Database Users

Nexus 4 touchscreen issues

hello people, I lve had my nexus 4 for a while now, never experienced any problems with it on 4.3 neither with 4.4.2, just the overheath thing when browsing websites and such, but recently ive been getting this unresponsive touch in the middle that's not letting me send messages or organize the apps on my main page, I'll explain a little below.
When I slide my finger from top to bottom, just in the middle of the screen my touch seem to go slower and then it like makes a jump and won't recognize the touch in one part, that happens all along the middle of the screen is not just a blind spot, when I write a message and try to send it with the keyboard open, it won't let me touch the "send" bottom I have to minimize the keyboard to be able to send it because the bottom is just in the area where my touchscreen is not working correctly.
I downloaded multi touch tester to verify my touches and I found out that if I make a touch in the middle where I have my issue, the multi touch is recognizing 2 touches at the same time, I'll upload the picture to show how is it recognizing my touches in that specific area.
I'm actually using stock nexus 4 with stock KitKat 4.4.2, I haven't root or anything ever, is the first time I have issues with this phone in the touchscreen, I've also been experiencing some touchscreen freeze where I can't touch anything because it won't work and I have to lock screen and unlock it again for it to start working again.
what I have already done?
I have restart my.phone a couple of time and won't work
i have factory reset it and won't work
I have full charge it with USB and laptop and won't work
and that's about it, I'm sure is a software issues because my phone hasn't drop or anything it just started random and sometimes the phone start to work correctly with no issues but most of the time its not working properly and is frustrating.
PD: sorry for my bad English, not native speaker.
well is not letting me post pictures cus I'm new.

Facing same problem
Aegiz said:
hello people, I lve had my nexus 4 for a while now, never experienced any problems with it on 4.3 neither with 4.4.2, just the overheath thing when browsing websites and such, but recently ive been getting this unresponsive touch in the middle that's not letting me send messages or organize the apps on my main page, I'll explain a little below.
When I slide my finger from top to bottom, just in the middle of the screen my touch seem to go slower and then it like makes a jump and won't recognize the touch in one part, that happens all along the middle of the screen is not just a blind spot, when I write a message and try to send it with the keyboard open, it won't let me touch the "send" bottom I have to minimize the keyboard to be able to send it because the bottom is just in the area where my touchscreen is not working correctly.
I downloaded multi touch tester to verify my touches and I found out that if I make a touch in the middle where I have my issue, the multi touch is recognizing 2 touches at the same time, I'll upload the picture to show how is it recognizing my touches in that specific area.
I'm actually using stock nexus 4 with stock KitKat 4.4.2, I haven't root or anything ever, is the first time I have issues with this phone in the touchscreen, I've also been experiencing some touchscreen freeze where I can't touch anything because it won't work and I have to lock screen and unlock it again for it to start working again.
what I have already done?
I have restart my.phone a couple of time and won't work
i have factory reset it and won't work
I have full charge it with USB and laptop and won't work
and that's about it, I'm sure is a software issues because my phone hasn't drop or anything it just started random and sometimes the phone start to work correctly with no issues but most of the time its not working properly and is frustrating.
PD: sorry for my bad English, not native speaker.
well is not letting me post pictures cus I'm new.
Click to expand...
Click to collapse
I am facing the same problem. You got any fix for this? Please help....

If you've already did a factory reset I doubt it's a software issue. However you can use one of the guides here explaining how to flash a clean stock factory image. This is the last solution that will eliminate any software sided failure.
Sent from my Nexus 4 using XDA Free mobile app

I am also facing the exact same problem for the past two days, My phone is in perfect condition, not dropped or anything like that.
I think I did some google play updates which where pending for long time.... Do not know what is causing this.
Anyway have started to uninstall the app updates manually, lets see.

A flashing will rule out all software issues. Check whether the touchscreen is working. Enable developer options, then select "Show pointer touches" and the other one just below it (too lazy to check up and tell you what it is; pardon me )
If you're getting normal touch response over the entire screen, then you're facing a software issue. Anything else implies a hardware issue; this may or may not fix itself (somehow; gremlins.)
In either case, let us know what happens. Cheers!

i am having exact same issue ...pls post if anyone has a fix

cymonpereira said:
i am having exact same issue ...pls post if anyone has a fix
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Click to collapse
Oops, thanked by mistake.
Anyway, follow my instructions in the last post.

Having the same issue & dii what you asked
kittuboy said:
A flashing will rule out all software issues. Check whether the touchscreen is working. Enable developer options, then select "Show pointer touches" and the other one just below it (too lazy to check up and tell you what it is; pardon me )
If you're getting normal touch response over the entire screen, then you're facing a software issue. Anything else implies a hardware issue; this may or may not fix itself (somehow; gremlins.)
In either case, let us know what happens. Cheers!
Click to expand...
Click to collapse
I'm having the exact same issue & tried what you just said. Unfortunately, I'm not getting touch response in one center row of the screen, for that entire row, no resppnse at all.
Is this the problem with touch screen?

shanilsoni said:
I'm having the exact same issue & tried what you just said. Unfortunately, I'm not getting touch response in one center row of the screen, for that entire row, no resppnse at all.
Is this the problem with touch screen?
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Click to collapse
Say goodbye to that display. I have to get my display replaced too (clumsy fingers grumblegrumble) and the LG guys say the display unit costs 3750 rupees to replace... Get it done ASAP.

Greetings!
If it is a software issue try re-flashing the stock factory image might as well work
-nexus⁴

LG G2 touch screen issue. LS-980

phone was working fine but from last two week the screen starts moving automatically, Wi-Fi turns on automatically at any time. the install button of Google play doesn't work (seems like touch issue) but when i touch the same spot with camera application, it works fine. i am on stock ROM (4.4.2, kernel 3.4.0, KOT49l ) and tried resetting the phone multiple times but facing the same issue.
please help me resolving this issue.
regards.

Just flash the firmware again !!

-iNCEPTiON- said:
Just flash the firmware again !!
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Click to collapse
These are not software problems (dead touchscreens spots), your knock on will not working. It's hardware issue, I think you need sending it back to LG

bluesky2307 said:
These are not software problems (dead touchscreens spots), your knock on will not working. It's hardware issue, I think you need sending it back to LG
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You are just scaring ppl .. You said that my phone has probblem too .. So just dont scare ppl .. and try to help them..
i had this kind of issue with my other phone, I just downgraded to Jelly Bean and it worked fine ... and did the touch drivers update from the hidden menu 3845*#802# ...

i think you have a dead section along the top of your screen, about half an inch down. Its been fairly common. Its not real noticeable at first , bc that area of the screen isnt used often, but its EXACTLY where the play store install button is, and your knock on will no longer work. you need a new screen. or flip it to landscape whenever (seldomly) you need that area of screen. you can test it by getting LCD tester from the playstore , or by using quickmemo to draw on your screen.

findinghomer said:
i think you have a dead section along the top of your screen, about half an inch down. Its been fairly common. Its not real noticeable at first bc that area of the screen isnt used often, but its EXACTLY where the play store install button is, and your knock on will no longer work. you need a new screen. or flip it to landscape whenever (seldomly) you need that area of screen. you can test it by getting LCD tester from the playstore , or by using quickmemo to draw on your screen.
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This happened to me exactly, about a month back. It seems to be right across where the 2nd from the top messages are. You can download YAMTT https://play.google.com/store/apps/details?id=com.rn.yamtt&hl=en
I use the PAINT option and move my fingers around the top. It was a solid strip out near the top. Knock On will no longer work, but Knockoff will.

findinghomer said:
i think you have a dead section along the top of your screen, about half an inch down. Its been fairly common. Its not real noticeable at first , bc that area of the screen isnt used often, but its EXACTLY where the play store install button is, and your knock on will no longer work. you need a new screen. or flip it to landscape whenever (seldomly) you need that area of screen. you can test it by getting LCD tester from the playstore , or by using quickmemo to draw on your screen.
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Click to collapse
when i touch the same spot with camera application, it works fine.

cheekugr8 said:
when i touch the same spot with camera application, it works fine.
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Click to collapse
that could be because the camera button has more "active area" meaning, it will still work if you tap near but not exactly in the same location. the install button on the play store is very very precise. if your knock on does work, then its probably just software. but if your knock on does not work, i recommend testing the hardware with quick memo.... draw lines all the way up and down your screen slowly, and see if there is a break in that area. if its not the screen, unroot, and go all the way back to stock

i don't know how but it has started working automatically form last 10 minutes and google play button is now accessible.
i hope it wont give that error again.
thanks for all good suggestions.

cheekugr8 said:
i don't know how but it has started working automatically form last 10 minutes and google play button is now accessible.
i hope it wont give that error again.
thanks for all good suggestions.
Click to expand...
Click to collapse
In developer options. Tick Show Touches option. you touch any area on touch screen and check dead zone or using Quick memo

[Q] Screen problems after flash

Hey all. My G2 was hard bricked to a point where it didn't even turn on, but with aftabalam8c2's help I could get it to a state where I could flash the phone. I flashed it with a 10b tot image, but after flashing I instantly noticed that the screen has many problems: sometimes it doesn't respond and there are random ghost touches all the time, even when I don't touch the screen. I double checked all connections, made a factory reset, flashed a 20h kdz image and updated touch screen software, but nothing helped.
A week before the brick, I had changed the screen, but everything was working perfectly until the bricking.
I am quite desperate, because the phone is completely unusable right now and I don't know what else to do.
You can see a video of the screen problems here.
Update: I noticed that when I put pressure on a specific point on the left bottom corner of the screen, the screen works normally. Might this hint that the screen is faulty?

Bump. Any help or tips are welcome.

I had ghost touches right after I bought my G2. I tried everything, change rom, kernel, firmware, flash via kdz, everything. I bricked my phone trying to fix my problem and I send it to LG (warranty) . They replace my motherboard and send phone to me. After I turn on g2 problem was back after 20 mins, so I send it again and then they replace my all screen too.
Since then (3 months ago) everything is perfect so I guess you should fix your screen/digitizer.

Thank you for the tip. I was already thinking it might be the screen, although it worked perfectly before I bricked the phone. Sadly I don't have a replacement screen at hand, but I sent a message to the screen seller, asking for a replacement. Now I just have to wait and see.
Interesting is that my phone was off for a few days and now, after turning it back on, the ghosting is almost gone, but some spots on the screen are unresponsive or oversensitive.
Edit: I made a touch test and found out that there are two large dead zones on the screen. I guess the problem really is in the screen then.

Funny thing is this that I haven't had any dead zone just ghost touches
Sent from my LG-D802 using XDA Free mobile app

Touchscreen issues, touches are wrong, working erronously.

Hey everyone,
I have an LG G2 D802T model, and the touchscreen is malfunctioning after the Lollipop update. I've updated it from LGFlashTool, a KDZ for these models and variants but I've mistakenly selected Europe and Turkish language from the options window that appeared during the flashing progress. I've read at some forums that it should've been South Korea and Korean as the option showed at that window.
The identical issues are :
-When I want to touch the middle of the screen for example, the screen gets and shows it as I'm pressing to bottom of the screen or left side or right side, it just vary.
-Can't get into any section because the screen does not read my fingerprints properly.
-Can't use the phone at all.
So I wonder if that wrong flashing could've caused the problem? I've also had a Samsung brand USB cable and had the process with it (not original LG cable because I did not have it). I've read that wrong cables may cause this problem too, but I've tried to rub the screen with a soft cloth and did not work.
This happened after trying to fix the GPS lock issues by opening the back case, and putting some little papers under some kind of plugs as can be seen on youtube video, but after some restarts everything about touchscreen was fine! Just the GPS was not working properly.
So I've decided to try the Lollipop, maybe it could have a fix for the GPS issues and after flashing the ROM (stock), the screen is kinda dead.
Any helps or ideas will be greatly appreciated!
P.S : I can get into download mode, phone is booting so do I still have a chance?
Thanks in advance.

Touch not working after waking up from stand-by

My I9505 does not respond to touch after waking up from stand-by. My screen was damaged so I replaced it with an original Samsung deep-black screen. When the phone boots up and it first gets into android it works perfectly (touch is working), but when it goes to stand-by after the initial boot and it wakes up again, either by getting a phone call/Whatsapp/etc or by physically pressing the power- or homebutton, the touchscreen doesn't respond to anything. The phone itself works perfectly otherwise, responding to all hardware buttons and running as usual in the background (getting messages, notifications etc.).
The weird thing is: I have the spare S4 from my brother, when I put this new screen on that phone the touch keeps working, and when I put the (cracked but working) screen of that phone on mine it also works. So it seems like the combination of my mainboard with the new screen is somehow not working, but all parts separately work great.
I was initially running CM 11, today I installed CM 13, hoping the issue would be solved with newer software. This fixed nothing though.
I have worked at Teleplan for 3 years, fixing hundreds of I9505's, but I never encountered this before.
Currently the device is running with:
Clockworkmod recovery v6.0.4.7
Android 6.0.1 CM optimizedCM-13.0-20161224-Stable
Kernel: 3.4.113-B—B-PWR-Core-AOSP-v1.6
To be clear: While in recovery mode touch always works, when getting into CM after booting touch works. After the first stand-by touch completely stops working. The new screen itself works perfectly with another mainboard and my own mainboard works perfectly with another screen.
Does anyone have any idea what could be the problem?

Before doing the above:
1. Update your recovery
2. Try stock kernel.
There are a great deal of people that encountered other issues after updating the touch firmware.