yashsingh1/xdaforums huggingface dataset:
[G2 Q&A, Help & Troubleshooting] jonatutu:
I think have a liitle bit of both problems. Its all random sometimes it happen sometimes it dont, I have no way to repeat the problem at will I have try many times. I am on stock no root with developer settings enable option checked are 'shows touches' and 'show touch data'

I only get the problem when I am using the browser ( happen on both stock and chrome )on my phone and with developer settings unchecked (so weird) I thought of checking them and see if it register my touches during the problem but every time I enable them the problem don't occur.

Everything works fine in the beginning, scrolling is smooth, zooming are working properly, pressing the [+] to change to other tabs work fine too. Suddenly the touchscreen wont response, not registering all the touches, I can still scroll but its not smooth, like its been delayed tried scrolling harder as I am frustrated, zooming went weird, 'accidental' press on links will happen. Everything dont work very well now, [+] tab option wont work, even the top notification bar cant be bring down only the Nav buttons are working normally. I have no idea how to fix the problem, but when you know only the Nav buttons are working you will just press home to exit that irritating app. Sometimes it will 'cure' the problem with first try.

But I think I read somewhere, when after long use, phone gets hot, the screen problem occur. It matches my situation to a certain extent, the phone is very hot when it happen, but then again sometimes it don't and with Enabled developer settings never once did the problem occur!!!! \

Hope someone with the same situation can tell me whats wrong. Either software or hardware issue.
[G2 Q&A, Help & Troubleshooting] DerNoisy:
LG Wake UP? !

okay, its not so hard to guess that it is software issue cuz it appers sometime... since i bought phone it issue had to come just 3 times, first it was USB Plugged, second it was a browser scrolling and third on homescreen just, i have to admit that 2nd time there was many tasks opened. third time Ram status was a t best usage, i`m not a ROM programmer but i can say that problem come from actually a currect android script (i mean that touchscreen isn`t anything if there is not correct script for it), idk if CHANGE ROM helps but i think better to change ROM to G Flex variant (port here for all variants).

OK LG, when phone is a one of flangships u should look better on it...

P.S i think any of developer can fix that problem? idk xD but i`d be glad if someone does cuz those LG is ignoring flangships
[G2 Q&A, Help & Troubleshooting] dps33:
For me after a week or two , Touch response freezes. Can't do anything. Have to do hard restart.
[G2 Q&A, Help & Troubleshooting] Dirtymonkeysk8r:
Can anyone help me with this???its litterally only this part of my phone
[G2 Q&A, Help & Troubleshooting] aggelosss5:
i have a very strange probleme an area on the touch screen is dead i cant register any touch sometimes it is being fixed on its own but the most of the time i is not working it is a small linw were usually is the qapps this aread is not responsive at all
[G2 Q&A, Help & Troubleshooting] T_money_third:
This happened to me on my LG g2 stock d801 rom but a reboot used to clear it up. After I started installing custom roms it never happened
[G2 Q&A, Help & Troubleshooting] aggelosss5:
I have a costume rom grievus flex i tryed to install cm but the probleme was again there and know i have again grievus flex and still have the probleme.Do you know if i return it they will change or i have to pay
[G2 Q&A, Help & Troubleshooting] drinu21:
I have an issue were the first touch it get long to respond and once my finger is on the screen other touches with other fingers are fine or scrolling. I have noticed that the CPU temperature effects the touch response.
[G2 Q&A, Help & Troubleshooting] workinhard:
I have a feeling this is a hardware issue. Some phones were just not calibrated properly which explains why some users never see this problem. I know for the affected users, it comes down to usage patterns... users that push their phones playing games and such see this happen often. There was one thread I read, where a user continuously pushed his phone's limits for a couple hours straight never turning the screen off and he did not see this.

Even if it is a software issue, this phone is 6 months old now. Think LG is actually going to fix it? They've already moved on to the G3
[G2 Q&A, Help & Troubleshooting] missiveusa:
Sent for repair

I've had my D801 (T-Mobile) G2 since late September. About three months ago this issue came up for about 20 minutes, then went away after several reboots. Suddenly a few days ago it was back, with a vengeance. Phantom inputs, scrolling, dead touchscreen, the phone was un-useable. I knew it was serious when I got phantom inputs while in TWRP recovery! I did a complete back to stock restore with the updated 80110G kdz file, hoping that would solve the issue. Restore worked without a hitch, but it did not solve the problem. For weeks now there's been a dead spot in the upper right quadrant in portrait view, works in landscape. Also getting the LG screen after boot up saying my touchscreen is damaged, do I want to activate button mode.

I wrote LG, received an RMA within 24 hours. My $700 handset is sitting in a box ready to ship to LG repair facility in Ft. Worth, TX. Download mode shows device as "unrooted". If LG does not stand by their product I will go back to Samsung, HTC, even (dare I say it?!) Apple.

After reading forums and my experience with this problem, I'm convinced this is a hardware issue. The Snapdragon 800 runs very hot under load, well into the high 60* C range, although I don't know if that's the cause of the instability.
[G2 Q&A, Help & Troubleshooting] winwin81:
Any updates after this?

Anyone else learn anything new on this topic?

I have read other consumers mentioning that this issue seems to go away or get better with the KitKat update.

However, I myself am waiting for the Rogers D803 (Canada) update to come online.

While my phone is rooted (to allow more functionality with apps like Greenify, Llama, Trickster MOD (governor control only), I'm generally pretty happy with the LG UI. I'm planning simply us the LG support tool to update to the new OS (given I've not employed any custom ROM's, or significant UI apps like Xposed); I've heard people have been able to apply the update that way without any issues with their root access (and thereby avoid the extra steps of unrooting).

Also interested in hearing if anyone has feedback on whether they like Jinshu's or Xdabebb's camera app for the G2 better and why?

W
[G2 Q&A, Help & Troubleshooting] missiveusa:
Happy customer

I'm very pleased with how LG handled my RMA. I had my phone back in less than ten days. They replaced both the Digitizer and lcd screen. Phone was very responsive on 4.2.2. I upgraded to 4.4 by flashing the KDZ. Phone feels even smoother, battery life is excellent using the Snapdragon battery Guru app. I do miss having root access and custom recovery, so I will probably take the downgrade path back to 80110c. But as far as the screen issue, LG fixed the problem FOC under warranty. My issue was definitely bad hardware, so I don't think the 4.4 update would've helped me. If your G2 has dead touch spots or a crazy screen jumping with phantom inputs, ask LG for an RMA. The repair procedure is clearly outlined on their website.
[G2 Q&A, Help & Troubleshooting] winwin81:
Thanks for the update!

How did you confirm you have dead spots? simply by going to memo and drawing all over the screen to see if there were any gaps?

Nice that LG covered it under warranty -- course they should.
[G2 Q&A, Help & Troubleshooting] winwin81:
The LG G2 International update came out recently (for D802)

Further, D803 (Canadian variant) is also getting the LG/Rogers KK update on March 25!

h t t p : / / communityforums.rogers.com/t5/forums/forumtopicpage/board-id/GeneralCareSupport/thread-id/355

Hopefully these updates have been helping with this issue. I will share my feedback when I get the D803 update next week.

W

(LG G2 Stock ROM Android 4.2.2 - D803 Canadian Rogers)
[G2 Q&A, Help & Troubleshooting] mr_pio:
Hey guys, I think I got it. It seems to me that it is the knock-on technology that is the culprit here!

After 3 weeks of using the device happily, the screen went bonkers, was acting up at least 50% of the time. Resetting etc. didn't help at all, so the next day I managed to turn knock-on off, at least to keep the phone from turning itself on by, well, touching itself (General settings/Gestures)

All wonkiness ceased immediately. The best part is that after a few hours I tried turning the double tap thingy back on, and the screen has been working perfectly the whole day after that, with knock-on active!

Try it, I'm curious how it works with yours. The knock-on technology is rather finicky, e.g. it prevented me from using the phone in an armband case with a plastic window - apparently extremely sensitive to capacity and something can easily go wrong.
[G2 Q&A, Help & Troubleshooting] nimee:
Knock on ~ epic fail!

Exact symptoms as op described plagued my D802 since I bought it. Kit Kat update didn't help. Closing apps didn't help. Restart phone didn't help. Just as I was mentally preparing to exercise the warranty for a HW failure I disabled knock on as last resort - bam! problem gone!

Thanks [MENTION=1054515]mr_pio[/MENTION]!
[G2 Q&A, Help & Troubleshooting] Justinwojo:
So I love my g2.. and I just got the dead spot on screen problem randomly after it charged overnight. Installed kit kat, didn't fix. Tried every possible option, still doesn't work. Dead spot and knock on not working... Seems to me that the issue could possibly be the rear power button. It's perfectly in line with the problem on every one. I've also seen one where a guy had 2 dead spots one being right on the power button and one behind the volume up button.. So seems that the buttons are causing the issues. Doesn't seem so much like a software issue so to speak, but it is possible. Maybe pushing the button in over time has broken something or causes the digitizer to break/malfunction? I know this isn't always the case as I know people have replaced the screen/digitizer and still had the issue, so still a possible software issue. All I know is its a frustrating problem. I bought the phone for the full price and brought it to a pay as you go carrier. So now i'm stuck with an expensive phone that doesn't work that great.. Bummer. Shoulda just got the S4..
[G2 Q&A, Help & Troubleshooting] SebasC:
I had this problem today and fixed the problem by entering the "Service Menu" (google the code) and there is a Touchscreen section which has an option called Touchscreen Firmware Upgrade.. Run it and just wait a bit (give it 2 / 3 minutes) and this should fix the problem of a dead spot because it did for me.

Now a new problem arised after that of the "ghost" touching and what not so there is reason for me to believe that the Touchscreen firmware is f'd up.
[G2 Q&A, Help & Troubleshooting] Demontooth:
The phone has a 1 year manufacturer warranty. Contact LG and they will fix it.
[G2 Q&A, Help & Troubleshooting] tatanico:
pa + full install gapps with recovery configure philz be carrying around after disconnect google opened the chamber and began speaking problems where the navigation bar is distorted upside down by seconds slowly increased distortion and not install other rom will take you under warranty and got a new one now has cm11 and cwm recovery 6.0.4.8cm all perfect. jdi panel and d805 model.
[G2 Q&A, Help & Troubleshooting] nebsif:
Didnt help for me :((

Bought a LG G2 on swappa (from icellphonez1) and it has this issue... what a bummer :(

edit: heres a pic https://drive.google.com/file/d/0Bw6giEIL8l7MQW1iYlYyRm40UDNVQXhzM3RwbFE4ajMtQUtF/edit?usp=sharing
[G2 Q&A, Help & Troubleshooting] lazer77:
Randomly got dead spots on my G2 the other day. I returned it to stock today (gonna get it replaced).

Below, you can see pretty much the entire top half is a dead spot.

Also, Knock-on does not work at all any more. Kind of interesting tho that upon returning to stock, I updated to the recent update from AT&T which is for knock code and whatever else (20u). I set the lockscreen to use knock code and the pattern worked.. :confused:

The Service Menu code to Update Touch Firmware also did nothing for me.

Just my experience. :cyclops:
[G2 Q&A, Help & Troubleshooting] ford12acing:
i have the issue too, never buying an lg phone again. EVER
[G2 Q&A, Help & Troubleshooting] nebsif:
wonder if same **** will happen in G3, and yes, back to waiting for a small bezel galaxy (galaxy F please be good)
[G2 Q&A, Help & Troubleshooting] izmenar:
so there are diferent manufacturers for the lcd, how can we see the manufacturer ?
[G2 Q&A, Help & Troubleshooting] Remytech5:
Dead spot on my lg g2

The top have a dead spot now, first it was going crazy scrolling on the top... i have a video but im new and i can post it now on youtube
[G2 Q&A, Help & Troubleshooting] asko19:
GRRRRRRR!!!

This sucks... i have the dead spot too.. :( is there any fix yet ?
[G2 Q&A, Help & Troubleshooting] federer38:
me too did you find any solution?
[G2 Q&A, Help & Troubleshooting] phaeacian:
This is EXACTLY the same area that just went dead on me... makes it hard to pull down the notification panel and touch any UI elements in this spot.
[G2 Q&A, Help & Troubleshooting] Sfkn2:
Time to claim warranty.

http://xdaforums.com/showthread.php?t=2764918
[G2 Q&A, Help & Troubleshooting] lil_jimmy_norton:
So mine just started doing this for the 2nd time. FIrst time screen was replaced and Sprint Tech center. Lasted about 2 months and just stared again today.
[G2 Q&A, Help & Troubleshooting] wizardofwoz:
+1 for the exact same dead spot and knock on problems. questioning if this is actually a hardware issue or a possibly a software issue.

I turned off knock on via settings and the dead spot became more responsive (not 100% but a definite improvement)
[G2 Q&A, Help & Troubleshooting] pema.yozer:
same problem for me as well
[G2 Q&A, Help & Troubleshooting] wizardofwoz:
Ended up RMA'ing my phone. Its over a year old but Lg said they extended the warranty out to 15 months on this phone.

I'll keep everyone posted on if they charge me to fix it. Anyone else find it odd that there appears to be a rash of phones this is happening to right now though?
[G2 Q&A, Help & Troubleshooting] fallengt:
Still no word from LG? If it was software issue, they would fix it by now.
[G2 Q&A, Help & Troubleshooting] Demontooth:
They replaced the screen on mine for free.
[G2 Q&A, Help & Troubleshooting] tegcasper:
Same Dead zone as others knock on doesn't work

Hello, I have the same dead zone as other people have reported on my Verizon LG G2. Also knock off works fine, but knock on doesn't work. turning off knock on and all other gestures then rebooting doesn't fix the issue or help. I really liked this phone until this recently started happening. Any fix yet on this?
[G2 Q&A, Help & Troubleshooting] HeXaLox:
One solution

I'm on vs980 and for anyone who wants knock on back there is only one single solution... and that is to get cloudy's G3 ROM running on your phone..the knock on doesn't work very well but still works..you have to re-calibrate the screen first then turn knock on...it's more responsive then but you must tap more aggressively than before anyways..give a thumbs up if this works for you

Edit: If knock on works on Cloudy's G3 ROM then it must be a kernal/software issue not a hardware issue. Also to add on if you would like to recalibrate the screen go to settings>general>gestures>motion sensor calibration
[G2 Q&A, Help & Troubleshooting] Sfkn2:
So... You're telling me that there is one ROM out there that can remove that dead spot on the screen?

---------- Post added at 09:58 PM ---------- Previous post was at 09:57 PM ----------

Yes, there has been a fix since last year. Scroll back a few pages.
[G2 Q&A, Help & Troubleshooting] HeXaLox:
It doesnt fix the screen issue but it does fix the knock on issue...
[G2 Q&A, Help & Troubleshooting] Sfkn2:
Increasing the sensitivity settings can be changed with the coding rather than having to completely change the ROM, though.
[G2 Q&A, Help & Troubleshooting] HeXaLox:
then someone has to make a new kernal
[G2 Q&A, Help & Troubleshooting] Sfkn2:
I'm not understanding what a kernel has to do with this issue. Can you explain further?
[G2 Q&A, Help & Troubleshooting] Immix:
So I have the same issue of dead spot/band in the upper half, knock on not working, and occasional/rare screen going crazy. I have a D801 and I am using it in India rendering warranty void. Since the GSM phones sold in US/Canada (D800, D801, D803) and the ones sold internationally (D802) share different motherboard and screen (the lcd connector is different), the LG service centers in India were not able to repair my phone. So I got a LCD screen for D801 from US and following happened:

Tuesday: I replaced the LCD myself taking the phone apart using many guides available online. RESULT - All problems solved

Wednesday: All issues were back again on the new LCD.

Wednesday Night: I took my phone apart again and put the old LCD back. RESULT - All problems solved

Friday: All issues are back again on the old LCD.

This means that the issue is not with the LCD but with something else. It could either be the connectors on the board or the motherboard itself (cpu/graphics chip). In either case, I think the entire motherboard will need to be changed. For people who are sending their phones for warranty repair, I think you should make a case for the motherboard to be changed instead of the LCD/digitizer. For people like me who have out of warranty phones, I think we are SOL, since it is very hard to find a NEW G2 motherboard. AS for me I would most likely sell it for parts and buy the new One M8 (with Warranty).
[G2 Q&A, Help & Troubleshooting] Sfkn2:
Mine was also the prox and light sensors. Perhaps it's a bad connection there?
[G2 Q&A, Help & Troubleshooting] HeXaLox:
The kernel is the engine that lays on top of the ROM image and controls everything releated to the ROM and hardware of the phone.... heres what the kernel does in short terms... When software needs the hardware to do anything, it sends a request to the kernel. And when we say anything, we mean anything. From the brightness of the screen, to the volume level, to initiating a call through the radio, even what's drawn on the display is ultimately controlled by the kernel. For example -- when you tap the search button on your phone, you tell the software to open the search application. What happens is that you touched a certain point on the digitizer, which tells the software that you've touched the screen at those coordinates. The software knows that when that particular spot is touched, the search dialog is supposed to open. The kernel is what tells the digitizer to look (or listen, events are "listened" for) for touches, helps figure out where you touched, and tells the system you touched it. In turn, when the system receives a touch event at a specific point from the kernel (through the driver) it knows what to draw on your screen. This is taken from

m.androidcentral.com/android-z-what-kernel
[G2 Q&A, Help & Troubleshooting] Immix:
I completely removed the prox and light sensor but the issue was still there. So at least for me the the sensors were not the cause of the problem. I am currently using the phone as it is and I have noticed that the issue goes away on its own randomly and then comes back after some time automatically. So far I am not able to pinpoint exactly what action of mine triggers the issue to appear and disappear. Seems completely random to me. Well I'll keep trying and report if I find something new.
[G2 Q&A, Help & Troubleshooting] pema.yozer:
i let the battery drain completely till the phone was dead, turned it on a couple of times to drain what ever juice was remaining,

let it sit over night, turnd it on again in morning few time to again drain what was left.

Then finally plugged in the charger, device turns on , i can see no dead spot, no errractic behaviour and knock on and off works perfectly.

lets see how long this trip to wonderland lasts
[G2 Q&A, Help & Troubleshooting] Immix:
I tried this sometime ago. Didn't work for me at all
[G2 Q&A, Help & Troubleshooting] pema.yozer:
after one day.. no erratcic touch issue but knock on not working and dead spot is back
[G2 Q&A, Help & Troubleshooting] wizardofwoz:
Received my phone back already. Everything appears to be working properly. The RMA notes indicated they "replaced touch button" which made me lol. Already flashed back to cloudy G3 and I'm back to loving my phone.

Good luck to everyone else! I'd recommend contacting LG as they repaired mine even though I was beyond the 1 year warrantee and I didn't even send in proof of purchase (bought my VS980 of CL and am using it on T-mobile)
[G2 Q&A, Help & Troubleshooting] Sfkn2:
The warranty is 18 months, I was told.
[G2 Q&A, Help & Troubleshooting] stevejohnson42:
similar issues

We have ones from Verizon - my wife is on her third phone in about 6 months - happened twice to the point could not use. I have not had an issue with mine ; we got them the same week. So far - nothing we tried worked to fix it ; always ended up going back to Verizon and getting them replaced
[G2 Q&A, Help & Troubleshooting] Immix:
About 3 days ago, I flashed a stock KK ROM, and updated the touch firmware. I have been on PA 4.3 Beta7 and hadn't upgraded the touch firmware since updating to the stock KK ROM and Radio. After upgrading the touch firmware, I noticed that the issue (dead band, irratic touchscreen behavior, and knock on not working) was still there. So I flashed PA 4.3 Beta7 back. The issue was still there. But after about an hour or two, I observed that all of these issues were gone. Its been close to three full days since and no issues whatsoever. I will update this thread when/if these issues resurface.
[G2 Q&A, Help & Troubleshooting] fress:
Hi, my screen was broken, after change the display my touch issues was started. Sometimes when i touch menu button then started message app, same with home and app drawer. What can i do with this?

Sorry my english

Odesláno z mého LG-D802 pomocí Tapatalk 2
[G2 Q&A, Help & Troubleshooting] deeproot:
Any updates on this?

I have tried every rom even going back to stock and I have the dead touch still.
[G2 Q&A, Help & Troubleshooting] Immix:
Almost a full week now and no issues yet. I think upgrading the touch firmware did it for me because i had tried all sorts of things earlier including replacing the lcd but none of them helped.
[G2 Q&A, Help & Troubleshooting] pema.yozer:
sadly my dead band has started again.. can you let me kow what is the process for flashing the touch screen firmware
[G2 Q&A, Help & Troubleshooting] Immix:
I was on PA 4.3 Beta7 with stock KK Baseband. Since this ROM did not give me the option to upgrade touch firmware, I did the following:

1. Wipe data and cache followed by formating /system in Recovery. I have PhilZ Touch 6 Recovery.

2. Flashed a stock KK D-801 ROM. I used the one provided by dr87 in this thread (http://xdaforums.com/showthread.php?t=2673736)

3. After booting into Stock KK ROM, I opened up Dialer and typed 3845#*801# (the digits between * and # correspond to your phone model). This brought up a hidden service menu.

4. I don't exactly remember how I got to the upgrade touchscreen firmware option but it should not be too difficult to find this option. Once I found it, I hit Upgrade Touchscreen Firmware.

5. After upgrading the firmware, the issues (dead band, erratic touch screen behavior, and knock on not working) were still there.

6. Since the problem was not resolved immediately, I decided to flash PA 4.3 Beta7 back. After flashing this ROM, I noticed the problem was still there.

7. But after maybe a couple of hours, I noticed that all the problems were gone.

Its been 8 days now and no problems still.