yashsingh1/xdaforums huggingface dataset:
[G2 General] vrda08:
Simple for me.

Its not rom, i think its kernel or bootloader issue, one of these has bad temperature controll and device has bigger heat impact than normal on some process.

Thats first problem, second and bigger is poor LG glue which stick connectors on display and what is main reason for black lines. Glue is sensitive on temperature and with more and more flashing,backup..etc. Glue abuse after some time after number of flashing or any process what related with heat..thats the point when lines appears on display..

So for us without lines, maybe our device stared lose glue quality on display connector, but we didn't hit that point when glue unstick some connector pins and lines appears..

Thats my opinion for now.. Sorry on bad english..
[G2 General] DREWHAMM974:
The Nexus 5. I have a M8, Note 3, G2, and Nexus 5 and my Nexus gets the most use. Also [MENTION=228354]ergo[/MENTION]90 there is no issue with the N5 and the screen. There was one account I saw of evenly spaced transparent horizontal lines. This was due to a singular bad screen abd Google replaced it immediately.

Go for the Nexus 5. No issues as far as build quality. The only thing is battery life is not as good but I still get 4 and a half hours SOT on average daily. It's a flashoholics dream, amazing performance,and is beautifully constructed. It outperforms in day to day use any device I've ever used besides the M8 abd the M8 is not a huge difference.
[G2 General] DrugsBunny:
OMni is on 4.4.x so thats kitkat my friend!
[G2 General] DREWHAMM974:
But it is still using the 4.2 sources. It is kind of a hybrid between the two. Kind of like Jelly Kat, or Kit Bean.
[G2 General] daryelv:
Omni is still using 4.2 blobs. They have decided to wait on upgrading to 4.4.x until these screen issues are resolved.
[G2 General] easyguy:
Once again, there should not be such a list as a "safe" list.

I guess this is one reason why companies lock their bootloader, so they wont get RMA of phones lol.
[G2 General] kayusumi222:
I have encountered black lines on the right side of my screen on my D802

Last time I flashed AICP KK 4.4.2_r2 and restored my apps via Titanium Backup, after a reboot, bomb! Black line appears with yellow shadows

So I have to flash back to stock and RMA

After RMA, I flashed AICP again and tried to reboot some times, nothing happened

Currently I am on Cloudystock 2.2 with Dori's 5.0 kernel, everything is fine
[G2 General] ptesmoke:
I remember the superbrick..only phone I've not been able to save :( i9100...stock..stock ota to ICS...boom...paperweight. and yes what a mess it caused in the community. I hope this screen thing isn't half as bad because now I'm afraid to flash the wife's phone lol
[G2 General] vrda08:
Houstonn update about screen issue.

http://xdaforums.com/showthread.php?p=53291191
[G2 General] shriom_manerker:
how did u update those partitions ?

oh and btw im having the lgd/lgit pannel . no white line issue or any permanent damage, also note that i never upgraded to kitkat from the ota or the kdz. i had custom recovery so i just updated to phillz and installed kitkat modem and flashed the latest stock rom. no issues what so ever but only aosp roms heat up my device like crazy ! so i only use stock based roms now
[G2 General] RusherDude:
Hahaha sorry if I scared you, yeah i9100's superbrick was terrible, this isn't close to such magnitude :P.

And how did you get superbrick? On an OTA to ICS???? When you flashed the OTA to ICS, if you were on GB, you were using GB kernel (safe) and thus when it wiped it couldn't superbrick the phone.. are you sure that was the way it happened? you had to wipe using the 4.0.4 ICS kernel (after updating via ota..) to get a superbrick!

---

Edit: Reading the new op:

Lines after playing with adb and recovery on 100% always stock?? It's a confirmation for HEAT as the ONLY responsible for the issue. THe phone gets hot everywhere (playing, on adb, on recovery, etc..) but the cause for the bug is the heat produced in any situation..
[G2 General] :
dude what causes the heat, thats the bug....not heat itself its a result.

Any situation could mean its triggered often, very often.

use cooltool to show a nifty battery temp overlay on statusbar. When it goes beyond, anyone know a threshold? degrees centigrate or Fahrenheit then put phone off, in plastic bag and in freezer ;)

edit might be nice to get the pvs bins distribution of the blackline effected screens
[G2 General] RusherDude:
You're very wrong, phone components (motherboard/screen/etc) have defenses in order to be protected from heat. This is a DESIGN FAIL which is provoking that heat -> screen damage, not thae heat per se.

The heat happens on every phone, and it doesn't damage anything. In fact, my Nexus 5 burns like hell and I don't have any kind of screen problems.
[G2 General] Droid2drummer:
Just a quick observation...

I replaced a screen digitizer glass not lcd by separating the two with heat..all was good after testing. During the swap and after. I borked the chip that the connects battery flex cable to get power but i was able to rig it til solder arrives. However after putting back together i got pixelization and black lines. I used lots of heat. I unhooked battery during repair but not taken out. Anyway i have black lines as seen in post here pages back. Also a grey hue ...i will re tear and rebuild again but heat i am sure caused this. Just an observation. That is nexus 4. Btw it was my first repair ever on my own device. This never happened on any other brand or make. I was told by colleague that this is result of too much haste and heat...i knew better but i was being timed by buddy. Both of us bet on same repair that could be done in ten minutes. So i hit the hair dryer 3 minutes. The glass just pretty much peeled right off. But it worked after testing. But i heat it up again to get the new glue or adhesive hot to grab frame. That i believe is when the heat was just too much.
[G2 General] pvillasuso:
Found this : http://xdaforums.com/showpost.php?p=52778355&postcount=1

anyone have done this ?

sorry if it has been discussed or pointed out before, this thread is getting big !
[G2 General] 1ackass:
Someone could just heat their screen with a heater or a hair dryer and see if any black lines are appearing :D
[G2 General] bender_007:
It's for temporary white lines due to panel manufacturer difference.

The thread is about permanent damage.
[G2 General] jamsoolee:
So... I had 3 lines, thought it couldn't get any worse, flashed Team EOS again, and low and behold, I have a bunch of lines now.

EDIT: Luckily LG will replace mine, just have to go ~2 weeks without a phone.
[G2 General] bweN diorD:
just a suggestion,

you guys should post some post "hot as hell" temps, to get an idea of the range we are dealing with.

everyone's opinion of hot is likely not the same, and repeated post claiming excessive heat are really pointless and useless without some reference so we can get an average temp to be aware of for overheating.

i know mine averages around 106f while speed charging in an ac environment.

i dont get concerned unless it starts passing 110f, only because i had a defective bionic that overheated to 120f and shut itself off (i returned it the same day for a new one and never had the issue again).

just a thought, could be helpful to have a reference...
[G2 General] Lawlrus:
Nine times out of ten, these issues are with reboots not it just getting hot. If you get the phone up to say 60c then reboot, the act of rebooting generates a lot of heat, and thats whats causing it.

I might be wrong, but there wad one guy saying the lines would show up then go away when he was playig games. But i dont think i saw anyone "just get them because the phone got hot"

There are safeguards in place that throttle the phone down once it hits a certain temp, and the problem is on a boot, there are none.
[G2 General] bweN diorD:
i understand that,

im just not buying into the heat theory 100%.

i can see it where there was repeated flashing or prolonged adb etc.

but from an average temp phone, say anywhere 95f and below, you can only generate so much heat in the 15-20 sec it takes to flash the rom.

you would have to basically create a short in the battery, or some ridiculous draw (nearly the same as far as the battery knows) to create that kind of heat in that short of time.

another interesting thought,

were flashing mere 200m files @ 15-20 seconds average.

i dont recall, but whats that 3 gig factory file take to flash?

if we were going to see heat issues they should have popped up a lot more and not mostly recently, just from flashing stock alone with that huge file.

i find it odd that there hasnt been a single report from a full stock flash considering the heat that must make, dont you? (ota's dont count, generally much smaller = less heat)
[G2 General] Lawlrus:
Goes back to what dr87 was talking about with the possibility of a third screen type. Its more then likely a multitude of issues or possibilites.

People flash a rom and twenty min later, or two hours, they reboot, and boom they have lines. That could be a screen type issue.

Then you have autoprimes lines, he doesnt even use a custom recovery, he boots into the STOCK recovery and he got the lines. That has to be a heat issue.

Either way, someone screwed the pooch somewhere at LG.

With there being so many different ways they have occured, i dont know if it will ever be 100% explained.
[G2 General] bweN diorD:
i agree, its likely to never be proven without doubt and random speculation.

one way to cut down on heat would be to throttle back the write times a little, but i dont know if thats possible.
[G2 General] Lawlrus:
Bart was talking about doing that with vanir. I like you, have no idea of its likelyhood
[G2 General] bps119:
I have replaced the device through warranty with at&t, but they sent a completely new device. That was in February and I've been flashing roms on it since it arrived. No lines on the second device yet, knock on wood, but perhaps they fixed the issue in the devices manufactured after a certain date?
[G2 General] Lawlrus:
Its hit or miss. Im on a vs980 from october that came bundled with the first incarnation of 4.2, have flashed this thing well over a hundered times, and no issue
[G2 General] slayer3032:
I have a device from T-Mobile's launch, I've flashed the hell out of it and at least 3 days of the week burn the hell out of it by abusing it for tens of gigabytes worth of tethered Netflix. I've never felt it get anywhere near as hot when normally using or flashing/backing up/restoring as when I abuse it for tethering Netflix.

I also have a later LS980 and it seems to be doing just fine.
[G2 General] ephumuris:
My experience with my first G2 was pretty strange. I don't think it was heat related. I was on stock ROM. I flashed an AOSP kernel by accident and on first boot up after flashing I got the black lines. Luckily it was on my first two weeks of owning it and my replacement came in less than a week.
[G2 General] darkness_ger:
Hey,

i had the same issue with my LG G2. It fallen down on the floor at the weekend. And after a reboot i had the same black lines on the right side.

There are Pictures on a german side. but i can set a link here :(

I'll uploade them later.

I had the CM11-M6 flashed.

Maybe it is the same issue like the other. First i thought was a result of the crash...
[G2 General] martindar:
technically you broke the warranty when and if u rooted and installed a custom recovery-however you maybe lucky,i would flash to stock and then send it in and hope!
[G2 General] Matze060906:
Does LG phones have a flash counter like samsung phones? I really hope that i never see the stripes on my phone... :cool:
[G2 General] Schrotty35:
I get also now the black lines. Have install latest temsek rom.

Gesendet von meinem LG-D802 mit Tapatalk
[G2 General] kewkie:
Nope.. last year i had hardbricked my LG. So, i couldnt enter downloadmode or recovery.. everything was totally broken and bricked, AND on the internal SD card were a custom rom, superSU.zip and a custom kernel (i think it was dorimanx). So, i thought "sh*t.. i wont get it back repaired", well i tried my best, sent it to my contractor and got it back after few days with a new motherboard/platine, without any issues (well, they couldnt even looked into the internal card whats on it :D think that was lucky). But the LG doesnt have a counter (at least i dont know about it, not like samsung). Best thing you can do. Flash a stock .kdz to be on pure stock and send it to RMA and cross fingers.
[G2 General] 3pcssuits:
and this how one hides the black bars. So how do you hide those lovely black bars?
[G2 General] 3pcssuits:
Obviously you can't see them on the screen shot but the lines blend nicely with the wallpaper.
[G2 General] princetrey07:
Sorry if I'm missing anything but when I type the commands to find out what type of screen I have it just returns this:

console=ttyHSL0,115200,n8 androidboot.hardware=g2 user_debug=31 msm_rtb.filter=0

x0 androidboot.emmc=true androidboot.serialno=01d86d7e5909b78d lge.signed_image=

true androidboot.baseband=msm vmalloc=600m uart_console lge.rev=rev_10 lcd_maker

_id=0 cont_splash_enabled=true gpt androidboot.mode lge.bootreason=0xffffffff lg

e.kcal lge.hreset=off androidboot.laf androidboot.dlcomplete=0 lge.bnr androidbo

ot.lge.lcdbreak_mode maxcpus=4
[G2 General] basti2909:
Puuh after reading the last pages of this thread im not shure to flash anything on my phone. D802 int with lgd screen... Even if i decide to flash back via kdz it could happen if it is a heat issue... But before this thread appears i was running pa without any issues..
[G2 General] easyguy:
One positive we can take away from this is that it is still under warranty for MOST, the phone have not been out for a year yet. Maybe its a blessing in disguise to get the damage now then after the warranty period?

I think this is a screen issue, i bet there are thousands of people out there that doesn't root or custom rom their phones or come to XDA and have to send it back to LG because of the exact same problem.
[G2 General] jamsoolee:
Odd thing. I'm running stock , and during GPS use, one new line showed up. So.... This is odd and frustrating. I could handle a few lines on the right but this new one is more center than the rest. Yes, running stock.

EDIT: gonna test something
[G2 General] basti2909:
Alegen Rom also reported. Maybe in 2 or 3 month we got more also with stock/pro/flex roms
[G2 General] Compass Linux:
Is that the full output?

Try this if it isn't: cat /proc/cmdline | grep -i mdss (instead of the "cat" from this post)

When I was in P.A. the output was different than now with CloudyStock which shows my panel (correcty, I hope), and I don't know why.

Compass.
[G2 General] dr87:
LGD panels are made by LG in Korea

JDI panels are imported from Japan

We have confirmed cases on both panels which makes a manufacturing defect less likely. Since it even happens pure stock, LG messing up something in the panel drivers (or display settings) could make sense as well. We still can't confirm anything.
[G2 General] jamsoolee:
Please do not disregard my post because my post count is low.

So I'm not sure if someone else has figured this out already, but I'm almost 100% confident that most, if not all the screen damage is coming from heat. I was running full stock simply using Google Maps, where I live, it hit 104 today and needless to say my phone got hot as well. Once I arrived at my destination, to my surprise, I had an additional line added to the several already on my screen.

I decided to run a test. My phone never could flash and boot the Team EOS Revival ROM, but I thought back to when I attempted to and got lines, my phone was hot as hell. So this time I shut it off, sat it in a cool area of my house, and gave it a shot. Flashed, booted, running all fine without any issues, no weird start.

Phone info:

VS980, 24A bootstack, LGD panel.

Got my first lines from Team EOS ROM, went full stock, unrooted and all, got another line, back to Team EOS ROM, running just fine.

On a side note, G3 is scheduled to release this July? :)
[G2 General] lacus:
By "running just fine" did you mean the lines are gone?
[G2 General] zsdiogo:
I think he means there were no additional black lines. And no weirdeness with the LG logo on boot, wich is the first "indicator" of the black lines of death :D
[G2 General] vrda08:
its not heat issue, it is something with cm sources.. weird colors LG logo appears only when i flash teamEOS rom, i immediately hard reset to recovery and flash back to mahdi, which never shows that bad colors LG logo. All good for now, no lines.
[G2 General] jamsoolee:
Running fine as in the black lines are still there, but no additional.

Whoa, it's like you posted exactly what I was going to.. Are you a mind-reading wizard?

But basically, boots normally and all that good jazz.

HOWEVER, my phone got a little hot again because I went flash crazy in recovery using ADB, and it booted funny again with the LG logo going all crazy. Luckily, I found if you manage to shut it down quickly enough or your phone isn't too hot, no additional lines will appear.

The key in my opinion, keep your phone cool while flashing or rebooting. Try to keep it from getting TOO hot during usage.
[G2 General] kewkie:
So from what i've understand, 4.2.2/jellybean is the most safest rom to use?
[G2 General] vrda08:
Go to Mahdi rom and you will never see that weird lg logo. Thats my case.
[G2 General] jamsoolee:
As far as I've experienced, I've never had the weird LG logo on boot while running Mahdi or stock.

But the fact remains that I got more lines while running stock, which was believed to be the safest. That has obviously been debunked, which means no ROM is safe, and I would not be surprised to hear reports of additional lines while running Mahdi with a high phone temp.
[G2 General] vrda08:
yes you got now lines on stock, but thats because your panel is broken before with some other cm based rom.
[G2 General] borjaox:
Has been confirmed that all broken screens started with 4.4.2 sourced roms (stock or not)? Many people are insisting that 4.2.2 is safe.
[G2 General] kewkie:
It doesnt matter what ROM you use, CM, AOSP, Stock, even on ADB it can happen. But from i've read it mostly happens on Kitkat/4.4.2/4.4.3

I didnt read anything about Jellybean/4.2.2, so i THINK (but not sure) that use a Jellybean stock rom is the safest way at the moment... correct me if i'm wrong, wont throw out wrong informations! (maybe [MENTION=5232783]dr87[/MENTION] can confirm this?)
[G2 General] jamsoolee:
Read the OP, autoprime got lines fully stock, no prior problems, while just messing around with ADB. That goes to show that it doesn't matter if you're using Mahdi, stock, AOKP, or whatever, it seems like 4.4.x is just messing things up here and there.
[G2 General] zsdiogo:
Something like that, yeah ;)

While I agree that heat is definitely the key to this problem, I think there must be something else. I never got the black lines, but I remember that when I was on Cloudystock (I'm on Mahdi now) sometimes my phone got hot as hell when performing system restores. Occasionally even while charging the battery. And yet, I never got any strange behavior with the lg logo.
[G2 General] borjaox:
ROMs based on 4.2.2 sources (even 4.4.2 and 4.4.3 ROMs) appear to be safer since there are fewer reports. I have experienced the non-persistent lines myself in the LG initial screen in ROMs based on 4.4.2 sources but not in 4.2.2 based ROMs.
[G2 General] fordmanck:
But think about this. Most of us that are on here are chasing the latest and greatest versions of Android. How many people on here are actually running 4.2.2 based ROM's? I think there is probably a much greater sample of people out there, they just aren't phone nerds like us. I recently started playing PVZ2 and let me tell you, if heat is an issue, it's going to happen to me again. That game gets my phone smoking hot.
[G2 General] Compass Linux:
When you're performing a system restore do you mean using recovery? Cause if that's the case I don't think the ROM you're using makes any difference.

Same here. Plants vs Zombies 2 makes my G2 smoking hot (If I remember well, the peak temperature was 47° celsius). Haven't tried it lately on CloudyStock yet. I'll play for around 20/30 minutes right now and see what GSAM Battery Monitor tells me.

Update: After playing for 27 minutes I got 39° celsius on a cold morning. Not that high.

Compass.
[G2 General] erto90:
guys, do you think the problem can be oriented to the fact lot of people turn on High Temperature Property by dialing 3845#*XXX#?

Or better, can ,doing this, increase the possibility of fridge the screen due to high temps?
[G2 General] zsdiogo:
That is not what I am saying. I don't think there is any relation between the ROMs and the lines. But I am saying that with cloudystock my phone got hotter when charging then with Mahdi.
[G2 General] Compass Linux:
Thing is, that only works in the Stock Dialer as far as I know, and we've seen this happening independently of the ROM. Now some Custom ROMs might have the option to do the same, but I myself never changed anything related to that. It's a lot more trickier than overclocking a CPU in a PC in my opinion (where you have easy access to the hardware).

Compass.
[G2 General] MasterTB:
Any way for you (or other developers) to get word from LG itself about this issue? I guess with all the phones that have gone for repair or replacement they must be aware of the issue and have a say in it?

Wouldn't it be wise to try to reach them?
[G2 General] musashihatred:
It's really hard just to base it on just heat.

and as dr said, anything goes dead with a high temperature so it's a given.

since we can't still point out where this leads to, maybe we can also include when we purchased the device.

since we can also think that there are batches that are safe (if ever).

just like the later batches of nexus 4 which have somewhat studs in the back glass panel.

anything really goes.

i've been rebooting and rebooting since this case is mostly triggered from a reboot.

but ive been flashing kernels as well (most of the cases my phone doesnt boot. and i dont know why)

still doesnt have a black line.

though one time, had my phone @70 degrees constant for an hour. (pretty hot here in our place)

still havent got one. oh. and my phone was just new. around 2-3 months.
[G2 General] borjaox:
A new OTA is being pushed by AT&T.

http://www.androidpolice.com/2014/0...hat-includes-the-knock-code-security-feature/

It would be interesting to know if LG is also including any patches for the screen problem but, since the changelog does not say anything about that, we would need to wait for the source code to be released.
[G2 General] jamsoolee:
I had been really lucky for quite some time before I got the lines. Several times I flashed, got the weird LG logo, but no lines. Phone was extremely hot and I continued to flash and then finally got the lines. Had I found this thread sooner I could have a flawless screen still, oh well.
[G2 General] varund7726:
lol LG service centre ppl don't know sh*t!!

I sent my phone for repair because of a display problem back in January and I couldn't even restore stock because I couldn't see anything properly on the screen

I was running Vertigos unofficial cm and they replaced my display within a week without any issues
[G2 General] kbkang:
D802 here, fresh clean latest pa (4.4.3 if i'm not wrong), rebooted to apply density change made with rom toolbox pro, watched away from display for 10 seconds, i find it black with many vertical stripes of greyish color. keep pwr button pressed, weird coloured lg logo appears, press again pwr till it shuts down for sure. at reboot everything is ok, no lines and dpi is set as i wanted. screen is LGD.