Ghost Touches on Sony Xperia Z2 - Android Q&A, Help & Troubleshooting

I have a sony Xperia z2. Bought it a year ago, everything worked fine for 11 months. One day i was using my phone and suddenly the screen went haywire. On further inquiring i realized it suffers from ghost toughes. I enabled the show touches option to give me the exact idea where the ghost touches appear on screen. There's something strange about it, only 2 ghost touches appear on the top right side of the screen, BUT WHEN I SWITCH OFF MY SCREEN AND SWITCH IT BACK ON THE SCREEN BECOMES RESPONSIVE FOR 5-6 SECONDS. Then ghost touches appear again. I have TRIED everything, formated, restarted, changed screen guard, cleaned the screen, changed the charger, did a software repair procedure suggested by sony. I really really really need help, I'd really appreciate it if someone tells me how to fix this issu. Thank you.

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[Q] Xperia mini pro screen remains black

Hellow everybody! 4 days ago I got the screen I ordered from ebay and I have a big problem! I installed the screen on the phone, and the phone was booting up, the touch screen worked I could sense the lock screen when I touched it but nothing! Also the phone was burning! after noumerous tries , the screen finally worked the next day! But one day after , it had the same problem!Now the screen is black since two days ago! Any help! I tried repairing with pc companion, but the screen still remains black!!
Since you installed it yourself, you maybe made a mistake during install, something wrong got connected or something.
You said, that phone heated up. Some connections could have melted or even some chips.
xperia mini pro
The phone worked for a day before repairing. And it didnt worked for two days berfore repair, after it had worked!!
Does it work now or not?
Yes it works , the touch screen works i can feel it by sliding the lock button.
But it remains black, i heard sound about the battery. so the phone works but the screen remains black.
Seems like connection issue between mainboard and the screen. You mentioned getting warm - could have been too hot for the connections.
Sent from my WT19i using xda premium
No I've trying installing the screen many times , but the heat was coming from a single part of the motherboard , i opened the phoned and touched it! It was burnig hot! Now there is no heat , the phone boots up, i can sense the lock sliding when I move it (vibration) but i cant see anything!!! It worked for day perfect! The first morning , heated for some time , but it work after ten minutes for a whole day with no problem! the next day i went to the cafe of the village and connected to the internet by wi-fi connection, when I left, the problem started again ! And the phone is working , as I mentioned before, but the screen isn't viewing anything!

[Q] My HTC One's touch is acting weird...

So, this thing drives me crazy...I've tried everything I knew and still nothing solved this problem.
I'm using HTC One. About 10 days ago weird things with touch started to happen. It seems that touch is partly unavailable/unresponsible on touch in one or two small areas. It seems to me like theres an empty place on my touch. Visualy is everything fine. Screen is crystal clear and has no damages or scratches. But I can't slide icons without troubles. Somwhere on 1/4 of screen, touch brakes briefly and I need another try to slide the icon. The same thing happens with status bar on the top of screen - I can slide it until that 1/4 part and it stops there and goes back. If I slide it quick with short move, it works fine, just slide alone over problematic area.
Also, few times I had that problem where screen works things on itself will. Makes pictures, or adds filters on Instagram, or, I don't know, just jumps around for few secons. Then, I lock the screen, then unlock it and usually that calm down the screen.
Also weird thing is that, when I want to send message, I can't reach "send" button in first try. I have to drop down writing sheet, than to touch the letters to put it in writing mode again, and then I can click the "send" button. On the same place where it was previously!
At first, I thought that plastic case or PVC protection is the problem, so I took off the protector from the screen. That solved problem for a bit. Then, I put back screen guard, and problem came back. After I totally rejected screen guard, problem is still here. I've tried to reset phone on factory, but that wasn't helpfull...
I forgot to state that I'm using Android 4.2.2 and this started to happen after that version update. I had no problem before.
So, now I'm here, as I don't know what else to do before I take this beauty to service. I just hope that this happens because of software bugs :crying:
Is there anyone who could help me? Have similar problem or know how to fix this?
In the meantime, I'll just hope that 4.3 will fix it themself... :fingers-crossed:

Unresponsive touch screen

Hello mates.
I've got some issue with my desire x touch screen. It is becoming unresponsive.
The whole thing started like 1 month ago. I've noticed that as my phone gets hotter (playing games, using internet) my touchscreen was slowly becoming unresponsive. Firstly I was unable to scroll down my notifications (only the narrow bar at the top was not working) and then it came to a random places of screen, so I couldn't even write sms message. The thing is that it is not unresponsive at all. When I press certain unresponsive area it finally detects the touch. I tried everything, from wiping my screen with a soft tissue through removing battery and sim and sd card to wiping dalvik and cache. I've noticed, that after night the problem was almost gone. And again, after using phone for some time issue occured again. I figured that flashing a new kernel might be a good solution. And it helped and I was happy.
Unfortunatelly, yesterday problem returned. But as you probably suppose - flashing kernel ain't helping. I've also tried other methods mentioned above, but the only thing what helps a bit is leaving the phone unused for like 1 hour or so.
Do u guys have any ideas, what can I do to repair it or to fix it? Any help will be strongly appreciated
ptaq1234 said:
Hello mates.
I've got some issue with my desire x touch screen. It is becoming unresponsive.
The whole thing started like 1 month ago. I've noticed that as my phone gets hotter (playing games, using internet) my touchscreen was slowly becoming unresponsive. Firstly I was unable to scroll down my notifications (only the narrow bar at the top was not working) and then it came to a random places of screen, so I couldn't even write sms message. The thing is that it is not unresponsive at all. When I press certain unresponsive area it finally detects the touch. I tried everything, from wiping my screen with a soft tissue through removing battery and sim and sd card to wiping dalvik and cache. I've noticed, that after night the problem was almost gone. And again, after using phone for some time issue occured again. I figured that flashing a new kernel might be a good solution. And it helped and I was happy.
Unfortunatelly, yesterday problem returned. But as you probably suppose - flashing kernel ain't helping. I've also tried other methods mentioned above, but the only thing what helps a bit is leaving the phone unused for like 1 hour or so.
Do u guys have any ideas, what can I do to repair it or to fix it? Any help will be strongly appreciated
Click to expand...
Click to collapse
I have a similar problem after replacing touch screen. I have found the source of the issue, it could be similar to yours.
My touch screen at the bottom was glued to the LCD in a short line and the adhesive was probably touching part of the LCD cable that goes underneath. I used a hair drier to warm it up and lift off the touch screen. That way there is no bad interaction between the touch screen and the LCD. Haven't had this problem since but my touch screen is unfortunately a bit lose this way. Even now, whenever I push the navigation part of the touch screen too hard, the problem comes back. I will need something to isolate the bottom part of the touch screen from touching the LCD. I will keep you updated if I find a final solution. In the meantime, it could be worth trying it on your phone too.
I think I will just get S-OFF, revert my phone to stock and give it back for warranty repair Anyone of you guys did this? Did 7 vibrations at boot void your warranty?
I'm thinking about warranty repair, cause my bro has the same phone, but full stock, not even rooted. And he got simmilar problem to me, but with less intensivity (it just comes and goes once in a while). Also recently I got this phantom touch problem (after enabling show touch in options I saw my phone is detecting some touches in specific areas) So I think warranty will be the only option :/

[HELP] GS5 Black screen

Hello,
I got a really weird issue with my samsung galaxy s5(SM-G900F). Out of nowhere my screen wont display anything anymore when i booted it this morning.
I did let it fall like 2 months ago and has a little crack but only in the top layer and nothing happened last night to my phone, no water damage either( also since its waterproof).
Even though i cant see anything, its still responsive. I've tested it with Vysor( screen mirroring software). Now the weird thing is that in Vysor first of all the resolution is messed up, and the region of my android seems to be horizontal in the top of my screen, with left being the top and the right side being the bottom. I've tested this by simply touching the screen in my lock screen and seeing where the bubbles would pop up.
[cant post image links apparently because i dont have 10 posts. can i add an attachment somehow?]
Additional information: My phone is rooted since a few days and I had installed xposed framework, didnt boot after that so uninstalled it in recovery mode and that was the end of that, was working fine again. Since then i had already rebooted many times without problems. Also sometimes when i restart i see a thin horizontal line in the top of my screen flickering for about 0.2 sec. Led, buttons and sound are all working fine.
Anyone seen this problem before and what could be the fix? I'd rather keep re-installing the firmware as a last resort as I can still use WhatsApp in my browser(my main communication method) and also not get my screen repaired for €150 untill im sure about the cause.
Thanks in advance.

[ISSUE] Half part of Touch not working Sony Ericsson Xperia Ray

I have an Xperia Ray Running on LX CM13.1.
One day capacitive touch buttons started showing ghost touch continuously. I then restarted and capacitive buttons stopped working.
I then activated onscreen buttons and some days later they started showing ghost touch continuously. I then restarted device and that part of screen also stopped working.
With in a fews days ghot touch spreaded up and finally bottom half part of touchscreen stopped working.
I tried hard formatting and even I flashed stock firmware but didnt fix the issue.
As I know it is a hardware issue, Will I have to replace my entire display?
Display part is working properly but touch is irresponsive.
Thanks
It seems like the Ray has the display stuck to the glass/digitizer with LOCA adhesive, so yeah, you need to replace the complete assembly, unless you find some service center where... Nah it's not worth the hastle lol.
I replaced my Mini Pro's display a bunch of times. It's sad to see a perfectly working LCD display go just because of a broken glass/digitizer.

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