty does not cover it then try to disarm it following the instructions that you can find in this forum.. suerte amigo!
Thanks guys for the advices. I purchased a new lcd, relaced it and now it works right, seems like the problem is solved. I hope i don´t get any more problems in the future cause the dash has everything i want in a mobile phone.
MProdigy said:
Thanks guys for the advices. I purchased a new lcd, relaced it and now it works right, seems like the problem is solved. I hope i don´t get any more problems in the future cause the dash has everything i want in a mobile phone.
Click to expand...
Click to collapse
Good to know that you solved your problem

[Q] I have the grounding issue (bad screen sensitivity)

Hi everybody! I have been reading here that some people had this issue, but I don't see how they solved it. I've had this issue since the beginning.
Basically, screen sensitivity is very bad when the device is unplugged, only when it's plugged in or holding it with both hands it responds correctly.
This is a problem for me, because for studying, i put the a100 on its stand case, and only need one finger to slide a word or ppt. With this grounding issue, i have to touch the a100 with both hands to make it react properly, it's very annoying and uncomfortable.
Should I take it to the technical support? it's a hardware problem? I tried the build.prop from crossix and still the same. And tried the recalibrate.apk without any success. I don't know what else I can do.
I'm still in guarantee, i'm thinking seriously to take it to SAT. But i have unlocked bootloader, how can i revert it? How should i prepare the device to keep manteining the guarantee?
people who sent the a100 to SAT with this problem, it was solved?
thanks, I really need a fix for this
I have installed the official ICS rom and now it seems locked again, and I'm not root anymore. I think it's prepared for SAT, so I've called acer technical support, they will take the tablet for repair on tuesday 15.
I will post the results when they send it back to me, if someone is interested.
Did you try it after the update to ICS? the OTA ICS updates did wonders for the sensitivity of most of our tabs.
Yes, this is happening since the beginning when I bought the tablet with honeycomb, and still happens in ICS. Let's see if the technical support can fix it! because I really love this a100 thanks!
it makes any difference to upgrade by OTA or by flashing the rom that's here? I have flashed ICS, not by OTA
Is your build .14? That's the one that seems to fix the touchscreen problems.
I have had the touchscreen issues since day one also. Same issues, works fine without a case in two hands, one handed or laying it on a table/couch the screen is jumpy, random touches, and glitchy multi-touch. I've run 3.2 gen2, ICS .014, and ICS .017. I've even popped it apart looking for something simple (and to take a look at the wifi antenna), but nothing obvious found. I would have to guess it is a manufacturing defect.
jakob95 said:
Is your build .14? That's the one that seems to fix the touchscreen problems.
Click to expand...
Click to collapse
Yes it's that build (downloaded from the russian link)
This happens also in the a100 of my uncle. He has not yet the build .14, but I'm starting to think this build won't work to fix that.
I thought this build would fix the problem, but...
I want to believe it's a problem with some tabs and I had bad luck, and that technical support will fix it.
I've made this video showing the problem.
http://www.youtube.com/watch?v=yIGnXT22vhA
Definitely a problem with your tablet, mine is perfect.
I have similar problem but not bad us yours .. but iam out of luck because i buy it from ebay with no gurantee
I will send it tomorrow, we will see what happens xD
today my dear tablet have been sent to be repaired. I hope it will be with me soon again! xD I'll keep informing!
I've just received an email saying that my tablet is repaired! they will send it to me in the next days, very fast! I don't know if this is good or bad... xD
aishaz said:
I've just received an email saying that my tablet is repaired! they will send it to me in the next days, very fast! I don't know if this is good or bad... xD
Click to expand...
Click to collapse
Well about all I can do is wish you good luck buddy
I just got a refurb off of ebay and it has a 90 day warranty thru Acer, and the fella I purchased it from.
I am not having any issues with the screen even using the stylus they sent with it.
I tried the stylus to see what the hype was with a stylus and found it to be just that hype.
Do you have any type of screen protector on your tab?
Sometimes certain ones can cause issues.
If your device is under warranty I would let them fix it.
yes I have a screen protector, but the issue is there even without it.
I will tell you when i recover my tab and see if it's fixed xD
yea its the device itself i had problems with mine.. it had become completely unresponsive after i rooted it and installed ics i sent it back to the factory took almost a month and got a new one i suggest u do the same
How do I get a new one? today I have received mine and the problem doesn't seem fixed I wonder what they did to think it was resolved
aishaz said:
How do I get a new one? today I have received mine and the problem doesn't seem fixed I wonder what they did to think it was resolved
Click to expand...
Click to collapse
To be honest I didn't think the problem would be resolved. Contact them again and tell them the problem is not resolved; I'm sorry to say this seems like a design issue.
On the other hand, maybe you are being overly critical? My tab works well, but if I want to make the touchscreen seem less than perfect, then I would have no problems doing so. However, in practice this is a non-issue, and I have not had a problem with either my previous tab (which I sent back because it stopped charging) or my current tab (which I've had for 5 days). Of course, this is after upgrading them to official ICS releases.
I don't think I'm being critical, the fact that I can't slide a document properly without having to hold the tab with both hands is very very annoying for me, since I want it to study and the idea was to keep the tab in a stand in the table and touch it only for sliding for example. I stopped using it for this purpose due to that.
Moreover, my mother has another cheaper tablet and tactil control works so much better... In the same situations that my tab. I envy her for that, cause my tab is over 200€ more expensive and it's suposed to be better xD
I have an exam today, i will try to find time to call acer to tell them the problem is not solved.

G2 types by itself, is unresponsive

Hey all, I've had my G2 for over a year now and I love it. A few days ago, the phone started going haywire. The screen has become unresponsive in some cases, while in other cases, it seems to have a mind of its own. It literally starts typing and keeps typing by itself (it seems to like typing the number 4 a lot). I tried installing another rom (CM7), but to no avail. Sometimes if I have the keyboard open, it helps a bit, but it doesn't totally stop the phone from doing things on its own.
If anyone know why this is happening and especially how to fix it, please give me a heads up.
Thx
Techngro said:
Hey all, I've had my G2 for over a year now and I love it. A few days ago, the phone started going haywire. The screen has become unresponsive in some cases, while in other cases, it seems to have a mind of its own. It literally starts typing and keeps typing by itself (it seems to like typing the number 4 a lot). I tried installing another rom (CM7), but to no avail. Sometimes if I have the keyboard open, it helps a bit, but it doesn't totally stop the phone from doing things on its own.
If anyone know why this is happening and especially how to fix it, please give me a heads up.
Thx
Click to expand...
Click to collapse
Lets just say your device has come to an end or you probably overworked it during its "youthful" days is quite common but for the time you have used it, it should still have alot of life in it i've had mine for over a year and its still cool. For the solution i think you should send it to the technical guys maybe an HTC service center or any good mobile service center cos i totally think this has nothing to do with software its hardware.
HIT THANKS IF I HELPED
Techngro said:
Hey all, I've had my G2 for over a year now and I love it. A few days ago, the phone started going haywire. The screen has become unresponsive in some cases, while in other cases, it seems to have a mind of its own. It literally starts typing and keeps typing by itself (it seems to like typing the number 4 a lot). I tried installing another rom (CM7), but to no avail. Sometimes if I have the keyboard open, it helps a bit, but it doesn't totally stop the phone from doing things on its own.
If anyone know why this is happening and especially how to fix it, please give me a heads up.
Thx
Click to expand...
Click to collapse
It's very likely that the screen digitizer has been damaged somehow, as this random touch signal behavior is a typical telltale. As you have verified that it's not a software issue by testing it in another ROM, a screen replacement would be likely needed. Send it back to HTC for a repair/replacement if yours is still under warranty, otherwise there will be third-party repair shops that you can consider.
Thanks for the responses guys. Sounds like dtt hit the nail on the head. I'm gonna look into replacing the digitizer myself. I think I can do it without a problem, and I don't have much to lose anyway if it goes wrong since the phone is unusable right now.

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