yashsingh1/xdaforums huggingface dataset:
[G2 General] AvErNaN:
I think I'll add my experience, just to add something to common knowledge.

Yesterday I flashed paranoid android (root was obtained via towel root and recovery installed through autorec. No problem there, backed up my rooted stock rom). My attempts:

1) flashed pa 4.6 beta 5 20141023 (obtained through pa website), followed by pa mini modular gapps. Booted all right, but no signal, so I restored my backup. Stock rom still booting all right.

2) flashed again 4.6 beta 5, followed by same gapps and stock kk baseband, as written in the official pa topic for lgg2. Still no signal, still no problem going back to my backup.

3) flashed 4.6 beta 6 obtained from the xda topic, followed by same gapps and same baseband as (2), during reboot the LG logo goes crazy with colours and after some time it finally boots up, but I have black lines on the right side of screen. 4 line, two thinner and two larger ones. They persisted in recovery and stock rom after restoring my backup.

Since then I tried running the app linked by op: during first run I got rid of one of the thin lines, second run may have made one of the large ones thinner (not 100% sure). I'm still running it for the third time.

As for heating I'm not sure because I wasn't really checking, but some time passed between subsequent flashing.

All no signal issues where paired with 'unknown' under IMEI, but restoring the backup (which included efs partition) brought my imei back all the times.

Model is d802, now I'm going to check the manufacturing date. (It's end of october 2013)

edit. Run the app another couple times. I still have 3 lines, but now they are definitely narrower. Between two runs seemed to me that one of the lines splitted (maybe central row of pixel recovered?) and the next run, one of the two disappeared. I am definitely going to keep running it.
[G2 General] Radra:
Thanks for your answer but I don't think so because I had it in recovery too and also I flashed another room.

Today the screen seems to be working fine again.
[G2 General] khaytsus:
Did you look at the video posted? Was it more like that (bouncing around) or spurious static and glitching?

But yeah, happening in recovery... Certainly sounds more like hardware unless by chance the recovery and ROM were using the same kernel.
[G2 General] Radra:
I'll use as much as english I know, sorry if you don't understand me.

Yes, it is like that video but not that "crazy"and actually, it is from middle to bottom, not in the top.

Today and yesterday the screen works well, it appears 2 or 3 times but not the whole day. :D btw I'm using OptimusG3 1.4.1 and Dorimanx 8.9 Kernel
[G2 General] Jonous:
Same journey as you, installed latest PA beta, lost IMEI, no call service so restored a backup of CloudyG3 2.0. That was last night. I don't recall seeing a black line untill 10min ago when i played a game for 5-10m and then got back to desktop. Maybe it was there before, though i tend to notice such things. Anyway running the fix app, let's see what it does. Amazes me it doesn't bother me so much, but had it been a new phone like many of you, i think it would very much. Be strong, hang in there :D
[G2 General] drivenby:
I don't mean to spread misinformation but I've seen a LOT of people saying they were using PA and then they got the black lines.

Again this is purely anecdotal, I know that someone is keeping a survey but could you share with us the latest results?
[G2 General] AvErNaN:
Okay, very strange thing happened today.

I decided to flash PA again, last version (beta6). I was quite careful in letting the phone rest and cool down between operations, but I had the same problem with LG logo going crazy. Just this time the phone stuck and refused to boot system, so I entered recovery and flash again. This time the phone booted normally, but when I got to the desktop I discovered that now I only have 2 black lines, instead of the 3/4 I had before.

This puzzled me quite a bit.
[G2 General] Al3xxxinho:
What if the lines are triggered after a firmware flash. Something like a "knox flag" on samsung devices ;)

Hardware problems do not disappear over night.
[G2 General] undeadking:
I got my VS980 in June for my b-day and within a month I got the lines on 3 phones!!! IOroot and autorec method used- 2 of them happened with Beanstalk, and one with C-Rom7.1- after flashing [MENTION=5232783]dr87[/MENTION] custom TWRP I have never had a heat issue since...
[G2 General] Formhault:
No... No...
[G2 General] Azurael:
I don't think it was heat related for me. I've been running Slim with various kernels for months and crazy thermal limits... But yesterday, I clean installed the 4.4-based CM port to mess around with that, and at one point when rebooting it, the point when it was supposed to switch from the LG bootloader screen to the ROM one, it instead showed a crazy rapidly fading ghost inversion of the LG logo with grey screen corners. I've seen the same thing on my Nexus 4s on a few occasions - it always scares the hell out of me and the backlight goes crazy flickery for 1/2 hour or so afterwards. I rebooted it as quickly as the power button woula allow at that point but in the G2, the result was two black lines on the right hand side although one of them has come back to life overnight.

I guess it's probably not related to my changing ROMs... But it seems LG have issues with occasionally driving the panel out of range when bringing up the graphics drivers and this has somehow caused permanent damage. At least that's my best guess having watched it happen. Anyway, restoring to stock now. I hope the barstewards repair my G2 because I really don't want a G3.

I seem to recall the Nexus 4 actually having a related screen death issue. What about the LGOG and Nexus 5? Is it a Qualcomm bug or an LG one? We should probably get some cross-device dialogue going on here...
[G2 General] iamterence:
I have an LGOG (Sprint, if it matters), and I have never experienced any kind of screen issues of any sort, nor do I recall any being reported. On Nexus 4-based ROMs (Labeled "gee"), colors are a bit washed out compared to stock LG-sourced ROMs, and sometimes display goes completely on the fritz if you flash an incompatible source-based kernel, but a reflash of the correct kernel fixes that.
[G2 General] Azurael:
Erm, okay. Not so permanent in my case. Now I've been using the phone for a couple of hours, it's fixed itself! I think the very quick reboot when I saw the odd screen artifact may have been key? I'll keep this thread updated if it comes back.

Edit: It was quite gradual. First, I noticed the black line had started to become grey against a white background, then it gradually came back to life. The colour in that line was out to start with, but now it's blended back into the rest of the screen perfectly over a period of 1/2 hour or so.
[G2 General] willywacken:
I would like to add my problem too. By flashing pa from 4th November, I obviously damaged my screen. But the symptoms don't match anything I found. Roughly 15% of the screen are black on the right side. Additionaly, the screen is washed out when showing a lot of dark colors. AND additionally, i have a few vertical black lines.

Using a pixel repair APP, the washing disappears, some of the lines too.but the big black area always stays. Screenshots don't show any of these problems. I tried several tools and Roms now, also a panel switcher APP (which would not work)... Any ideas?

:(
[G2 General] MBurns2:
i know that it could occur even on stock roms and the cause is unknown, but why the majority of people has this problem after flash PA ?

Maybe PA implements something that other roms haven't ?

Note that i'm only asking and i'm not criticizing anyone.
[G2 General] jonnier:
PA for the G2 is currently beta only, not a recommended install unless you're willing to test and risk an issue. I also believe that in its beta state you have to flash the correct rom for your panel type. I may be wrong but from reading the thread in g2 original development this is what I surmise. If you don't understand what beta means or are too impatient to wait, maybe flashing roms isn't for you.
[G2 General] MBurns2:
The last part is really fun because i read a lot before flashing something.

in every case in Pa thread on first page no one speaks about panel.

I have jdi, one month ago i flashed PA without any problem but maybe i was lucky.
[G2 General] ErnestoD:
Are U shure that it also occurs on stock roms?. I ask becouse I have my G2 and Im looking this thread daily to see how it goes and Im really worried about this issue. I never hear of anyone with these black lines on stock rom. My G2 is only rooted, I didnt even flash recovery or rom and I dont want to do it. This is my 4th Lg and I learned to not touch them, I had several problems with other LG devices before. Lg is not samsung, damm, how I miss Odin, is the best and easier thing to flash .
[G2 General] MBurns2:
read the first post, unfortunately some people had this problem even on stock.

i come from Samsung and modding lg g2 isn't difficult, the problem is not the modding process, there aren't any explanation why it occurs. So you must be lucky.
[G2 General] Jonous:
Aaaand now it's gone. Just realised. Until this morning it was there. Now that i checked it's gone! There is hope guys!
[G2 General] MBurns2:
so that app really works.. this problem is out of logic
[G2 General] RenderBroken:
I had a friend that had this issue and use the Dead Pixel app to fix it. He said it did seem to come back eventually.

I think the issue is random. But I also believe that the issue happens when you flash a rom. To explain further, I believe that it happens because of different voltages being used. I do not have any data to back this up but it is a gut feeling. It is still random but I believe that flashing certain roms raises the possibility for the issue to occur. Maybe it is the device tree that PA is using for the G2. I dont know.
[G2 General] MBurns2:
So if it is only an overheating problem we have the solution: you have to flash only when the phone is cool (my phone is cool even after 1 hour on 3g navigation..).

But if the problem is the voltage we cannot doing nothing.

it would be beautiful to find the cause..

"Maybe it is the device tree that PA is using for the G2."= this point is interesting, sorry but i don't know anything about the device tree. Other roms use something different ?
[G2 General] RenderBroken:
The device tree is why you cannot flash my AOSP kernel on a CM rom. They use a different device tree. I believe that PA that We have uses a different DT from CM and AOSP. Just a guess. The device tree controls many things, one of them being voltages for sensors or subsystems.
[G2 General] iamterence:
For what its worth, I've been flashing ROMs willy-nilly on this device post-lines with no additional damage being dealt, seemingly. It was only when I re-flashed the LS980 PA test build when my screen went funky at boot and gave me more, thicker lines. I obviously can't say what does and does not give lines because I'm already damaged, but that test build for sure should be kept away from.
[G2 General] Compass Linux:
Only one.

Restore to stock and send it in if you're still under warranty. If you're not under warranty, see how much it will cost to repair and decide if it's worth doing.

The black lines are permanent damage, and you also have a black area which I don't know if it's related to the black lines, but in the near future your screen could get worse. I do remember I had an increase in the number of black lines over time before the repair (no black lines since then, but very little flashing happening too).

Compass.
[G2 General] iamterence:
Also, I've also decided that instead of getting my device repaired, I'm just gonna buy an HTC One M7 I've found for a similar price, just a few bucks more than the cost of repair. Why fix what could potentially break again in the futute on random, when I could just get a completely new device?
[G2 General] Compass Linux:
That's really handy. I'll add it to the OP.

Compass.
[G2 General] Compass Linux:
I got my display/screen replaced under warranty. No more black lines since, but I also haven't flashed anything but CloudyStock, and now TWRP has thermal protection too (well, on their web page it says "temperature support").

Compass.
[G2 General] iamterence:
No warranty to fall back on, as I've bought this device off of Craigslist ? Did you get it replaced off of your carrier's warranty, or LG's?
[G2 General] willywacken:
Well, I have been running a pixel repair app for a few times, the black lines are definetily not permanent, most are gone,only 10 left. Just this black area won't change a bit.

I still have hope ;)
[G2 General] MBurns2:
which app are u using ?
[G2 General] Formhault:
Lol.

They are permanent. If you are lucky to be able to fix some lines, chances are they will eventually return. Or some lines will go away but not all...
[G2 General] willywacken:
[MENTION=4238730]MBurns2[/MENTION] dead pixel detect and repair
[G2 General] Compass Linux:
I used the 12 month warranty LG has to give, as is the law where I live (Brazil).

Compass.
[G2 General] iamterence:
Appreciate it. I think what I'm gonna do is still get the M7 and then send my G2 back for repairs, since it actually still falls under warranty as well (Apparently my unit was made in April 2014). Plus the M7 is supposed to be getting am official Lollipop update on Friday. Definitely can't beat that :D
[G2 General] willywacken:
I just contacted LG service and described the problem, now I´ll wait and see.
[G2 General] Jonous:
I don't know if it was the app, cause i didn't see any change after 2-3hrs using it the first day. Didn't use it again. It happened out of the blue, at some point when i opened instagram and saw it starting to fade and couldn't believe my eyes.

Buuut now it's back :(.. I was in cwm wiping/flashing miui rom when i saw some graphical glitches and there it was again. So it's like a virus, it's there dormant and needs the right circumstance to be awakened :D I guess that's how it's gonna be, a "now you see me, now you don't" situation. Oh well :D
[G2 General] iamterence:
So, I have 24 hours to decide to either get my screen fixed, or buy an HTC One for around the same price. My question is, has anyone who has had their screen repaired gotten the lines again after flashing AOSP? Or has it been smooth sailing ever since? I kinda don't want to buy another device, but I don't want to fix this thing only to have it happen again it of the blue.

*EDIT*

Never mind. Read back a few pages and seen that people still indeed had black lines even after a new screen replacement. That settles it, I'm just gonna grab the HTC One tomorrow. I really don't feel like playing Russian Roulette with this device again, which is a damn shame.
[G2 General] Azurael:
An update: I've noticed my line comes back in recovery sometimes. But I've not seen it in a booted ROM since it 'fixed' itself. Very odd. If the damage is permanent, I kinda wish I could get it to occur continuously, else it's going to be hard to get the phone fixed.

I've tried pretty hard to cook it. I set my throttling limit to 79 degrees and thrashed the phone with benchmarks for pretty much its whole battery life yesterday, but it hasn't returned. I'm still not convinced it's always heat related. As I said, my phone was stone cold to the touch when it occurred.
[G2 General] MBurns2:
this problem is random and hardware related ..maybe nothing to do with bootloader,heat,kernel source ...
[G2 General] ceyo14:
To the people that replaced the LCD. Have you had any fitment issues. Or were they just as original... I've done a couple and all seem to stick out from the frame. Even one I bought pre-assembled with frame...
[G2 General] Mister_Mini:
I am quite amazed i havent seen any posts regarding a yellow/orange spot on the screen.

I started with a 16gb d802 wich got a spot on the left of the screen about 1/4 down from the top.

Eventually i dropped it and the entire screen broke.

Luckily i got it replaced for a 32gb d802 by insurance.

My mother in law has a d802 as well at my recommendations and she has the yellowish spot verry visible on the right of the screen about a 1/4 down from the top.

Its about 2cm long stretched down.

Been watching my device carefully now and now im starting to see the yellow tint on this device too. So i know 3 d802's all getting the same thing.

On this 32gb model its not noticable enough to capture it on a picture but on the device of my mother in law it is, ill try to make a pic monday when i see her.
[G2 General] AvErNaN:
Ok, I quick update of my situation.

Since the problem already occurred (down to two lines of the original four) and the rom is fully functional, I decided to stay on pa (4.6 beta 6 of November 4th.).

Point is that I updated Su binaries and the phone asked to be rebooted. During the process the same strange thing as before happened at lg logo during boot, leading to almost black screen. I shut the phone down by pressing power button and waited some minute. Cold boot went on without any problem, but on the desktop 4 lines where awaiting. In the end two faded away, leaving me with two remaining.

A few days later my phone autonomously rebooted and showed the same problem. I powered it off and waited 10 minutes, but the fading at lg logo happened again (so I suppose it isn't due to temperature). In the end, after some time that the screen was almost black, I single pressed the power button and discovered the phone had finished boot. Again four lines, but again within 12 hours half have disappeared.

So now I avoid rebooting :D but I'm getting annoyed of this, I really want to install xposed.

PS. Anyone who had this problem with pa was also trying to flash kitkat baseband as instructed in the first post of pa topic?
[G2 General] mannequin:
yes, i think this is the "bigger" issue with this phone and all devices have it in more or less obvious form. it definitely develops with time if you didn't have it from the very beginning and related to the spaces where the phone gets hot the most causing the screen adhesive to discolor. the yellow spot(s) becomes very pronounced during heavy operations when the phone is warming up and goes away when the device cools down or if it's more serious they stay during normal use.

my phone just developed it after a year of use, my friend's phone had it about half a year in.
[G2 General] Mister_Mini:
That is what my mother in law has.

Always visible and if the device gets warmer it gets even worse.

Mine only shows when my phone is warm but i geuss itll develop further.

Tomorow i can take a pic of the device of my mother in law.
[G2 General] Jonous:
I think my issue appeared when I flashed the aosp baseband.
[G2 General] willywacken:
I sent two pics of the damaged screen to LG service, they´ll do the replacement on warranty :good:
[G2 General] 30br:
I have a g2 that just had a screen issue after installing TWRP with autorec. The damage was not permanent. It's almost as if the screen was burned with a white stripe going down the middle, but it completely faded over the course of about 8 hours. There are still screen issues in recovery and during boot, that slowly fade away once in the OS. Here is the story from another post I made. I would love to know how to fix the issue in boot and recovery screens.

http://xdaforums.com/lg-g2/help/white-lines-fixed-exist-twrp-t2954567
[G2 General] wulsic:
[MENTION=5479559]30br[/MENTION] white lines seems to me like you are having a recovery which isn't meant for your display (jdi/lgd) try dr87 twrp recovery, I hope I spelled his name good. The white lines issue isn't permanent it's only display related cause old recovery/kernels didn't had the jdi/lgd display detection but now almost every rom has it and twrp from dr87.

So for all users here,

White lines=temporary lines because of recovery/kernel which is meant for other display, fix is flash newer recovery/kernels which includes auto display detection.

Black lines = permanent lines/ in some cases fixable with app to remove stuck pixels.

Maybe they aren't permanent lines but we don't know the real cause/real fix for it yet.
[G2 General] Formhault:
He only had one line. Which went away ON ITS OWN. :silly:

Which sounds like a different kind of display issue this damn phone has. This is new...

---------- Post added at 08:08 PM ---------- Previous post was at 08:06 PM ----------

Problem is... I can't get my phone to be that hot! Maybe with stock ROM and kernel and all that it can get very hot. But with Pardus ROM or CloudyG3 and DorimanX kernel or AOSP ROMs my phone never went above 75 or so. Not even close to 70 most of the time...
[G2 General] 30br:
Sorry, maybe i wasnt clear enough. Lines isnt the best way to describe it. More like white stripes. And in twrp the stripes are blue.

This is exactly what it looks like:

https://www.youtube.com/watch?v=YzqgyETJyY0
[G2 General] Mister_Mini:
Hereby a pic of the damage i spoke about a couple of posts back.

This whas with a cold device, when it gets warmer it gets even worse.

Im also starting to see it at the same place on my own device and my previous d802 had it on the left.

Sent from my LG-D802
[G2 General] mannequin:
did anybody try to get LG reaction to those yellow spots?
[G2 General] Mister_Mini:
I have not.

My previous device got destroyed before i could claim warranty.

My mother in law(device on the picture) hasnt asked.

Not sure wjat she thinks about it, her device also has insurance so it can easily be fixed but she doesnt send it out.

For now on this device i have its only noticable when my device gets hot. When its cold i need to look verry closely and my gf doesnt even see it so ill wait a bit more to become more visible before i start waranty.
[G2 General] Fir3blade:
Oh man, just discovered this thread with all the screen problems on over 170 sites.

As I own a G2 since a year now, flashed lots of kernels, roms and mods I guess I had been lucky until now by still having a flawless screen.
[G2 General] new_disaster:
I got once blacklines yesterday and fixed at service centre. Now i'm afraid flashing any custom rom. My warranty is over...

My hand is so itchy not flashing new roms... [emoji24]

Sent from my LG-D802
[G2 General] MBurns2:
if possible: which recovery did you have ? which rom did you flashed before the damage ? thanks
[G2 General] new_disaster:
I got the blacklines when i'm flashed pa experimental build by houston. Its my fault because it's experimental build, i shouldnt flash it.

But i've flashed almost all roms in xda, never get any problem.

I use twrp 2.8.0.1 with thermal control by dr87 when the blacklines come.

I guess the problem is with the rom, its experimental. Not the recovery.

Sent from my LG-D802
[G2 General] Jonous:
Mine was gone and once I flashed in cwm there it was again. There is a chance that it will appear again if you try flashing. For me it's just one line far away on the side of the screen so it doesn't bother me. But this itching is soooo strong :D
[G2 General] raphael.lira:
I have now 9 black lines on the right side of my screen, that happened after flashing paranoid android...... The strange thing is that my lines change colors, from black to grey depending on the color of the screen. I tried some screen repair apps but none of them worked. Before that I flashed TWRP, a number of different kernels and cloudy, no problem until paranoid.
[G2 General] new_disaster:
You have to replace your screen, just like mine. Go to LG service center
[G2 General] raphael.lira:
Yeah, I know that, but no warranty makes things hard hahahhah. I prefer to live with 9 dead lines than to pay a fortune just to replace the screen.

But thanks!
[G2 General] jal3223:
They are pretty cheap on eBay now. Under 70 bucks for the digitizer and frame.