yashsingh1/xdaforums huggingface dataset:
[G2 General] daryelv:
Some of the questions that I would be asking that are not on the survey would be...

"Was your phone plugged in while in Recovery?"

"Was your phone plugged in while Rebooting?"

"Was your phone plugged in when the lines first appeared?"

I think it's an important question... We know that there are kernel differences in the way the phone charges from Stock vs. AOSP. There are also issues with AOSP not charging while shutdown...

Just a hypothetical theory, nothing to base it on other than reading some of the user experiences from this thread...

... if the phone is rebooting and there is a problem with the kernel that causes the charging not to work when shutdown, perhaps there is an issue where as it's booting and the charging is enabled at an inopportune time, there may be a spike in voltage while booting.

I've always flashed my phone while unplugged, what has the experience of those who got black lines... were you plugged in (charger? usb? car? etc.) or unplugged?

-Daryel
[G2 General] jl10101:
On my way back from work I was wondering just this... Good question! :)
[G2 General] Formhault:
Speaking of damage & stuff... check this out. Please :D
[G2 General] siankatabg:
Your phone is 2 weeks younger than mine and we have same vertical lines on the screen,so not much people have them and because of that I think there is new batch of digitizer's and why not displays too.Maybe we are lucky to have them :cyclops:
[G2 General] Qix84:
I havent the vertical lines on the screen.
[G2 General] robogo1982:
Erm... no.

That's the date of the ROM build. How do I know? My phone says factory version JUNE-2014. And I am pretty sure I have the phone since November 2013.
[G2 General] Qix84:
If i soft press the screen, i can saw the liquid effect in grey background at full brightness :(
[G2 General] easyguy:
Thanks for stating that this is just your "hypothetical theory". Every post in here should start out like that, so people would not take it as fact. :laugh:

I've thought about that awhile ago. That some surge in power management could triggered those lines. But then the traditional guide lines with flashing is keep your phone plugged in and charging while flashing. So I would think many have been doing that. I've done that from time to time.

Another theory, is maybe faulty charger? Higher wattage? people charging with electrical surges?
[G2 General] :
yeah cause that makes it more likely it happened really a lot on a certain version
[G2 General] Formhault:
Perhaps the displays are newer, too. So that we don't get black lines! :D
[G2 General] :
that would be splendid news haha
[G2 General] flb1213:
How can you tell what was done(repair wise) if you have a cert. refurbished phone? I got black lines on my original G2 back in Jan of this year, sent it back and got a refurbished G2. I would like to know if anyone knows how I can find out the screen type and manufacture date and repairs done to it. Thanks

(btw my first G2 was an original that was ordered back in Aug of 2013)
[G2 General] wulsic:
Well guys i am really thinking of should i buy the g2 or not because of this lines issue.

I think its caused by heat but it could be alsosome problem with the cable of the display or yh idk.

I also read on some websites that users had pressed on the line and it dissapeared so maybe something with the liquid? But i think asking LG doesnt fix anything but we must do research on lcd/ IPS+ lcd screens what could cause the black vertical lines.
[G2 General] Formhault:
Link to the... alleged websites that claimed pressing on the lines fixed them?
[G2 General] wulsic:
Here is a video not exactly but read message at 4:52 https://www.youtube.com/watch?v=8P_i-JIsrYA

http://www.ehow.com/facts_7305160_laptop-display-vertical-lines.html

Also here is a video but i cant find my old website anymore but yh here it is:https://www.youtube.com/watch?v=jthlw4Ynmgo

But pressing could also make it worse. I also had the problem with an old LCD phone without touchscreen and plastic infront of the LCD but after pressing it just spread so i think its something with the liquid maybe but yeah the only one who can give the most accurate answer is LG itself but they are hiding it so customers still buy their phones and saying that the case is only by a couple users. It would be awesome if an LG employee would react but im 100% sure they wont since they may get fired.
[G2 General] Skizzy034:
Does anyone know where the mod link is for the cpu temp on the status bar?
[G2 General] wulsic:
I don't know the mod link if you mean like a modified framework-res or systemui but that's Also risky.

Try xposed and look in the download list for cputemp or something like that PR maybe gravitybox.

OR you can download this module from the link below for cputemp I don't know or it works but I guess so.

http://xdaforums.com/xposed/modules/mod-cputemp-statusbar-t2494170

Edit: does anybody know how far the CPU heat limit is configured in the kernel? I just was reading dorimanx thread and he had put an 80 degrees limit and he never experienced black lines.

My n4 went because of some kernels also max 80 degrees I think because higher then 80 can harm your phone and lifetime.
[G2 General] Formhault:
80 is fine. As Dorimanx said, too, the components get damaged after being exposed to much more than 80 for a long period of time.

My Note 1's CPU got to 98 Celsius degrees once and was constantly over 80. Still ran fine for 8 more months until I sold it. It still runs fine now, I think. :silly:
[G2 General] wulsic:
Yh I will definetly get the g2 after I discovered dorimanx is also here since he made awesome kernels on my previous s2 too.

I just wonder how far the stock goes and how high the limit has beennset or there is no limit. At all.
[G2 General] Formhault:
I was on stock for 3-4 days and, on one occasion, the CPU reached ~80 Centigrades. I was charging off the wall adapter, downloading 10-15 files at the same time as I was browsing the Web (over Wi-Fi). It bounced between 75 and 80 degrees, so I'd say that's the stock limit (80).

Usually, it rarely exceeds 60 Celsius degrees during normal use and 70 while charging, as well. It seems that only downloading stuff at high speeds for prolonged periods of time stress the CPU that much.
[G2 General] wulsic:
We and all the other g2 people must find out the exact reason for the black lines if stock and even custom ROMs has it.
[G2 General] Formhault:
The meaning of life, too... :)
[G2 General] kbkang:
that one is easy, it's 42.
[G2 General] jl10101:
I am really starting to wonder if this has something to do with the bootloader and kitkat. Check this out, there are so far no reports of the issue when coming from JB stock but only from Kitkat based ROMs which would have used the JB bootloader together with KK? Or am I missing the point completely?

Edit: and, these issues only really started coming to the surface right about the time all the KK ROMs started appearing too?

Check out the attachment. Any thoughts?
[G2 General] Skizzy034:
There really wouldn't be any input on 4.2.2. This graph and spreadsheet wasn't started until well after KK was out, and I doubt that any one is even on 4.2.2 anymore. So I don't think those 0's mean anything.
[G2 General] theCroh:
Omnirom is still 4.2.2-based if I haven't totally misunderstood something. Nevertheless, there are two reports for this issue on Omni. I think before those came up, one theory was that JB ROMs would indeed be safe but apparently they're not...

Lähetetty Nexus seiska 2013:sta Tapatalkilla
[G2 General] Roseysdaddy:
How do I go about updating the aboot?
[G2 General] barturblits:
Nice idea.

Dont have the black lines, but when I made a backup in twrp 2.7.1.0 with charger connected the charger and phone became pretty hot. Maybe something to do with the Qualcomm quick charge protocol?
[G2 General] Roseysdaddy:
I am able to flash the latest twrp, philz, and cwm without issue. However, the latest dr87 for my model still gives me this error.
[G2 General] jram0421:
So I'm on carbon rom and I got those lines and the lines went away but I had the lg logo burnt in. I fixed it using an app that is made to fix dead pixels. The lines went away when I flashed the official kk modem. I'm using a d800 btw.
[G2 General] wulsic:
Thankyou how you got the black vertical lines away but i never heard of the lg logo burnt in but glad you fixed it with a dead pixels program fixer.

Can another users with black lines try this too?

It maybe makes sense cause the modem contains many things. without a good modem audio, wifi etc dont work good and even the rom doesnt boot.
[G2 General] Skizzy034:
If he fixed it with a dead pixel app then it is indeed burnt/stuck pixels.
[G2 General] wulsic:
He said the lines went away with other modem and the lg burnedinscreen logo with that deadpixel app but i ask again for people to test if it really works. Maybe he had the reversed problem like jdi displays have with a kernel so like temporary lines but i just want to know for sure.

I still cant believe such an awesome device suffers from those awfull lines. Lol maybe its also becase of the battrycause its glued and its close to the screen and well zerogap technology etc which makes it thinner might give problems.

I hopethat one day an really fast and light device like around the 140-160h which will have the superstrength of old nokia phones.

Just dry the old nokia put out the battery and it then evenworks afer an divein the water.
[G2 General] jram0421:
I had the lines on the boot screen and they were like all kinds of colors then the screen faded to white then blacked out. I had to reboot four times. When I rebooted I had the LG letters burnt into my screen. They showed up on dark items such as the spotify app. I fixed it with the app but I had to let it run for like two hours
[G2 General] Formhault:
What exactly did the dead pixel fix app fix? The burnt in LG logo (which shouldnt't be happening on an IPS display :eek: ) or the black vertical lines (on the right hand side of the screen)?! Or both?!
[G2 General] jram0421:
LG logo. The lines were just on the boot screen. They would go away sometimes with a hard power off and didn't always show up on the boot screen.
[G2 General] :
yeah but bro, 2 out of the thousands, thats like a zero percent chance, just to bad if you are the rounded zero.

also once again, it happened mostly on a certain rom with certain commits

secondly it can occur but almost never on stock.

so no need to go kill yourself ( yet... kidding, no need ever)
[G2 General] Formhault:
If I post a pic of Mikey Mouse poking his eyes out does that mean I did that myself? Lmao nope.

The fact that there appear to be so many variables for this screen thing makes me wanna virtually punch myself in the throat.

---------- Post added at 02:49 PM ---------- Previous post was at 02:39 PM ----------

Where are the lines, on the right side of the screen? Are they vertical and black?
[G2 General] jram0421:
No. I didn't have that issue. I had an issue with multi-color lines showing up on the bootscreen.
[G2 General] Formhault:
So... It is not the black lines that some people have. Glad it's just a different, temporary issue in your case.
[G2 General] jram0421:
CM doesn't look like its affected by it
[G2 General] :
No dont poke your eyes out! please dont hurt yourself.

http://m.youtube.com/watch?v=b6bWK4874VE

edit, in fact do not hurt anyone else either

they have had a lot of black lines also on a certain build though
[G2 General] Formhault:
[MENTION=5403922]wulsic[/MENTION]

I play Castle Clash (pretty intense when it comes to graphics) and the CPU never goes beyond like 60 Celsius degrees (provided I'm not fast charging or sitting in the sun).

I know a guy who has a LG G2 which he dropped pretty hard (small crack on the glass + dent on the bezel). His screen was fine, so he is just lucky.

It's best to try to prevent any drops. I always buy a good, robust case :).

Dead pixels are very rare nowadays. And if a phone has them, it had them since factory. It's highly unlikely that dead pixels may appear over time, now, with how far LCD has come. What is likely to occur later on is a stuck pixel - which can be corrected via rapidly shifting the pixel's state (color).

You're forgetting about those (pretty many, actually) that reported no intense heat when the black lines appeared. For all we know :

-intense heat NOW could affect the display immediately (cause black lines);

-intense heat NOW could make black lines to appear 2-10 weeks from now :)

dr87's TWRP mod has thermal throttling. Search for it, it's been discussed here, in this topic. It's even in the OP, I think.

The CPU on my phone never goes below 35 Centigrades (when indoors). And while the screen is on (even when you're reading an eBook, for example), it will stay above 40 no matter what. Unless it's winter, you know...

If you see the CPU temp sensor reporting >80 Celsius degrees and DON'T stop abusing the phone... you're dumb. The glass is hot to the touch when the CPU nears 75 degrees. Above 80... it will be untouchable.

It's best that if the CPU happens to reach 80-100 Celsius degrees... you stop what you're doing and commence blowing cool air at it. A short exposure to intense heat will NOT damage it right away, but prolonged exposure to 90 Celsius degrees will surely melt it...
[G2 General] wulsic:
Well some games like GTA Sa on android Uses alot of CPU and causes alot of heat and If you are maybe downloading something and having alot of programs open which are syncing constantly and connected to wallcharger then your phone also got overheated so I think everything is pointed to heat because i mean i read through the whole thread and i know that things are different today with the posts i posted about death pixels etc but it is still a explanation and i never read about someone who had a cold phone and got black lines. Also a friend of mine got Black Vertical lines shortly cause i knew he owned it so i asked and he said that he got it after an intense gaming session so again heat.

I also have a case and never broke my screen but even if some users said that their phone wasnt too hot but just hot The feeling of a person is always different and if they were outside or something like that or had a case then it also might not felt so hot but inside it could be very hot i had the same with my N4 once i had an intense gaming session with all kind of programs open. I think still like somebody said before it has to do something with TCON. I dont think with normal usage it gets like that.

And i wonder you flashed many times your G2 right and you now have the dorimanx kernel. And you dont have black lines right?

And i think that Heat is still the most explaining explanation.

I also read that by some people who are replacing screens also got black vertical lines with replacement screens when they replace it on the G2 and after some attempts its gone so i wonder or the TCON and the Display are in 2 pieces or just 1. It could also be that the cable maybe got affected by heat or by cold somehow idk that it isnt good anymore. But what i am wondering about is that almost everybody gets the black lines On the Right side and not like on left so something must be on the right of the cable then what causes it right\?:confused:

Btw i still want to know it for sure cause your message got my 100% to buy the g2 back to 75% ;p:rolleyes: So i still am not sure to buy it because of the black lines ehh...

But if you see all those things now from Panel detector Heat throttle etc i think this problem's cause gets to the light soon and we will know
[G2 General] aldaris565:
I had this same issue on a moto g... but instead of black.. they are white ones... around 6 - 7 on the right side...
[G2 General] Formhault:
I got the phone a week ago. So far, I think I flashed it less than 10 times (ROM, recovery, kernel).

No black lines so far... I'm hoping my phone is from a good batch :)

1. What is TCON?

2. Lines only on the right side of the screen -> re-read the OP (carefully!). And open all the links Compass Linux mentioned in there.

If you want to get one, make sure it's got warranty (unlike mine :( ). It's still a great phone!

Care to re-phrase that? :p
[G2 General] wulsic:
May i ask you what caused the lines exactly? and im sorry for your moto g it would be hell:(

[MENTION=4129455]Formhault[/MENTION] i read the OP and i know it from the right side but i when i am typing something i am in my Story lol xd sorry thati mayhave wrote it differently.

And my new rephrase

If you see the progress the G2 has achieved the last month with Automatic panel detector script, The Heat throttle thing from Dr87 etc... I think that we will find out soon maybe even this month or next week what could have caused the black lines. I hope you understand it now :)

[MENTION=4129455]Formhault[/MENTION] i dont want to spam the thread but i am going to buy the G2 without warranty i guess it saves me like 40-50 euro xd from that money i could have bought something else.

I also didnt expected that from a Moto G user but he now upgraded to the g2 so not a wrong upgrade from Low to high xD
[G2 General] Formhault:
Oh, right!

If my phone happens to get black lines (God forbid!), I'll know for sure it wasn't heat (unless <75 Celsius degrees is dangerous, meaning F*** YOU, LG) or impacts (I stopped dropping phones about two years ago, and I'll carry a Slim Armor case on the G2, so if small bumps = problems, then again, F*** YOU, LG).

---------- Post added at 01:34 AM ---------- Previous post was at 01:32 AM ----------

I really didn't expect to hear that from a Moto G user :(

But hey, no wonder it's low cost, heh? :silly:
[G2 General] aldaris565:
well the moto g came for free, was a promo on my country when I bought the g2... I've taken to the warranty and see what happens... and I'm 1000% it wasn't by the heat... the phone was always on stand by, I just turn it off for charging and the lines came out on the next boot.
[G2 General] Skizzy034:
Does att have a site to check how much time is left on the warranty?
[G2 General] wulsic:
Well can you guys also think of another cause for the lines? No aswer is dumb everything can help maybe.

Just like or i must choose then5 or just the g2 cause i am scared to hell of the blacklines but yh
[G2 General] aldaris565:
I would suggest the s5 prime... in my case with the g2 I've played NFS MW, Wild blood, dead trigger, walking dead.. all with a Bluetooth controller... and no black lines, even I've flashed a lot of roms while the phone was charging...

I guess only a few devices came with the problem but the warranty will change the screen for free so no worries.
[G2 General] wulsic:
I will then just buy the g2 and if i get stripes screw those stripes. I will also think. Will i buy the g2 without warranty for 220 or with for 260. But thankyou for your review and formhault it really makes me wanns buy the g2 for99% again. I also thought what now if there was an issue with the lines and lg fixed it. But maybe the people who bought the phone recently but also got the lines had received an old one which was given on the release to the providers or retailers. I will buy it next week or the week after :) again thankyou guys.

S5 prime nahh too expensive only for brand name and youre also paying for their expensive advertisements.

[MENTION=4405030]aldaris565[/MENTION] well the link doesnt work but it will be probably like 600 euro i guessandi only want to spend max 250 euro for a phone. And well i think the g2 is high enough for me else i will just buy a laptop lol. I hope you will have fun with your s5 prime but i aint really a fan of samsung only the s2 was the last model with good design for me with the phone itself and the ui from stock.
[G2 General] aldaris565:
Yeah I know but it has SD 805 QHD and Adreno 420.. I've already ordered one from here: www.ebay.com/itm?itemId=121373179591

And I'd suggest to buy it with the warranty.
[G2 General] citytrader:
Little offtopic: If I have to buy again the G2 I will do it without hesitation even with the risk of black lines, for the use I do to the phone, G2 is still the best phone in the market, better than G3 and much better than S5 (S5 has 3 times less color resolution than G2) the only down size of G2 is the crap GPS, only that.
[G2 General] hesaps1234h:
Should we mail to LG and inform about this situation?
[G2 General] aldaris565:
LG doesn't even care about it.
[G2 General] hesaps1234h:
I think they should. They are building up this device and giving 2 years warranty to users. And i guess if we pull the brightness slider to the %100 play heavy games like gta sa with high graphics it will happens too.
[G2 General] corrsea:
I would not let this issue put anyone off buying a G2.

It's unfortunate for anyone who has experienced it but most have had their devices replaced under warranty (unlike the sudden death syndrome that affected the galaxy S3)

Even if overheating turns out to be the cause, heat, in itself, is not a general issue with the phone. I've just reviewed 30 days of battery stats on my phone and the hottest it has ever got was 39.9. Even that was an exception as the normal range for me is 22 - 35 degrees.

I do agree with the poster that said the GPS is crap, but there are ways to improve it.

IMO this is the best phone I've owned and it's many advantages greatly outweigh is faults.
[G2 General] jesssiii:
Finally happened to me on VS980, dr87 twrp, flashing PA latest clean. Damn.
[G2 General] aldaris565:
PA is the one with most reports.. you should've never flashed it...

Here is the link http://www.ebay.com/itm/UNLOCKED-SA...1370215628?pt=Cell_Phones&hash=item1c423a84cc

I will test it and see because the regular s5 is not way better than the g2.
[G2 General] Compass Linux:
Your phone was probably at least half way to the black lines in my opinion, hence @dr87's twrp didn't help much. The damage was already done on a defective device is what I think.

Time to flash TOT to stock and send it in for warranty coverage (which I hope you have).

Are you reading this, LG? :fingers-crossed:

Compass.
[G2 General] rancur3p1c:
Thanks for the feedback guys staying away from this phone and compensating for small battery with opportunistic wireless charging on my Nexus 5
[G2 General] Skizzy034:
Anyone know how to check the remaining time on the warranty?
[G2 General] musashihatred:
it would depend where you had purchased the device though you could check your manufacturing date

[°_•|||]

G2
[G2 General] Formhault:
Here's another one : electricity that passes through the screen connector damages the connector, as it is not meant to be traversed by electric current :D :silly: :laugh:

---------- Post added at 10:36 AM ---------- Previous post was at 10:35 AM ----------

The issue is not with the battery temperature (that will never reach values that are too high). It is the CPU temperature that we're talking about, at that is the component which sits very close to the rest of electronics and could inflict damage to them if it gets too hot.
[G2 General] wulsic:
Formhault here is another one. Vibration is also in recovery and in every rom and caused a cable to become a bit loose. This is maybe a dump theory but who knows. Also why do people say that you get blacklines especially from PA? If so then we must investigate it. Or it is just in recovery,

[MENTION=4405030]aldaris565[/MENTION] 950 dollars? Warranty 119? Way to expensive ;0
[G2 General] Formhault:
Yeah. Another theory if, is true, whoever made the hardware deserves to be r*ped by a cactus.
[G2 General] kbkang:
what about damaged GPUs? IIRC the GPUs are inside the same chip as the CPU; if the CPU were to overheat even only for a few tenths of a second, it "could" damage the circuitry of the GPU hence the black lines. about the fact that they appear only or mostly on the right side, it "could" be that the parts of the GPU governing that side of the screen are the nearest to the CPU part of the chip thus the most subjected to the overheating damage...

just my .02$