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Help please, what are these horizontal black lines?

They only just appeared today, randomly when I took my phone out of my pocket. I've restarted the phone to no avail, and am panicking because I dont know where to begin..can anyone diagnose my problem?

Looks like dead pixels, but the image isn't really clear enough.
Take a screenshot with some app.
If you see that in the screenshot, then reflash your firmware & ROM or flash an RUU.
If you don't see it in the screenshot, then it's a hardware problem.

Thanks, I took a screenshot and it's not a part of it. The lines keep getting bigger and bigger!

Sounds like it needs to go for repair. Is it under warente? Best of luck to you!
Sent from my HTC Sensation 4G using xda premium

Horizontal Black Lines
dragonnson said:
They only just appeared today, randomly when I took my phone out of my pocket. I've restarted the phone to no avail, and am panicking because I dont know where to begin..can anyone diagnose my problem?
Click to expand...
Click to collapse
I too have this issue. It was present from the moment I powered the unit on. I continued with the setup to see if I could adjust the screen or maybe an update might fix it. But sadly no dice. I'm calling Google tonight to see if they can send me another unit or repair this one.

Had the same problem earlier, when i dropped the phone accidentally.
Observation: It gets darker and grows when the phone heats up, and lighter (almost cyan blue) when the phone cools down for a significant period of time with the screen off.
i had to keep the phone near an air conditioner vent for a few hours with the phone turned off for it to disappear.
once the lines disappear completely they dont return back, unless if you drop them again (which is what i did a few days back again.. and the stupid lines are back )
If you have any other ways in which you can get it resolved pls share with us.
Cheers,
Alan

Screen randomly turns off but phone still on, backlight often stays on

Hey guys, i'll try to explain the situation as best i can below, hopefully someone can work out what is wrong.
My phone is about 16 months old. About 2 months ago i dropped it twice within the space of a couple weeks. There were a few cracks along the screen, however it wasn't very noticeable and i wasn't going to bother having it fixed. The problem started a couple of weeks ago when i went to grab it out of my pocket, however i found out the screen was black and it wouldn't turn on. I don't really know how to describe it but it was acting very strange...
- The screen would have white/gray bars all over it then turn off, then it would do the same with very thin vertical lines that were white/gray/other colours...
- When i get the screen on, it generally turns off again within 30 seconds, however it can stay on for a few minutes.
- If the screen is on and i press the lock button, it almost certainly won't come back on.
- Restarting the phone or holding the power and volume button nearly always gets the screen to come back on. It often then restarts but turns off again shortly after.
- The phone is otherwise still working when the screen goes off; the notification light stays on and i hear messages etc coming through
- The backlight often stays lit, revealing a gray screen opposed from total black. Sometimes it does not stay lit however.
- When the screen came on it was often unresponsive to touch
I had the screen replaced yesterday by a phone repair shop and the phone is still not right. I have factory reset the phone and also wiped the partition cache. Other than that it is still not working. IT seems to be working better... The screen always seems responsive to touch when it is on, and it doesn't seem to be turning off as often. It generally starts up and works fine when i start up by holding the power button and down volume button together... However even still it sometimes just flashes up with a few thick white/gray and black lines on the screen..
Does anyone know what can be causing this and how i can resolve it? If you need any more information please let me know and i will try provide it. I could try get some pictures of what the screen is doing when i finish work. Thanks guys, i appreciate any input.
EDIT: I managed to get a pic of what i mean by the thin vertical lines all over the screen. This just appeared when i tried to restart the phone after it the screen had once again stopped working. The imgur link is gIFMGD6

Anyone have any ideas?

Hey, did you ever figure this problem out? My phone just started doing the same thing. Can't find much info about it.

angrysammich said:
Hey, did you ever figure this problem out? My phone just started doing the same thing. Can't find much info about it.
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Click to collapse
Yeah, i had the screen fixed hoping it would fix it, however that didn't work. Turns out it was the motherboard, don't know what was wrong with it in particular other than it was simply going faulty. Had someone replace the motherboard on it for $50 and have had zero problems since! Hope that helps you.

Thanks for the response. I tried replacing the screen too with no luck. Unfortunately the same place that replaced the screen said it would cost $400 to replace the motherboard!!! The phone cost less than that so it looks like I'm gonna buy a new one.
ClangaBanga said:
Yeah, i had the screen fixed hoping it would fix it, however that didn't work. Turns out it was the motherboard, don't know what was wrong with it in particular other than it was simply going faulty. Had someone replace the motherboard on it for $50 and have had zero problems since! Hope that helps you.
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Click to collapse

Nexus 5 water damage - screen's all black - motherboard related?

Hello guys,**
Well few days ago I accidentally dropped my Nexus 5 in a glass of water for just 1 sec. So I immediately switched it off and wait a bit to let dry then restarted it, and all seemed to work fine. But just some days later and up to now the phone boots up all fine as usual to the lock screen, and from there I can pull down the notification bar (and navigate through it, activate/deactivate wifi, etc..) but when I unlock it to get to the home screen it becomes all back and nothing appears on the screen even though the phone is still on.*
It's really confusing and weird. When I call the phone it rings (so no signal or sound problem) but I can't still access the screen to take the call as it's all back and unresponsive.
Following some suggestions I disassembled the phone and cleaned it dry but same results again! So now I think the problem is somehow related to the motherboard, coz as you might notice on some of the pictures attached, it seems that some plastic parts have melt down to cover other smaller parts. Anyway guys,*I'm just wondering if some of you guys had experienced something like that and if you were luckier*to find a solution or any directives that could help. Or you even think that's a motherboard problem like, do you know any ways to fix that o buy a new one somewhere??
PLEASE!!

Sorry apparently, I can't publish links until I get like 10 posts or plus..
But anyway guys, I'd really appreciate your help.

Why did you power it on and short circuit it on purpose for??

Bump

@SekouCheikh

Maybe it's a coincidence that you dropped it in water and this happened a few days later. Once in a blue moon mine does something similar to this (although not usually as start up only after lots of use), but I think it's related to an app or xposed. I only notice it after installing a bunch of crap again. Maybe try a factory reset (do it though the computer) just to see if it is somehow not hardware related? That's what I would try first.

Help please

Ttt

Wait... Are you seriously posting from 2 different accounts??
<...>
First, simply try to factory reset or flash a new rom. There is not enough evidence to be sure it's a hardware problem, it could just as well be a coincidence that it started happening just now.

-SmOgER said:
Wait... Are you seriously posting from 2 different accounts??
<...>
First, simply try to factory reset or flash a new rom. There is not enough evidence to be sure it's a hardware problem, it could just as well be a coincidence that it started happening just now.
Click to expand...
Click to collapse
No, I just like to help

Help Op solve the problem please

Ttt

S7 Edge freezing then restarting

Hi all,
Hope somebody can shed some light on this issue I'm facing. This is my first ever post. All your input will be very much appreciated.
I purchased this S7 Edge DUOS (Dual sim version) around 8 weeks ago. Around 3 weeks into my ownership, I've started facing a persistent issue which I've tried to resolve with the best of my knowledge but unfortunately I haven't succeeded.
Randomly the phone will freeze for around 5 to 10 seconds and then restart. Sometimes a pixelated set of lines would appear across the screen when it freezes, a lot of the times they are green.
When the phone does reboot and I return back to the main screen, everything is back to normal and the apps I was using remain opened in the background, so it's not a proper reboot.
There is no such pattern on when this happens, it happens while being used on any app and a lot of the times it reboots while the phone is in my pocket. The only reason I realise is because the phone will be on the startup lock screen.
Battery life seems okay, nothing seems to be draining the battery. Although sometimes it does get hot and drains it temporarily.
I have cleared cache partition, done a factory reset and deleted third party apps. Nothing has resolved the issue. When I did the factory reset, the phone didn't crash for a good few days then started doing it again.
I just cannot work out what it may be and it's getting really frustrating!
I really hope somebody can shed some light on this, I am trying to avoid going down the return route.
Many Thanks in advance for all your help.
Hassan

Hi my mate had the exact taste problem with his s7 Edge single dim version, it woody of freeze and reboot and pixilated just as u explained and turned out his phone his cpu overheated and this was the result of it, he then returned it to Samsung and he received a brand new handset so best is to maybe return it as it sounds to be a faulty handset.
Sent from my SM-G935F using Tapatalk

Not The Black Screen Of Death but it involves a Black Screen HELPPPP!!!

I just got my Note 10 PLus about 2 Months ago and ever since I have been noticing its doing something weird and it happens randomly and maybe someone with more knowledge can help me out. The phone is sock I havent touched anything on it... While scrolling or either watching a video embedded on a webpage the phone looks as if its doing a transition to load another page, where it goes black for a quick second and either restarts me where I left off or it pauses video. Can anyone help me out? Ive tried almost every setting I can think of

turbocivic803 said:
I just got my Note 10 PLus about 2 Months ago and ever since I have been noticing its doing something weird and it happens randomly and maybe someone with more knowledge can help me out. The phone is sock I havent touched anything on it... While scrolling or either watching a video embedded on a webpage the phone looks as if its doing a transition to load another page, where it goes black for a quick second and either restarts me where I left off or it pauses video. Can anyone help me out? Ive tried almost every setting I can think of
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Click to collapse
I think its an app you probably installed recently and its about to load an ad or something.
You can try to factory reset your device I thing it would help a lot if it bothers you or you can take your phone to a nearby Samsung store to have your device checked.
If you need any other help tell me I would be happy to help and tell me if the reset has worked for you.