Database Develop

[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?

Help with touch related problem

Hi guys,
My Xperia ZR started behaving abnormally some days back, I put "screentouchtest" app and found that there were random inputs on the phone which made the phone go useless... Check the screen shot attached.
So I tried to make an app that will disable only that part on my screen and I was successful at it... Check screenshot attached. I could then at least use my phone to some extent.
But now the frequency of these random touch inputs have increased and that has made it again go unusable...
Problem is that I made this app as a floating app and whenever user touches other part of the phone , touch below the unblocked area is activated.
SO now I wanted to disable the touch completely over this area...any help will be appreciated.
Sony says it is due to water logging in the motherboard and no warranty will be given.

You are not alone!
Having the same problem here. Random touch inputs on the top right corner of device. I can assure you it's not because of water log of any sorts because i have opened ,checked, dried and even tested the touch display. Its a software related issue I guess which I am not able to pinpoint or understand. I wish someone from the forum helps with it.

water logging? did your phone get wet some time? its waterproof phone and no warranty given? :laugh: screw sony in consumer court

highevolutionary said:
Having the same problem here. Random touch inputs on the top right corner of device. I can assure you it's not because of water log of any sorts because i have opened ,checked, dried and even tested the touch display. Its a software related issue I guess which I am not able to pinpoint or understand. I wish someone from the forum helps with it.
Click to expand...
Click to collapse
If you think its a software problem, i'll try putting some custom ROM.
sourabhp said:
water logging? did your phone get wet some time? its waterproof phone and no warranty given? :laugh: screw sony in consumer court
Click to expand...
Click to collapse
Yeah I know Its waterproof. My brother was using it so not sure if there was water logging. But when we went to customer service the condition of the mobile was not good(Plastic that covers charging port was loose) so couldnt fight actually.

Custom rom doesn't help
Engic0 said:
If you think its a software problem, i'll try putting some custom ROM.
Yeah I know Its waterproof. My brother was using it so not sure if there was water logging. But when we went to customer service the condition of the mobile was not good(Plastic that covers charging port was loose) so couldnt fight actually.
Click to expand...
Click to collapse
Sorry to say unfortunately custom ROM doesn't help either. After I installed one just to see if the problem persists, To my surprise it didn't! But after a week or so the pendulum was back to square one. So I had to roll back. I really don't know how to go about this problem I think the problem is because of a bug of some sorts which causes the chip to send signals to the display addressing that its being touched or whatever. Anyway this is just my guess. You can try installing a custom ROM for your device and see if the issue ceases. In that case my problem would be just device specific. Do share your results after you install a custom ROM :good:.

highevolutionary said:
Sorry to say unfortunately custom ROM doesn't help either. After I installed one just to see if the problem persists, To my surprise it didn't! But after a week or so the pendulum was back to square one. So I had to roll back. I really don't know how to go about this problem I think the problem is because of a bug of some sorts which causes the chip to send signals to the display addressing that its being touched or whatever. Anyway this is just my guess. You can try installing a custom ROM for your device and see if the issue ceases. In that case my problem would be just device specific. Do share your results after you install a custom ROM :good:.
Click to expand...
Click to collapse
May be there is a problem with the touch digitizer under the LCD panel which is misbehaving. No software can fix it. You will need to replace the touch digitizer along with LCD screen as they are sold as single unit. Check online if you can find the parts and ask any local mobile repairer to replace it. :good:

NO Luck with Custom ROM
I put Android Lollipop (CM12 Port) and there have been no change. Looks like the problem is with digitizer, last time I told local repair shop to replace the screen they said they cant separate the screen and had no clue. But I searched and found out from youtube videos that it can be done. Now all I have to do is buy Screen+Digitizer.
As you can see the random touch strip have moved little upwards from my earlier screenshots. That happened months back. If anyone wants the app I made then let me know. It helps me to some extent.

Engic0 said:
I put Android Lollipop (CM12 Port) and there have been no change. Looks like the problem is with digitizer, last time I told local repair shop to replace the screen they said they cant separate the screen and had no clue. But I searched and found out from youtube videos that it can be done. Now all I have to do is buy Screen+Digitizer.
As you can see the random touch strip have moved little upwards from my earlier screenshots. That happened months back. If anyone wants the app I made then let me know. It helps me to some extent.
Click to expand...
Click to collapse
LCD with digitizer is around INR 4000
Which app did you make? What does it do?

sourabhp said:
LCD with digitizer is around INR 4000
Which app did you make? What does it do?
Click to expand...
Click to collapse
Where can I buy 1? Online? Link Please...
Since there are random touches on my phone, I made app that blocks this touch... Check the screenshots, I have "Show Touches" Option ON from Developer Settings. This makes all the touches show white marker... So I made app that floats over the screen and wont show any response when there are touches over that area. "Semi Transparent Area" in the screenshot - Touch wont work over that part. App wont completely disable the touch though, if we press other part of screen for that time app gets disabled...

Engic0 said:
Where can I buy 1? Online? Link Please...
Since there are random touches on my phone, I made app that blocks this touch... Check the screenshots, I have "Show Touches" Option ON from Developer Settings. This makes all the touches show white marker... So I made app that floats over the screen and wont show any response when there are touches over that area. "Semi Transparent Area" in the screenshot - Touch wont work over that part. App wont completely disable the touch though, if we press other part of screen for that time app gets disabled...
Click to expand...
Click to collapse
https://www.google.co.in/?gfe_rd=cr&ei=8BTTVIDzOc6AuASH8oCQCQ&gws_rd=ssl#q=sony+xperia+zr+lcd
Use google with different keywords

sourabhp said:
https://www.google.co.in/?gfe_rd=cr&ei=8BTTVIDzOc6AuASH8oCQCQ&gws_rd=ssl#q=sony+xperia+zr+lcd
Use google with different keywords
Click to expand...
Click to collapse
lol Okay

SOLUTION!!
Engic0 said:
lol Okay
Click to expand...
Click to collapse
Finally, a solution. Time for a digitizer+screen. Thank you guys.

Hey what is the app you made? I'm in the same boat but can't really afford a new digitizer....

Yep i need it too. It will be greatly appreciated if you share your app here. Thanks in advance.
Sent from my Sparkle V using Tapatalk

sorry guys for late reply!
I am attaching the apk here...

I have this problem too but it only happens if the phone screen get wet
Some time it happen randomly but when i press on the screen at bottom and on led gently it disappear and back to normal

Thank you!
The Float APK solved the major issue of my faulty touch screen in my Nexus 4. There are two lines in my screen where the touch is not working anymore. One of them is having several crazy clicks making my phone somehow useless. By using this app, I can prevent that, which is great!
Two issues I've got:
- the textbox to set the distance from the top is located exactly in the first dead line! So I need to turn my phone sideways to be edit to click there and edit its value.
- when using the phone in horizontal mode, blocked zone turns as well, but the faulty zone is fixed there.
I'm wondering if you might share with us the source code or maybe you consider to make some improvements on it?
Thank you so much for sharing this app here!

thanks for this app solution.
I too have problem of ghost touches. This app definately helps with that and makes the phone somewhat usable again.
The only problem is that some ghost touches are continous (it's like someone presses their finger on the screen and keeps holding it there). This makes action by other touches unresponsive.
Maybe we can find a solution for this in the float app?

Source code for the app
Finally since many of you requested, here is the source code! - Stop Touch - Source Code

Screen Flickering

Hey guys
I have a very strange problem with my Huawei P10
About 2 weeks ago, I noticed that two purple horizontal stripes are appearing in a 3-4sec sequence
Normally, I would immediately ask for a repair, but there's a thing which persecutes me: it only happens when I don't touch the screen for longer than 3-4sec
When there's a continuous contact with the screen (e.g when writing a message) nothing happens, everything is fine and dandy, but whenever I leave the screen for itself for 3 or more seconds (e.g when watching a movie), the stripes start to appear every few seconds, and continue until the screen goes dark or until I touch it again, but after touching it it still takes only a few seconds for the stripes to sequentially flicker again
Here's what I've tried so far (no result):
- safe mode
- factory reset
- cache partition wiping
- cord input deep clean
What may be the reason?

Hey.
It's 100% a board or Display issue. send it for repairs. but i believe maybe you've dropped ur phone. Anyways Huawei knows better.

Erfan_rv said:
Hey.
It's 100% a board or Display issue. send it for repairs. but i believe maybe you've dropped ur phone. Anyways Huawei knows better.
Click to expand...
Click to collapse
It's quite complicated
I once dropped it, but even after that, the previous LCD worked fine, there were no errors other than broken glass, so I guess we could exclude a board issue and lean toward your second option, as now that the LCD has been replaced, the fault occurs
What's more, I noticed that if I press the Home Key, and then put my finger in the bottom right corner and hold it, I can still use the whole LCD space without the flickering (I need to press the Home Key first so that it works after I hold my finger in the corner)
It's like the LCD needs to be in contact with your finger all the time to avoid that, which has led me to an idea: would a tempered glass solve that maybe?

fengels said:
It's quite complicated
I once dropped it, but even after that, the previous LCD worked fine, there were no errors other than broken glass, so I guess we could exclude a board issue and lean toward your second option, as now that the LCD has been replaced, the fault occurs
What's more, I noticed that if I press the Home Key, and then put my finger in the bottom right corner and hold it, I can still use the whole LCD space without the flickering (I need to press the Home Key first so that it works after I hold my finger in the corner)
It's like the LCD needs to be in contact with your finger all the time to avoid that, which has led me to an idea: would a tempered glass solve that maybe?
Click to expand...
Click to collapse
I can't really answer for sure but i believe if there's a Huawei service center in your city and you try to fix ur broken huawei, your wasting your time. Whatever solution u apply on ur phone its just gonna be temporary since u hide your problem and not solved it.

Erfan_rv said:
I can't really answer for sure but i believe if there's a Huawei service center in your city and you try to fix ur broken huawei, your wasting your time. Whatever solution u apply on ur phone its just gonna be temporary since u hide your problem and not solved it.
Click to expand...
Click to collapse
I still think (or should I say believe ) that there's a solution which doesn't involve another screen replacement
As for your "temporary solution" mention, I guess if I found one, it wouldn't be temporary, since the fault doesn't progress, it's been the same for a month or so when it first occured, which gives me another reason not to replace the screen and keep looking for other possibilities
I don't need a Huawei service center, I can replace the LCD myself (didn't do that the first time though), but it still involves spending money, whereas I've been looking for unpaid solutions the whole time; getting a new LCD is an extremity

fengels said:
I still think (or should I say believe ) that there's a solution which doesn't involve another screen replacement
As for your "temporary solution" mention, I guess if I found one, it wouldn't be temporary, since the fault doesn't progress, it's been the same for a month or so when it first occured, which gives me another reason not to replace the screen and keep looking for other possibilities
I don't need a Huawei service center, I can replace the LCD myself (didn't do that the first time though), but it still involves spending money, whereas I've been looking for unpaid solutions the whole time; getting a new LCD is an extremity
Click to expand...
Click to collapse
You can ask them to diagnose it and tell you about problem noone makes you pay for a lcd. And after reading your message over and over (And since i repair TVs and everything with electronics inside) i think it also can be your touch or display controller ic. Mostly it could be from touch ic since screen works fine while its in touch with something. But someone has to try your lcd or mb on a healthy one to make sure. which you can't do nothing like that. or do you?

@fengels did You bought original lcd, where can I buy it in good price?

I know this problem from older galaxy series like s5. The fix for this most of the time was disable auto brightness or higher the brightness on auto brightness. Don't know if this is the same problem, but it could be a try. Also don't know which cause this strange problem. Hope it can help you

Syco2oo5 said:
I know this problem from older galaxy series like s5. The fix for this most of the time was disable auto brightness or higher the brightness on auto brightness. Don't know if this is the same problem, but it could be a try. Also don't know which cause this strange problem. Hope it can help you
Click to expand...
Click to collapse
No, it's a different problem, in the galaxy series the whole screen would flicker, whereas in my P10 it's only 2 horizontal stripes appearing in a 4-5 sec sequence whenever I leave the screen untouched for longer than 5sec
Playing around with the brightness doesn't solve that unfortunately, actually no in-device settings do, as I've tried almost every single option which is screen-related, like switching the eye comfort mode on, but still no result
The main reason why I'm still looking for an unpaid solution is that apart from this one error, the phone is like brand new, everything works fine

ok, so if I understad the problem shows up after you replaced the LCD display? So do you really think is more software related than hardware? I personally would send it to diagnose and repair.

DallasCZ said:
ok, so if I understad the problem shows up after you replaced the LCD display? So do you really think is more software related than hardware? I personally would send it to diagnose and repair.
Click to expand...
Click to collapse
The thing is it didn't show up immediately, I had used the phone for some time with no errors before it first occured
Also, since the new LCD was set, I haven't done any physical damage to it, I've never dropped or sunk the phone
Since you guys mostly advise me to send it, I guess that's what I will have to do

fengels said:
The thing is it didn't show up immediately, I had used the phone for some time with no errors before it first occured
Also, since the new LCD was set, I haven't done any physical damage to it, I've never dropped or sunk the phone
Since you guys mostly advise me to send it, I guess that's what I will have to do
Click to expand...
Click to collapse
While you were replacing screen, did you turn your device off and disconnect the battery? and i think cleaning all cables coming from LCD and related sockets on motherboard can help. Use thinner or alcohol and if you wanna use thinner be careful so it wouldn't touch anything except golden contacts. Thinner is dangerous and affects ur phone color and plastic parts.

Erfan_rv said:
While you were replacing screen, did you turn your device off and disconnect the battery? and i think cleaning all cables coming from LCD and related sockets on motherboard can help. Use thinner or alcohol and if you wanna use thinner be careful so it wouldn't touch anything except golden contacts. Thinner is dangerous and affects ur phone color and plastic parts.
Click to expand...
Click to collapse
I did turn the device off, but I didn't take the battery off, since it's strongly glued to the phone's body, and I didn't want to damage it
Anyway, could not taking the battery off really be the reason?
As for cleaning, I did it by simply blowing out all the potential dirt, I'm inexperienced in thinner and alcohol cleaning

fengels said:
I did turn the device off, but I didn't take the battery off, since it's strongly glued to the phone's body, and I didn't want to damage it
Anyway, could not taking the battery off really be the reason?
As for cleaning, I did it by simply blowing out all the potential dirt, I'm inexperienced in thinner and alcohol cleaning
Click to expand...
Click to collapse
I am not sure butbon some phones it damages screen. I've seen this on laptops. But anyways its done. Open ur phone and use alcohol. put 2 drops of alcohol on each socket and flat cable connectors and brush it with a soft brush. u don't want to bent any golden contact. It's last thing u can do to fix it without paying for hardware related stuff.

Erfan_rv said:
I am not sure butbon some phones it damages screen. I've seen this on laptops. But anyways its done. Open ur phone and use alcohol. put 2 drops of alcohol on each socket and flat cable connectors and brush it with a soft brush. u don't want to bent any golden contact. It's last thing u can do to fix it without paying for hardware related stuff.
Click to expand...
Click to collapse
Well, will definitely try it then, but what alcohol? Does it need to be something specific?

fengels said:
Well, will definitely try it then, but what alcohol? Does it need to be something specific?
Click to expand...
Click to collapse
Just regular alcohol that drug stores sell. for using on injection. sorry my English is awful.

Ghost touch on top edge

Hello. Since few weeks I have extreme problem with ghost touch issue on Just top of the screen where the notifications are. I've turned on the programist options in order to see where it happens.
It looks like multiple ghost touch on the top edge on hole width. Sometimes the area respond to my touch, but most of the Time does not.
Happens random, case or screen protector is not the problem, tried all the options.
I have found some solutions from pocophone, but neither of them works.
Disabling gestures, miui optimalization, screenshot gestures, non.
Tried factory reset, updating to miui 11, nothing improved. After factory reset no problem for 1 day, not sure if there is a correlation.
I Will try to record the problem when it Will happen again.
Do you have any advice? I have warranty but at this moment would like to try all avaible solutions. Thanks in advance.
EDIT
Here is my video how it looks
https://photos.app.goo.gl/qnSkPZ6UwYVqsYY88

ooooh man, finally someone with the same problem, and cant find why its happening
it happens randomly, but when its happening the only way i can stop it is tighting it as if choking it. i dont want to send it to warranty.....

Well I am going to send it to warranty next week. I dont like the fact that I Will he without the Phone for a month, but hope they Will change the screen and it Will be fine.
My first xiaomi, always had Samsung and everything was alright. Phone in overal is great but I am very disappointed with this issue.

mist813 said:
Well I am going to send it to warranty next week. I dont like the fact that I Will he without the Phone for a month, but hope they Will change the screen and it Will be fine.
My first xiaomi, always had Samsung and everything was alright. Phone in overal is great but I am very disappointed with this issue.
Click to expand...
Click to collapse
Im the same, just noticed, after 2 days without issues that i was recording a telegram audio and it happend, idk its kinda clueless always

Man, definetly it has something to do with software, just a few moments before posting this i had the issue and it didnt want to leave so i had to restart the phone, first time this way.

Guys I found out what's causing the issue!!! It's not software or hardware. If you have the original Xiaomi case that comes with the phone it causes the ghost touches! I tried removing it 2 times and each time I put it on I experience the ghost touches and each time I remove it they stop for 1+ day which means that the case is causing them. My guess is that tiny particles are stuck between the case and the phone making it do this.

had this on my previous phone, had to rma it

Shpagata said:
Guys I found out what's causing the issue!!! It's not software or hardware. If you have the original Xiaomi case that comes with the phone it causes the ghost touches! I tried removing it 2 times and each time I put it on I experience the ghost touches and each time I remove it they stop for 1+ day which means that the case is causing them. My guess is that tiny particles are stuck between the case and the phone making it do this.
Click to expand...
Click to collapse
Just found i had a spigen clear case(bulky) and since i got back to Xiaomi's case it is happening a lot less than before.

My problem happens even without the case, and I used Nillkin Nature. Phone is in service currently. When it gets back I will tell you

Lol, how can this be? I believe you, though.
But oem case doesn't even touch the screen properly.
Sent from my Mi 9T Pro using Tapatalk

Phone sent to Service. After two weeks it is coming back to me with replaced screen. In about two days I will check if everything is fine.

Im waiting for what u have to say man, cuz i tried to rma it but they have it under review since last friday and today its being so ****ing annoyng that i want to broke the phone man

After screen replacement everything is Perfect ?

mist813 said:
After screen replacement everything is Perfect
Click to expand...
Click to collapse
Yesterday and today have been terrible, ill be sending the phone on monday, ty man, hope it will not happen again

mist813 said:
My problem happens even without the case, and I used Nillkin Nature. Phone is in service currently. When it gets back I will tell you
Click to expand...
Click to collapse
Any update on your phone? Touchscreen problem solved?

Problem arrive when using 3 finger swipe for screenshoot. there is solution on net about this problem, instead 3 finger swipe just use power buton and vo- for screen shoot

Ho boy, Looks like this is a common issue, I thought it's just me and I had to live with it with this ghost touch, Particularly when dragging the notification screen and clicking on the settings it won't respond had to do multiple times. S/W update, reset nothing helped. Last week one genius broke my screen and I had to spend and replace it. After replacing the screen I'm not noticing this issue anymore.

slavke1976 said:
Problem arrive when using 3 finger swipe for screenshoot. there is solution on net about this problem, instead 3 finger swipe just use power buton and vo- for screen shoot
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As I wrote, tried everything, also disabling screenshot gesture. Problem is hardware, after warranty screen replacement everything is working fine.
At first also had problem with dragging down notifications bar, screen was not responding. Then I turn on touch location in developer options and saw that there is ghost touch in that part. Day after Day it became more disturbing to the point I could not use the Phone.
You can buy whole screen on Aliexpress and change it by yourself if You dont have warranty.

I hope Xiaomi fixes this for those affected. The Redmi 5 Plus had widespread problems with the touchscreen which is why I bought the Mi9T Pro. Not had this myself but I'll be fuming if it ever happens to my Mi9T Pro.
I've still got the Redmi 5 Plus and it's been pretty horrific - the issues started whilst it was in the warranty period and then continued/worsened from there on out. I could kick myself for not getting it serviced in-warranty. Xiaomi essentially sold a lot of people faulty devices; many complain of ghost touching / non-responsive behaviour over on the R5P XDA sub-forum like it's a ROM bug.

I'm also facing this issue of phantom touch or ghost touch.
It's really annoying. I guess screen replacement is the only solution as I've tried almost all options mentioned in various internet sources.
Xiaomi sucks..!

green screen flickering problem at low brightness

Hey, I purchased a used AU Xperia XZ3 yesterday, I've been only using it for a day when the screen starts to flicker in green bright, but only in low brightness. I noticed it first in the always on display, and also during powering off the phone, which gave me a CRT like effect. I came to a conclusion that the phone is flickering green only in low brightness level. I may not know what it's been through because it is a used phone, but I've read threads about OLED phones, and saying it is a software related problem. I hope it is software related, so I don't have to do a screen replacement or stuff. I've tried resetting it and it didn't work. I haven't tried clearing the cache, because I don't know how to boot it into recovery mode. It happens suddenly when it's charging. I'm wondering does anyone have had the same problem or maybe have found a fix for this? I'd be really thankful.

Try this.

Hi, sorry for the late reply. Your solution helps a lot for a couple of weeks, but then I've decided to claim the device to the seller and he replaced it with another unit, since it was still on store warranty, and is working fine until now. Thank you for helping, hope you have a good day.
blackhawk said:
Try this.
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danted7 said:
Hi, sorry for the late reply. Your solution helps a lot for a couple of weeks, but then I've decided to claim the device to the seller and he replaced it with another unit, since it was still on store warranty, and is working fine until now. Thank you for helping, hope you have a good day.
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This is a major issue. Personally I would've returned it too... better safe than $orry!