[Q] Touch malfunction - Xperia Z1 Q&A, Help & Troubleshooting

Hello lovely people of XDA.
Both my wife and me have the Z1, i for my part have experienced screen self cracking and now she is experiencing touch malfunction.
It acts out from time to time, making typing a pain in the a** and playing games even more dificult.
F.ex. if she presses the F key, it registers the D etc.
Ive made a video of this availible here:
http://youtu.be/McGnrGfVpq8 (Sorry about the music, but there was too mutch background noise).
This happens on the home screen, during Candy Crush(yeah i know) and during texting.
Ive repaired the phone twice(previous and newest firmware) via Sony PC Software and still its no good.
It even acted out on the first boot.
Has anyone ever seen anything like this?
Can't seem too find any solution.

CreeVal said:
Hello lovely people of XDA.
Both my wife and me have the Z1, i for my part have experienced screen self cracking and now she is experiencing touch malfunction.
It acts out from time to time, making typing a pain in the a** and playing games even more dificult.
F.ex. if she presses the F key, it registers the D etc.
Ive made a video of this availible here:
http://youtu.be/McGnrGfVpq8 (Sorry about the music, but there was too mutch background noise).
This happens on the home screen, during Candy Crush(yeah i know) and during texting.
Ive repaired the phone twice(previous and newest firmware) via Sony PC Software and still its no good.
It even acted out on the first boot.
Has anyone ever seen anything like this?
Can't seem too find any solution.
Click to expand...
Click to collapse
Theres a well documented thread about touchscreen issues, I myself was one of the people it affected, your problem sounds slightly different.
The method to test was put the phone on a flat surface and make contact with the screen, move around and if you notice a break in contact then you more than likely have the bug.
Holding the metal frame of the phone in your hand eradicated the issue for some (me included) but it was certainly a pain.
My problem went away on it's own but some weren't so lucky.
Have a search for the thread in here, it's more than likely still active.
If nothing helps from that thread then it's more than likely a case of doing a warranty repair. (if it's the same issue)

Hello there and thank you for your reply.
As it seems to me there has been no solution to the problem, ive tried holding the phone without a case and the problem persist.
People are talking about the new update fixing it, but ive tried both updating and reseting the phone so that did not do anything.
It seems like the only thing to do is to send it in for a warranty repair.
With my self cracking the workshop told me that some of the frames where faulty placed in the factory and therefore might crack the screen after a long time under pressure.
Perhaps this is related somehow, though it feels and looks like a software bug.
Thank you for your reply, i'll be sure to keep a look out on that thread. (i found it now, but i could not find it before i posted this :S)
Thanks again

The kitkat update was rumored to remedy these touch screen issues. Have you updated? My C6906 was giving me occasional touch screen issues but they are non-existent after updating.
Sent from my C6906 using XDA Premium 4 mobile app

Yes i have installed Kit Kat, seemed to help at first but started acting out again the same day.
I even did a factory reset with newest firmware downloaded through PC Companion.
I'll keep looking around and post my findings.(If any)
Update:
So we both sent our phones to the service center and sold them right afterwards. Could not find a solution for the problem and the service center ended up replacing my handset and my wifes screen.
I now have a Nexus 6(it's so fantastic!) and she has an iPhone6 plus(Blaaarh...)...

Related

Dimaond Gets Hot and Screen Alignment Goes Out

I have done a reasonable amount of searching on this and have not found anything specific to my problem so figured I should post a question.
I have an issue with my Dimaond when it gets hot generally either using Wifi or Phone Data connection that the screen goes out. Basically everything goes to the left side of the phone so if you hit the Task Icon in the top right corner you get the Start Menu. Phone is basically useless at this point and you have to wait for it to cool down. Has happened since day one and is generally worse when using it when charging. I was watching Utube on it the other night 5min video while on AC charge and it went out. I am running Dutty 2.5 Rom and 25.07 radio have tryed 25.08 and 25.05 no difference was happening when the phone had orginal HTC ROM as well. Also will happen on a long call if the screen is on.
Basically feel issue is hardware related and maybe faulty screen still under warrenty so wanted to know peoples opinion on weather I should send back. Problem is will take a couple of weeks and I don't really wnat to wait that long if I can help it. Also assume it would be best to flash standard ROM back, should I do anything with HARDSPL eg should this be changed back as well if I send it back.
And before anyone says it I have tryed searching this topic and have found lots about HOT dimaonds but nothing related to screen going out at the same time :-(
Thanks
I had this issue in my JasJam (Hermes) whre the screen would simply go white after a while of use and I would have to leave it for a while for it to work again.
Unfortunately it sa hardware issue and you should claim a warranty repair on it
I can't see how this could be a software problem so I figured it must be the screen eg hardware related. Would be nice to know if anyone has had the same issue with a dimaond... Seems we may be spending some time apart, just hope it doesn't take long to fix..
I've had the same issue
http://forum.xda-developers.com/showthread.php?t=428976
My first device had been replaced recently (i.e. today) by my network provider (o2) and the new device seems to work without any problems now even if it's "hot".
(i.e. default screen adjustment + creating heat by activating the phone, wlan, bt + recharging it)
I sent an email to HTC regarding the fault and they said it would have to go back for a warrenty repair. I brought it through a resellar so has to go back to HK from NZ so will be away three weeks uurggghhh... Just seems odd I don't have any physical damage on the screen but hte problem has been around since day one as I remember having the problem the first day I got it. Juyst seems to be getting worse and is easily reproduced by usiung utube over wifi gets hot and it is all over. Just wondering if I should put an offical ROM from HTC back on the device before I send it back as I currenty am running Dutty ROM, what do you think....
i put the original rom back on and they still found out the the rom had been flashed, and would not repair on warranty
yep, i also asked about this problem
http://forum.xda-developers.com/showthread.php?t=438733
there are some youtube video's of how the phone behaves
my phone seems to do it less frequently since stopping using panosha's rom
im using alpha zero 7 at the moment..
i've also noticed that it isnt necessarily a heat issue, my phone does it completely at random
yesterday i found though, that when the phone did the alignment issue, i gave it a good shake.. and hey.. its all aligned again?!
maybe it was just a fluke, it hasnt freaked out since..
holding thumbs
Hey,
I also have the same screen problem, but my Alignment goes to right.
If I press on the left side, a press on the right side is recognized.
Good to know that Im not the only one with this problem.
greets doena
I got my phone back a week ago replaced the screen has been away for over two months, complete disaster, anyway all sorted now and I have not had the problem since....
I had this exact same issue (out of the box).
It was a hardware fault and I exchanged it for another one.
Haven't had any problems since.
Minus-1 said:
I had this exact same issue (out of the box).
It was a hardware fault and I exchanged it for another one.
Haven't had any problems since.
Click to expand...
Click to collapse
Hardware's fault ? Most likely not. I will give u an example of why I think it was software related. My device ran hot as well but I simply switched roms and now it's the complete opposite. Your most recent device most likely come with a different Rom in the phone.

[Q] Touch screen dead spots

This may be a problem beyond the scope of android, but seeing as I'm running it, I thought I'd try here first.
I've noticed that the lower left hand side of my screen has a "dead spot" where touch is simply not registered. To illustrate, I went to screen calibration's test screen and drew a straight line along the edge of the screen. (See Attachment)
I've tried recalibrating the screen (manually and resetting to default calibration) as well as wiping data and reinstalling the system. Reinstalling the system worked once, but then the problem came back and subsequent reinstalls did not fix the issue.
I'm running Incubus26jc super froyo [RLS 12] on the 15-07-10 340X480 Froyo Kernel.
Anyone else seen anything like this? As far as I can tell, the problem is not getting any worse. Currently, it's only a hindrance when trying to use keys in that region, but I can work around it by switching to and from landscape. It's a bit of a hassle, so I'm hoping someone may be able to shed some light on the situation.
I was sure it was hardware until the system reinstall fixed it, but am now baffled as I can no longer replicate the fix.
I have not tried reinstalling the kernel but will at some point in the next day or so. I'd like to avoid switching back to WM to check if the problem persists, but may have to... we'll see. Doing everything I can to make this phone last until the Incredible month of February when I'm up for an upgrade.
dont know the issue resolution... but i have the same with my touch vogue.. and in the same 'area' apparently as well.
hard for me to hit the 'a' key on my keyboard. hehe
I'm glad to see I'm not the only one... anyone else?
Bottom right corner for me... I was able to calibrate around it but it took a few tries.
Sent from my Full Android on Vogue using XDA App
The sensitivity across my screen was inconsistent some time ago. I found that years of my abuse had taken a tole on the exterior of my phone. It eventually got worse and I bought a new housing (with a new digitizer) on ebay for a reasonable price. If it is hardware then it really isn't that hard to fix if you like taking things apart.
If you're sure that win mo accepts input from that part of the screen then nevermind my post. I would play with a painting app though and investigate the hardware further.
I may be talking a little out my a$$ with this part but.. is it possible that in calibrating your screen the os may change it's settings on how hard you have to press and such also. that may be how you got it working.
In any case, my investment in a hew housing was well worth it considering how modern my old phone has become thanks to the developers here.
gooph said:
I may be talking a little out my a$$ with this part but.. is it possible that in calibrating your screen the os may change it's settings on how hard you have to press and such also. that may be how you got it working.
Click to expand...
Click to collapse
In my case, no - when drawing a straight line down or across the screen, the line starts 'moving' away from the stylus (like the picture in the OP).
Gah... now it's shutting itself off randomly and the dead spot has grown. Not good at all.
Yeah, mine was better for a while then 'slid' again. I ended up swapping the digitizer with my other Vogue and things are back to normal.
Sent from my Full Android on Vogue using XDA App
I have another vogue, but am weary of doing anything like that. How hard was it to get done?
All you need to do is switch the front half of the housing rather than the digitizer itself- it's not hard. There's a teardown guide somewhere in the forum, Google Vogue teardown and it should be at the top.
Sent from my Full Android on Vogue using XDA App
The only thing that worries me is that my spare vogue exists because it was dropped in a muddy puddle. I'm hoping the water damage isn't too bad. Guess we'll just have to see.
it is really annoying
I have the exact same problem and I too thought it was a hardware issue till I saw this Thread. I was ignoring it till two days ago when it started really bugging me. Now, I don't even need to press any button and it automatically gets pressed around the curve and I have a google search box there, so it keeps on searching for eee or sss randomly and started draining my battery. Is there a proper fix for this?
I thought I'd chime in too... I could never seem to calibrate the touchscreen properly in either Android or Debian. Changing the screen resolution (i.e. msmfb scaling) seems to have no effect, whether it's 240x320 or 640x480. Any area within 5mm or so of the edges of the LCD will register as the edge, making "A" and several other keys on the virtual keyboard impossible to hit. Passing calibration values to the kernel didn't seem to fix anything, but it's possible I was using them the wrong way...
i have the same kind of problem on my Kaiser... i think its realted to hardware... either the housing or the digitizer...
I am experiencing the same problem on X10 mini pro. the same screen spot exactly, i have to try very hard to get z or x or shift to work. Sometimes when I try locking the screen and unlocking it back, it works.
update
so after a very long time with this problem i decided to change the digitizer and problem is gonne. visualy the broken digitizer had nothing wrong with it. The fix was fairly easy though, there is no glued parts involved into getting a new digitizer on the u20i.
Touch Screen
I just bought a brand new Cubot One and it looks more than perfect! It has just a little problem with the touch screen ( I think its the software, need ROM change). There is a dead line on the right side of the screen that touch doesn't work at all. Any solutions? Anyone faced that before? Can I fix it myself or do I have to send it back for replacement? Is there any video or guide that shows its done?
I uploaded a video on YouTube to show the problem but i cant post it yet.. (new member)
You can write "Cubot One touch screen problem" and it's the 1st one.
Thank You!

Flickering home screen issue on HD7

Hi Guys, the home screen (and all other screens on the phone) flicker and fizz on my HD7. It comes and goes. It started doing it yesterday and a reboot fixed it, but its come back today. It even got to the point where I could not unlock the phone because I couldn't see the keyboard on the screen. The whole screen was black. I eventually managed to unlock the phone because I remembered the location of the keys, but its a bit weird. The only thing I have installed recently is the Faceboot app. I think I'll remove that to see if it makes a difference.
Video here http://www.youtube.com/watch?v=uV2rREcoiOQ
Not sure whats going on with youtube, but I recorded another one here http://www.youtube.com/watch?v=_XDcA7c2Rb0
If it doesn't work, try again in an hour or so... hopefully youtube will have pulled its finger out by then and finished processing the vid!
Here's another vid of the keyboard going mad in the messaging screen... hohum..
http://www.youtube.com/watch?v=goFLPT9UcCM
If you press the volume buttons when it happens, it seems to fix it (well it did for me the one time I got to try it).
Gordon.
mictho100 said:
Hi Guys, the home screen (and all other screens on the phone) flicker and fizz on my HD7. It comes and goes. It started doing it yesterday and a reboot fixed it, but its come back today. It even got to the point where I could not unlock the phone because I couldn't see the keyboard on the screen. The whole screen was black. I eventually managed to unlock the phone because I remembered the location of the keys, but its a bit weird. The only thing I have installed recently is the Faceboot app. I think I'll remove that to see if it makes a difference.
Video here http://www.youtube.com/watch?v=uV2rREcoiOQ
Click to expand...
Click to collapse
What were you doing before this happened??
Absolutely nothing! I literally just press the power button to turn on the screen to login to the phone (note: Im not booting, the phone is only asleep) and the issue is there. Its doing it by itself. As far as I can trace back my steps there could be two causes I can think of. Though these might just be a coincidence obviously. I installed the Facebook App (which is now removed) and I changed the wallpaper to a photo I took with the phone's camera. Not exactly 'hacking'.... I removed the Faebook app and changed the wallpaper and rebooted the phone. Its been OK since yesterday, but we'll have to wait a bit longer to see whether it returns. The keyboard bit is especially funky, as its a pain to type anything when all the keys are flashing randomly....
This has happened about 3 times to me -- always when I'm running some fairly intensive UI operations - scrolling around the Zune hub, the marketplace. Could be a coincidence, I guess.
check this out
http://social.answers.microsoft.com...7/thread/a67013c6-5e38-47ac-a486-495e8b1dbdac
+1 (HD7) Happened a couple of times (wasn't doing anything special).
happens to me from time to time.. sometimes itll go away or i just reboot the phone.
it seems to happen when im doing a lot of things, i figure its just early glitches in the software
I've had both of these glitches today (the flickering home screen and the bizarre looking messages app), and I only bought the new handset yesterday. I know it's early days for WP7, but I really would have hoped there'd be some degree of stability.
Anyway, regardless of what I think, I'd appreciate the ability to terminate an application myself since this would appear to be related to a process not releasing the screen completely. Can't do it at the moment, but I hope Microsoft can give us that capability in the first service release.
Similar Problem
Hey,
I've watched the Youtube videos that were posted and my problem is similar but worse, the screen doesn't just flicker it turns into a kind of trail when I scroll up and down on the home page. So for example my top two tiles are Phone and Messaging, when this happens I get partial images of those two tiles up and down the screen.
I'm not sure whether this is just a software issue or whether its worth returning now while its still relatively new and getting a new one.
I will see if I can find the photos I took on another phone and post them.
Any thoughts will be gratefully received.
Many thanks,
Jess
Hi Guys,
Sorry to drag up an old thread but I work for a major UK Network in the technical team and I've had a few customers reporting this fault on their HD7's. I'm just interested to see the general consensus of users and whether they have suffered this issue be it intermittently, constantly or even just once or twice. I'm also interested in whether there are any temporary solutions to the problem. I may be able to raise this further with HTC although from the looks of it, there are numerous cases open regarding this complaint. The puzzling factor is it only seems to affect the HD7 and not other WP7 handsets.
Thanks in advance.
Just once for me. What I noticed about it when it happened, was that it reminds me of the gleen flicker on the xbox360 when you power it off.
I get my screen completely garbagging maybe twice a week, reboot cures it. I suspect a firmware glitch which I'm hoping Nodo will cure.
lynxboy said:
Hi Guys,
Sorry to drag up an old thread but I work for a major UK Network in the technical team and I've had a few customers reporting this fault on their HD7's. I'm just interested to see the general consensus of users and whether they have suffered this issue be it intermittently, constantly or even just once or twice. I'm also interested in whether there are any temporary solutions to the problem. I may be able to raise this further with HTC although from the looks of it, there are numerous cases open regarding this complaint. The puzzling factor is it only seems to affect the HD7 and not other WP7 handsets.
Thanks in advance.
Click to expand...
Click to collapse
As you imply, this is a known issue. Its also been fixed already by HTC in a subsequent firmware which football has made available on another thread. For those not comfortable with flashing the firmware manually the updated firmware will be included in the NODO update.
A post in this thread http://forum.xda-developers.com/showthread.php?t=1003919&page=2 confirms that the firmware is updated once Nodo is applied to a handset - 2250.09.16901.401 to be exact.
I manually flashed firmware 2250.09.16803.206 to my device which fixed the video issues.
Seems rather telling that you have come to XDA-devs rather go through your carriers formal business ties to HTC??

[POOL] About the touchscreen problem

I only discovered the touchscreen issue yesterday doing the test of the other thread. So, i would like to every z1 owner to answer this pool to know how bad things are and if we can try to find a solution, since i think Sony won't.
So, please answer the poll and post any useful information. I'll start.
My phone model is C6943, I currently don't use case and I'm using a screen protection. I can do the xperia touchscreen test without touching the phone body without problem and also doesn't have problem with pattern password.
ffp. said:
I only discovered the touchscreen issue yesterday doing the test of the other thread. So, i would like to every z1 owner to answer this pool to know how bad things are and if we can try to find a solution, since i think Sony won't.
So, please answer the pool and post any useful information. I'll start.
My phone model is C6943, I currently don't use case and I'm using a screen protection. I can do the xperia touchscreen test without touching the phone body without problem and also doesn't have problem with pattern password.
Click to expand...
Click to collapse
Pool? I think you mean "poll"
My 6902 is completely screwed. At first I used a screen protector and the problem wasn't too bad. Then I removed it when I took the phone in to get another issue fixed and soon after that the problem got very bad. I was traveling so couldn't go back to the service center. Now it's a bit better, randomly works and randomly doesn't. When I was home in cold weather though it seemed a lot worse than it is now that I'm back in India where it's warm. Not sure if temperature is a factor, or could be conscience. But a few weeks ago it was so bad you couldn't type even a two letter word using Swype.
Also, I now have a part of my screen in the form of a horizontal line where touch doesn't work at all. No single touch and no drag. Completely dead. Taking it to the service center soon.
You should vote on the first option, then
Guys, check my post "News from whats is causing touch screen problem" to see if is your case!
ghostman2 said:
Guys, check my post "News from whats is causing touch screen problem" to see if is your case!
Click to expand...
Click to collapse
It's not.
I got problem unlocking with patterns, scrolling pages and when I play some games after few minutes it stop working so I voted the first option. My phone is back to Sony, I hope they know what to do and at last it's Made in China.
Please, post if you use case and screen protections too. This could help understanding the problem.
Additional data : Z1 is being handled in a leather case, back and screen protector removed ( not the one with the logo, the plastic ones that makes your camera blurry )
Touchscreen problem seen in the game Alien Shooter, after some playing, the touch screen becomes less and less responsive ( i tap a button to shoot and use some onscreen joystick to move ) - both become unresponsive/less responsive as you play and the phone gathers some heat ( you can feel the touchscreen becoming hotter )
i have a simple tpu case, i had a bit of problem when playing all touch-based games (not ones with gyro like asphalt).
ever since i got the case it's better, i have the ASF and nillkin matte screen protector
ffp. said:
Please, post if you use case and screen protections too. This could help understanding the problem.
Click to expand...
Click to collapse
I did not use any case just a chip screen protector. Anyway on a good healthy touch screen the screen protector should not influence the touch screen respond.
Hey guys, I have also this touchscreen issue, and I would appreciate if you give a feedback about warranty service, if sony accepted the problem and replaced a touchpanel or not, and also if the replaced touchscreen is better or not. I´m also thinking about sending it back for warranty repair.
I have also found that my phones touch screen is temperature sensitive, when it get cold or warm it just refuses to detect touch actions. Try it yourself put the phone into cold/hot water for 5 second, take it out, quickly clean the display from water and test the touchscreen. I first tought this behavior is normal and I didn´t cared until I started to play games. After 15minutes of playing the touchscreen bug every time appears. But also after a while its randomly disappears. So this thing is strange. (the bug appears identically also when I have my phone in a plastic case)
Vippo321 said:
Hey guys, I have also this touchscreen issue, and I would appreciate if you give a feedback about warranty service, if sony accepted the problem and replaced a touchpanel or not, and also if the replaced touchscreen is better or not. I´m also thinking about sending it back for warranty repair.
I have also found that my phones touch screen is temperature sensitive, when it get cold or warm it just refuses to detect touch actions. Try it yourself put the phone into cold/hot water for 5 second, take it out, quickly clean the display from water and test the touchscreen. I first tought this behavior is normal and I didn´t cared until I started to play games. After 15minutes of playing the touchscreen bug every time appears. But also after a while its randomly disappears. So this thing is strange. (the bug appears identically also when I have my phone in a plastic case)
Click to expand...
Click to collapse
For me the warranty worked perfectly, i changed the phone 3 times until get a working one, i called Sony, discribed my problem and they changed for me, only 2 days for the change. BUT i recorded the problem and sent to them, so they accept the change.
Vippo321 said:
Hey guys, I have also this touchscreen issue, and I would appreciate if you give a feedback about warranty service, if sony accepted the problem and replaced a touchpanel or not, and also if the replaced touchscreen is better or not. I´m also thinking about sending it back for warranty repair.
I have also found that my phones touch screen is temperature sensitive, when it get cold or warm it just refuses to detect touch actions. Try it yourself put the phone into cold/hot water for 5 second, take it out, quickly clean the display from water and test the touchscreen. I first tought this behavior is normal and I didn´t cared until I started to play games. After 15minutes of playing the touchscreen bug every time appears. But also after a while its randomly disappears. So this thing is strange. (the bug appears identically also when I have my phone in a plastic case)
Click to expand...
Click to collapse
Same here. I sent my phone back last week to the store where I bought it 2 months ago. They will send the phone to Sony Center but the time for repair or replace the device will not be 2 or 3 days but from 2 weeks to no eta. When the phone will come back to the store they will send the phone to me. I will post if the problem persist or not.
The problem is if they return a phone with the same problem.
ffp. said:
The problem is if they return a phone with the same problem.
Click to expand...
Click to collapse
They should be aware about this issue even on the new device so at this time they probably will check that but if they return a phone with the same problem, I will send it back again like many did. Someone had to replace the phone 3 times and I will do the same.
IYeah, you will be a long time without your phone though. I think I'll wait a bit since i rarely get the error and actually only when i try to reproduce it. How bad was yours?
ffp. said:
IYeah, you will be a long time without your phone though.
Click to expand...
Click to collapse
What I can do, I want a fully working Z1, I paid for it.
ffp. said:
I think I'll wait a bit since i rarely get the error and actually only when i try to reproduce it. How bad was yours?
Click to expand...
Click to collapse
I was able to reproduce the problem in many ways, Touch Screen Test, Opening the phone with Patterns, Scrolling Pages or with Launcher instead of switch the page it was opening the applications and at last when I was gaming at one point the touch stopped working and I had to wait, so this made my mind to send it back. On daily use was all ok but in some circumstances was frustrating.
i had the problem with cm11. and when I retored to stock then the problem was gone:S
I'm on stock and I got the problem.
Today for the first time I got the problem when writing on handrite. So I thought about using my phone warranty to get anotehr one. But it don't always fails when i do the method to reproduce it. So, how do you test if your new phone is working and how do you prove that it isn't? I mean what if i take the phone to warranty and it works?
And for you who already changed phone, it is working?
ffp said:
'm on stock and I got the problem.
Today for the first time I got the problem when writing on handrite. So I thought about using my phone warranty to get anotehr one. But it don't always fails when i do the method to reproduce it. So, how do you test if your new phone is working and how do you prove that it isn't? I mean what if i take the phone to warranty and it works?
And for you who already changed phone, it is working?
Click to expand...
Click to collapse
For me after the 3rd change is working now, here is what i did: i recorded the error and send it togheter with the phone. They saw the video and changed imediately.
Sent from my C6943 using xda app-developers app
Did youu made the method to reproduce and it didn't failed? For how long do you have the 3rd phone?

Touchscreen malfunctioning.

Hello,
I bought a used Z1 almost a year ago. Everything was working perfectly, I was very content with my purchase but I broke the display shortly after. I got it changed at a local repairman but ever since then, my screen acts weirdly.
1. When I use the phone for 10-15minutes, it gets a little warm and so do my fingers and then the touchscreen starts acting weird and pressing stuff on its own. If I lock/unlock it, the problem is solved.
2. Same thing happens when the phone is turned sideways for a few minutes and when I flip it vertically, the touchscreen starts acting weird. Lock/unlock fixes the issue again.
The fact that lock/unlock fixes it leads me to believe that it's not a hardware problem. I started a research and found this topic - https://forum.xda-developers.com/showthread.php?t=2691849 , however it's a bit outdated and is already edited saying not to try the fix. I'm not proficient enough at this so I cannot really grasp the idea behind the topic mentioned earlier and can't get myself to try it cause it might brick my phone or something.
Any suggestions would be helpful.
Regards:good:
sorry to say you friend but it's a hardware problem it's something related whut the screen contrast I've tried everything the only thing left it's to get an original screen replacement and I haven't been able to get one in my country
Generic Screen, that's the problem, i would never recommend to buy a "new" screen, always buy an used one or a phone with broken motherboard and swap them imo
tbh, your problem is weird to, may be a bad installation, i had the same problem in a z1 that i use for games, disassembly all the phone and now I'm using the screen without gluing to the base and the problem was "solved"

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