yashsingh1/xdaforums huggingface dataset:
[G2 General] lazer77:
Flashing back to stock does not solve the issue.

Sent from my LG-D800

---------- Post added at 03:01 AM ---------- Previous post was at 02:58 AM ----------

Fairly certain all KK roms now require official KK modems. There was only a brief time where a modded one by dr87 was used to fix rotation.

Sent from my LG-D800
[G2 General] WolfmanJack:
wasn't saying that flashing back to stock would fix the issue at all, I'm talking about the fact that saying a piece of hardware is permanently damaged based off of flashing software when flashing can bring mixed results with other things when the same steps are repeated is a little bit of a jump for me.

IMO the only way to truly tell if these screens are in fact toasted is pull an effected screen and drop it in a un effected phone. All I was getting at.
[G2 General] DREWHAMM974:
I had it happen to me upgrading to KitKat on my ls980 when ota rolled out and was told by LG warranty at least half of the repairs that month had been due to faulty displays. I don't believe it's all due to these AOSP ROMs since it happened to me with a stock kitkat OTA from Sprint. Like someone else said power surge during booting after system has been modified through recovery. Stock or otherwise IMHO
[G2 General] Compass Linux:
Will add Stock KitKat OTA from Sprint to OP.

Thanks.

Compass.
[G2 General] emoibm:
Guys i know everything points to some faulty hardware but we can't ignore the fact that Mahdi is one of the biggest Roms here (in message number ) and there isn't one single case. All these Roms must have something in common .

Enviado de meu LG-D802 usando Tapatalk
[G2 General] DREWHAMM974:
It may be worth figuring out the build date of each device, that way we could know if it might be device from close to same lot of devices
[G2 General] ckyy:
I had the exact same issue yesterday when going from PA to carbon.

Gesendet von meinem LG-D802 mit Tapatalk
[G2 General] khaytsus:
You seem to be missing the entire point of this thread; figuring out what the cause of the black line failure is and how to avoid it.

And if you think LG knows and is keeping it some big secret I imagine they are as clueless as we are.
[G2 General] :
Well I thought my wording was polite. I didnt call names, give false info or anything else, just requested you to read.

Glad you have done now.

You have an interesting point, I think once the phone is booted the temp protection is there. Upon shutdown it should still be there. I also dont know the exact details of a shutdown procedure. Maybe someone who knows can enlighten us.

However the first thing this device is missing when its not booted is those safeguards that the phone has when it is booted. So that is kinda prio 1, at least until other more likely candidates are known.

Other hardware is possible, I wonder what Gramm is doing. We dont however know much, even those that do say it most likely heat and still could be a lot of other things.

The thing is, something may be causing the lcd screens to derp. Excessive heat caused by something. Its also possible there is just hardware weaknesses, design flaws or plain bad manufacturing. We cant safeguard for hardware faults, but we may for others. Glad dr came up with the recovery thing.
[G2 General] dnsp:
Can you guys with the black lines check the date of manufacture of your device? You can do it here. Mine is from: 01/04/2014. So far no black lines...
[G2 General] :
Yeah I wouldnt be putting my imei any where near a non lg site

This gives you the same from lg themselves:

csmg.lgmobile.com:9002/svc/popup/model_check.jsp?esn=my-IMEI
[G2 General] rancur3p1c:
heros started testing lol

so, is this a panel thing? or a pan-panel problem??? hehe
[G2 General] kbkang:
no black lines, once had weird graphics on boot after a flash, forced shutdown and booted again, no permanent damage.

production date: 09/13/2013

D802 with LGD
[G2 General] Dameon45:
My screen randomly freaks out now. Something must be screwy with the touch screen. Sometimes it will just select things and jump to different pages. Just randomly started doing it.
[G2 General] :
Try with dry, non greasy hands and cleaned screen. Could be surface. Or broken touch screen/digitizer.

Could also be lagg. Check your cpu, if it jumps up and down as well. If thats the case a factory reset may do something.

If root then try logs. Do note this questions belongs in a q&a thread as it seems unrelated to the issue discussed in this thread.
[G2 General] ales100i:
Got mine from repair and everything is back to normal. But i do notice one thing. Is the number of newly afected phones gone down from like a month ago? I do not see any reports of phones this happening to in quite some time in this thread. Did people just stop reporting the problem, or are the commits that were suspected in the first place and are now gone from roms to blame? Just asking. Altough i got mine repaired no questions asked in warranty, i decided not to flash anything while this is resolved. It seems unfair to cause someone expense if they are not to blame.
[G2 General] :
It does make three things possibly funny

1trigger may have been fixed/ avoided for most

2 less people flashing, less bricks

3 ever noticed when one has issue suddenly a lot more have the issue, and not when the issue is not reported whilst still there?

I still believe any damage avoiding/ prevention is pretty much worth it
[G2 General] DeV4473:
Had this happen before. Check Q&A for phantom touch / touchscreen issue threads. I really hate to say it, but this problem will probably evolve to a dead strip across your digitizer, probably around the install button area on the play store. If it doesn't, all the power to you. But just a little heads up, because this is how 90% of those digitizer issues started in the other threads, including my own. I won't clog up this thread anymore with this issue though since we have other threads for that anyways haha.
[G2 General] tryman87:
i'm also experiencing screen issues with my G2. This video taken last saturday after leaving the screen on for -15-20mins this happened.

http://youtu.be/8Omj4Upfp5o
[G2 General] kewkie:
Which rom did u use before this happend?
[G2 General] :
You can't blame the rom
[G2 General] maxniper:
Lucky me the phone started screen shaking when the guy at the store was making some teste to the device and guive me a new one diretly, i hoppe this one is ok now.
[G2 General] musashihatred:
how did you do this? :confused:
[G2 General] mrdunn:
My Verizon LG G2 developed a flaky Headphone Jack, so I called both LG and Verizon. Since I bought a used phone on Craigslist, was worried about the warranty. Both told me it was covered since the phone has been out less than a year, didn't ask any questions or for the receipt, and Verizon is going to send me a "new" phone. I restored to factory stock as on this forum, and the it says "unrooted" now. Posting here for Verizon owners worried about returning their phones for the lines after flashing.
[G2 General] tryman87:
G PRO 2 v2.2

Rom installed was CloudyPro II 2.2, and i've been using it for months. I returned to stock JB 10E and upgraded to Kitkat 20B yesterday and the problems still persists. I'll be going to LG Service Center tomorrow to get my unit checked.

---------- Post added at 03:57 AM ---------- Previous post was at 03:55 AM ----------

True :D
[G2 General] kewkie:
I know i cant blame the ROM, but the more infos we have, the better it is or? :)

Anyways, thanks for saying which rom you had. I'm wondering if it'll happen to me anytime. Earlier this year i already had sent my G2 back to RMA, they changed the motherboard/Platine (bad download of a ROM *sadface*), so they might rearranged everything already? i dont know, because i was a flashaholic, but since i heard about this issue, i'm not that flashaholic anymore, just flashing updates of my favorite roms :)
[G2 General] jdk2:
This is for the AT&T LG G2:

http://csmg.lgmobile.com:9002/svc/popup/model_check.jsp?model=LGD800&esn=ADD_IMEI_HERE

where model= is your model number and add your IMEI after esn=
[G2 General] Skizzy034:
Is this a problem on the D800 also?
[G2 General] jdk2:
I don't have the problem on mine on AT&T.
[G2 General] Mas-Tool:
Got the black lines

Hi guys,

I got black lines on the right side of the screen right after installing the CARBON rom nightly.

I still got warranty, I hope they will accept to fix it.
[G2 General] nelsonator1982:
Yes it happend to me and I have a D800
[G2 General] mike t:
Didn't get black lines but I did get a place on my screen that doesn't respond to touch. It happened after playing a game for about 30 min and the phone getting really hot and then restoring a backup. You can see in the screen shot where the digitizer is not responding.
[G2 General] Skizzy034:
Wow I'm surprised these defects weren't acknowledged more in the mainstream media. Seems like a major problem that only the G2 has.
[G2 General] :
https://www.google.nl/search?site=&...nes+mobile+screen&oq=blacklines+mobile+screen

Its not that uncommon across mobile phones. G2 isn't the only phone to ever have this.
[G2 General] Skizzy034:
I'm afraid to flash any kernels or use anything CPU intensive that would cause heat on my D800 now =/. That sucks because I'm gonna be noticeably avoiding using the device. I guess I'll have to use the phone for just that, a phone only haha. These devices are too expensive to be held down by a major flaw like that. It's totally unacceptable from LG, AT&T, or any other carriers. Cutting corners by putting jdi screens in instead of their own LG screens. I hope the G3 is different. LG has done an awesome job otherwise with the G2. It's my all time favorite smartphone that I've owned. Better than the Note 3, etc. imo. I really wanna support LG but the way they are looking down even their international flagships and not acknowledging such a major flaw in their screens is making me second-guess that decision.
[G2 General] :
Your best bet is using those that have least ones happening or don't reboot to often/ flash to much/stay to long in recovery.

Judging by the amount of cases its nothing to be to worried about. Not many cases after the dreaded pa build happened on pa. Not that many cases in general considering how many are out.

It may not even be LGs fault that it happened on those few. We don't know that.
[G2 General] :
We do know it's not the roms faults.
[G2 General] Skizzy034:
Yea because it happened to autoprime on a fully stock build with a stock recovery. Seems like a hardware fault.
[G2 General] :
I believe it's jdi screen and it's faultiness
[G2 General] :
Well we dont 100%. More like 40%.

We can argue this because yes other ROMs had this. Even cases on stock. But one cannot ignore most of the cases happened in a relatively short time span considering the time the g2s are out. After changes that were deemed risky were rolled back on those ROMs with highest amount of cases, the steady flow diminished to a small flow.

The number game earlier suggested (more people flash popular ROMs, it so issue is more are likely to develop) doesn't hold to the following argument; flashing those popular ROMs was going on before and after the most incidents happen. So why not the same amount of incidents before or after. Something is triggering/ causing these black lines rather then just general heat or hardware. Statistics tell a lot.

This suggests strongly that its not a general ROM independent defect nor a general hardware defect.

Why 40% and not 10 or even 1% given above proof.

The snapdragon gets hot during reboot/recovery operations. Dr has found out that the bug was shutdown temp being reached before boot, which should be fixed, he is developing those as we speak. Because those are also not there on stock suggest a higher likelihood which raises it to 40%. But definitely not 50 or 100% that its not a ROM or some changes fault.

Edit: fixed post
[G2 General] :
Again it's not the rom to blame. I have flashed thousands of times and no issues. It's something else that is making the display go berserk. Also from the Statistic it shows the jdi (none lg) screens having the issue.
[G2 General] vuut:
The new Rom K-code out there,, on,, off yet???
[G2 General] :
The op had an lg panel. I thought it was mainly lg panels though. Could be very wrong. Jdi panels get temporary white stripes, not black though and for a known reason. I think drivers.

Given the small number relatively, and its completely not reproducible for a lot one cannot say with high certainty: "because I never had the issue then it must be something else." One cannot say the opposite also with high certainty. I will grant you that. Just want to point out that we still don't know a lot for certain.

I just have difficulty assuming it must be this or that. Just as I have difficulty with people saying it is when its not certain. Derp, I am bugged lol.
[G2 General] Magic2010:
Just wanna leave here my experience about what happened to me.

After flashed the first version of Slimkat with Kk sources I had some problems at boot, LG logo appeared all messed up and sometimes I had to press Power Button till it reboots again and then all was Ok.

Happened to me twice in the same day of the flash, never rebooted the phone after that and never had lines in the rom.

This week decided to take the risk and flashed Claudyfa's G3 port, no problem at all...booted ok to TWRP and flashed also some mods and no problems...LG logo as new.

Wheel just my experience, maybe nothing is related....dont know...
[G2 General] easyguy:
Dr, never rolled his rom back, he also stated he never included any of the commits in his rom, yet his were also affected. Hence it was not a commit issue, if it was, his rom would not have any screen problem.

Have you ever thought about manufacturer defect where once a phone/screen reaches so many hours used it will start to fail? That happens a lot in electronics.

What processor doesn't heat up during reboot or power on/off? That is when they have to do the most calculation. I understand that you look up to Dr, but he have been wrong before and have yet to prove any of his theories is correct.

---------- Post added at 05:00 AM ---------- Previous post was at 04:54 AM ----------

Correct me if I'm wrong, but I've read many posts stating that if people flashed certain kernel where the panel type is different it will be rewritten to that of the latest kernel. So who knows who actually have what panel, until we open up our phones.
[G2 General] DREWHAMM974:
I other devices (The Nexus 5 comes to mind) have temperature throttle even in recovery which the G2 does not have. Other phones have these temperature fail safe put in place and don't have this issue, and although the Nexus 5 Is a different device it is so similar to the G2 as to where they are definitely siblings as it was based off of the G2. Same parts all besides body and ?screen? so seeing how it has its temperature controlled in recovery shows that it may be needed and that heat could very much be a lot of the problem. I got the lines monthsback after an intense Gta SA session when I took an ota after getting annoyed about the pop ups in my notification with sprints kk update. Heat obviously played a factor in mine so why not the other cases as well?
[G2 General] :
First, thanks easyguy for taking the time to check validity of statements. I have been known to be wrong.

well I am not even sure he had 1 case of permanent black stripes. If he did it wasn't as many as the other roms all at once.

True, but we havent ruled that out, nor confirmed it.

we have all been wrong before, however he looked into code and eatablished as much. He cannot be wrong about that. Which makes the case for ruling that out as a case more necessary. However note heat induced damage may develop over time, as the panel bonding may be damaged to a point of degradation where it wouldn't have if software weren't the single point of failure for 70% of these cases. Again speculating cause we dont know this much.

also true, well if they had jdi they would have white stripes before and known about it. When more issues happened sources causing this had been out a while so they would have known that by flashing earlier roms.

As I said we dont know much, however folowing my logic/opinion its possible. Like your opinion is also possible.

We can only hope that no cases occur after flashing dr fixes, as well as that his fixes are working or not causing other issues. :)
[G2 General] borjaox:
It is also possible that only certain batches of G2s are affected or are more prompt to get permanent screen damage. This would explain why there is people out there that had not and will not have any problems. Once again, we would have to wait to see if LG has something to say about this problem.

Sent from my Nexus 7
[G2 General] :
That's the thing we somehow gotta figure out what ones are more prone to this. Like is it earlier ones made or newer. My best guess are ones that were in the earlier stages.
[G2 General] Skizzy034:
The hottest my phone got so far was during a backup and reboot after it was done.
[G2 General] borjaox:
Mine is a D802 manufactured on 22 February 2014. I had temporary white lines at start LG screen that when away rebooting. That was with Carbon build dated 1 June 2014. No more in newer builds and no permanent damage.

Sent from my Nexus 7
[G2 General] :
The white lines if I recall is a completely different issue. I think that is something to do with incorrect kernel being used
[G2 General] jesssiii:
Well, VS980 here. Been going between Mahdi and xdabbeb ROMs with no problems at all. Just clean flashed EOS and it went crazy on first boot with fading screen and prominent black lines running vertically on the right. Rebooted and it was gone. Later I rebooted again and it showed a colorfully garbled screen during boot with the dark lines on the right. I immediately rebooted into recovery and restored Mahdi. No black lines. Don't know if this info is useful, just thought I'd share.
[G2 General] RusherDude:
Exactly my points.
[G2 General] Skizzy034:
Good thing I don't like stock Android roms lol. Seems the problems lie mostly with them.
[G2 General] Compass Linux:
According to this LG G3 YouTube Review, the LG G3 can heat to the point that it won't let you increase the brightness to a certain point. Google Maps even threatened to shut down his phone if the temperature didn't go down.

I hope the LG G3 isn't subject to the same problem we're having, otherwise I think LG has some serious quality control issues, to say the least.

Compass.
[G2 General] Flynny75:
But also remember the G3 with its QHD display has a lot more pixels to control... Its probably to stop dead pixels rather than whole lines
[G2 General] Skizzy034:
I saw this happen to the g2 on early 4.2.2.
[G2 General] bweN diorD:
here are the new twrp builds by [MENTION=5232783]dr87[/MENTION] with cpu control to cut down on the heat issue.

http://xdaforums.com/showpost.php?p=53605359&postcount=10351
[G2 General] tryman87:
I went to LG Service Center yesterday on one of the malls here in the Philippines, i have them checked my phone and replaced the motherboard, it is still under warranty so no payments made. But they never told me the cause of the screen bouncing issues. :rolleyes:
[G2 General] :
lets hope with these precautions that the issues never resurface :) thus ruling in recovery to certain degree as a cause. A certain degree because sometimes issues surface in combination or randomly.
[G2 General] Schrotty35:
I hope there a coming also a recovery fix for philz.

Gesendet von meinem LG-D802 mit Tapatalk
[G2 General] RoboJoe:
Just saw the funky greenish colored LG logo and a pretty sizable black bar running down the right hand side of my screen; the thing was that my phone wasn't even remotely hot. (It could barely be called warm.)

I'm running TWRP and Carbon-Rom 6/22 nightly.

I flashed that nightly last night and was experiencing extreme battery drain from Android System (which always seems to happen when I dirty flash that ROM on top of an older version) and so this morning I decided to wipe data.

Booted into recovery, wiped data, rebooted system-- green LG logo.

I killed power as soon as I saw it and it doesn't appear to have caused any permanent damage.

Normally I wipe data, then install the ROM, then GAPPs; it's not normal for me to wipe data after an install.

This is the first time I've seen this issue.
[G2 General] Compass Linux:
As far as I know the more time you spend with your phone hot, the more likely the chance for the black lines to appear, but not on all devices, hence the suspicion it is a defect. In numbers, if the damage is at 99%, it won't take much heat and time to get the black lines. That's how I'd quantify it.

Keep an eye when you do things that generate heat. If the black lines appear again, tell us.

And keep your phone receipt close by. Judging by your post, you might need it.

Compass.
[G2 General] Skizzy034:
Everyone should install TricksterMod or another app that shows the cpu and battery temps then we can record them here and have an idea of the temps when you see the lines or other problems. The hottest my battery got was 37c so far. I usually go by battery temp. The cpu temp, on any device, fluctuates a lot and is usually MUCH hotter than the battery temp. Also, the cpu temp can be high but the phone only feels hot once the battery temp goes up, so I think it's better to record the battery temps here.
[G2 General] RoboJoe:
Will do; and I hope you're wrong-- I use wireless chargers and they tend to heat up the phone significantly.

Also, no receipt; got this phone off of swappa. Wouldn't a manufacturer's warranty still be in effect? Either way, I'm always looking for an excuse to buy a new phone. (Well, an excuse my wife will accept as legitimate.) I think "broken screen" falls under that category. ;)
[G2 General] Schrotty35:
Have you use the normal TWRP or the new from dr87? The new custom TWRP from dr87 have a thermal fix.
[G2 General] JRJ442:
And Knock On to wake the phone back up when the screen times out. His kernel in the recovery fixed TWRPs timeout bug too. ?
[G2 General] dnsp:
I think the survey should include the manufacturing date, "Preorder ; Within a month of launch; November - December 2013; 2014" is very vague. I can purchase a brand new G2 today that was produced in 2013. Maybe this way we could correlate a bad batch with a certain period in time.
[G2 General] mesiorni:
The only explanation is battery heat. All other chip sets are thermal shielded. The battery is glued to The backing plate. As a precaution I would avoid using stock bootloader adb push/pull or download mode as much as possible.
[G2 General] :
you guys, lol.

but seriously use the twrp that Dr made for us, it can be found in the Mahdi thread. There is a fixed version there.

It has screen time out fix, it remembers screen brightness.

It has fixes for temperature.

Love your phone and want to eliminate all possibilities use this recovery. Flash it reboot in recovery and all will be well.

If its heat induced the black lines should not occur anymore. Unless you phone was already damaged by heat and degradaded.
[G2 General] mesiorni:
Alreday did. http://xdaforums.com/showthread.php?p=53609282 don't like contributing? Exit via logout. Kthxbye
[G2 General] :
yeah but with dr fixes you can do all that to rule out its a heat thing. lol.

damage on lcd is right inline with heat issues.

take those away with Dr's twrp
[G2 General] mesiorni:
I was only ruling out hardware issues. Dr's update doesn't fix thermal in download mode. Yes/no?
[G2 General] Schrotty35:
Now its better whene use dr twrp or philz?

Gesendet von meinem LG-D802 mit Tapatalk
[G2 General] Portauxbastard:
Never had an issue

Never had an issue with the screen damage. Thank God!!
[G2 General] Schrotty35:
Good for you but not help other Users.

Gesendet von meinem LG-D802 mit Tapatalk
[G2 General] :
we havent had much or any that happened after download mode to my knowledge. But anyway you have good spirit and want to help! I salute you! Adb and stuff should not be an issue

newest: http://xdaforums.com/showthread.php?p=53612159 use this as it has a model fix :)