# Black horizontal lines FIX - S7 Edge - Samsung Galaxy S7 Edge Questions and Answers

###### Black horizontal lines FIX ########
on low brightness the screen the screen shows black horizontal lines (4 lines)
here what i did and hope it work to on your device to
1. download the video , copy to phone (unzip the 7z)
2. let the video do the the magic for several hours
( My recovered after 28 hours )
or you can use an APK that does the same thing
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Hi, I'm having the above problem.
May I ask what's the cause of the lines and why running a video can resolve the issue?
Thanks!
czar22 said:
###### Black horizontal lines FIX ########
on low brightness the screen the screen shows black horizontal lines (4 lines)
here what i did and hope it work to on your device to
1. download the video , copy to phone (unzip the 7z)
2. let the video do the the magic for several hours
( My recovered after 28 hours )
or you can use an APK that does the same thing
Click to expand...
Click to collapse

If this will not fix it !!
Try Flicker Free kernel .it is on Xda

czar22 said:
If this will not fix it !!
Try Flicker Free kernel .it is on Xda
Click to expand...
Click to collapse
So it's the frequency/refresh rate that's causing the failure? But why running the video would cure it then?
But anyway, i'll try your method first then.
Feels like a disco in my room now......
Wish me luck!
Btw, should i use full or lowest or any brightness will do?

Nope. Didn't work. Looks like i better get it to service centre then.
Thanks anyway!

Mine cured itself after two week...service centre didn want repair because of trip knox

czar22 said:
###### Black horizontal lines FIX ########
on low brightness the screen the screen shows black horizontal lines (4 lines)
here what i did and hope it work to on your device to
1. download the video , copy to phone (unzip the 7z)
2. let the video do the the magic for several hours
( My recovered after 28 hours )
or you can use an APK that does the same thing
Click to expand...
Click to collapse
what percentage the brightness should be when running the video?

Lines dissapear
After 3 months with tgp kernel with pwm flicker free active the lines disappeared

Related

dead center... I've searched searched for a solution but haven found it-can you help?

Ok my screen works, alignment is whack because the CENTER of screen doesnt work. I have seen a few people have had same problem but saw no results that worked. so open invitation to those that are skilled.
KJAM with WM6
Problem: the exact center of the screen does not work, its about exactly 1 centimeter to each extreme. on screen alignment it takes about 10 tries to finally exit alignment mode, *i dont know if its tired of trying to align it, that it just gives up* but screen center still does not work. everything else is fine but it doesnt work.
Tested the problem: to see the exact affected area i went into notes with draw mode. i made tons of horizontal and vertical lines through the inner part of the screen to see which was th area that didnt work. and it looks like this.
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By tdk_025 at 2008-01-24
efforts to fix:
HKLM>drivers>touch panel>pressure threshold (couldnt find the folder)
Hard Reset
moved stylus around screen
soft reset
landscape & portrait mode
keyboard open & keyboard close
safe mode
synced & un synced
I think i have tried most of what i could guess and what i have read in related threads but no luck.
I haven't flashed the rom because i have a latest one and it was fine at first when i upgraded to WM6 until about a month later.
so i am in mexico right now and easy to say that wizard parts & wizards are hard to get here so i am thinking of getting a new screen all together from the US, so before i spend 40 dollars, i am asking for help to you guys.
I hope yall can help me. thanks.
your touch scren or digitalaizer is bad, you should remplace it.
it happend to me and had to change the digitalizer. on ebay there is a lot of chinese users that deliver arownd the world

Display,dpi or rom issue???

Hello everyone in recent days i have found a random black border kinda thing on my screen i have a samsung galaxy s4 GT-I9505 running pheonix rom,so these borders the black thing is it because of my display or the bezel,dpi or the rom or is it normal even your device has it pls help me out screenshot attached
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Normal it is.
Check build.prop for dpi. It ahould be 480
"If someone helps, never forget to hit thanks ? "
DeepankarS said:
Normal it is.
Check build.prop for dpi. It ahould be 480
"If someone helps, never forget to hit thanks ? "
Click to expand...
Click to collapse
The corners on the display im talking about all the four sides jts black for a lil part why is it? You have the same? [emoji27]
Sulaimanshariff said:
The corners on the display im talking about all the four sides jts black for a lil part why is it? You have the same? [emoji27]
Click to expand...
Click to collapse
Are you by any chance refering to the button shadows?
I cammot see any difference.
Screenshots from my S2 and S5. (S4 running CM so i dont have this menu)
https://www.dropbox.com/sh/jrhms9pnqlypcur/AAAiEVfwXcoLa5bi9Y4etE0na?dl=0
@Sulaimanshariff
"If someone helps, never forget to hit thanks ? "
DeepankarS said:
Are you by any chance refering to the button shadows?
I cammot see any difference.
Screenshots from my S2 and S5. (S4 running CM so i dont have this menu)
"If someone helps, never forget to hit thanks ? "
Click to expand...
Click to collapse
Nope not button shadows i dont know wt button shadows
your talkin about i have posted testscreen as the background is white so you can easily see the black corners,edges around that white background that black edges or corners are with every app so u have too pls watch the screenshot carefully

Wierd Display/Screen Problem After Upgrade To 5.1.1 [please help]

hi i have a galaxy E7 E700h and today upgarde it from 4.4 to 5.1.1
but after that, i have a problem with my screen
i go to TEST Section in Samsung by *#0*# and see my screen in blue and green and it still there ((( so what happend?? i just flash a new rom so how this bring a damage to my screen??
i do even a factory reset but is still there . it is everywhere even in ِDownloadMode or camera or games or pictures . its fix just in black screen.. so what shoud i do ?
HOW IS POSSIBLE THAT FLASHING A NEW ROM DAMAGE TO SCREEN HARDWARE ? :|
My screen is like this :
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That happens on screens with technology SuperAmoled are pixels burned to maintain the same image a long time, fortunately the solution is quite simple, download the " AMOLED Burn -in Fixer" app from Google Play, then open it you give click option invert colors from accessibility and give it to begin test , so leave it for 30-40 minutes, you can repeat the operation on a daily basis until the pixels back to normal , Greetings !
StarkXVIII said:
That happens on screens with technology SuperAmoled are pixels burned to maintain the same image a long time, fortunately the solution is quite simple, download the " AMOLED Burn -in Fixer" app from Google Play, then open it you give click option invert colors from accessibility and give it to begin test , so leave it for 30-40 minutes, you can repeat the operation on a daily basis until the pixels back to normal , Greetings !
Click to expand...
Click to collapse
thank you for your help ... its cool because i think this is a new problem ,..i test the app and after invet display i keep it on for 30 minutes but its not fixed so this mean my screen in damaged for ever? or just need more time?
xperia_sp_2014 said:
thank you for your help ... its cool because i think this is a new problem ,..i test the app and after invet display i keep it on for 30 minutes but its not fixed so this mean my screen in damaged for ever? or just need more time?
Click to expand...
Click to collapse
Just you need more time, because every time you make the process , your home screen will be the same and the pixels will continue " keeping " the images on the screen , it is an inevitable problem in Amoled screens , greetings !

Please could someone help me. This bug has been there for about 3 months now

I have reset my phone a bunch of times and yet this persists. I can't explain it but the background of some other apps shows on my normal black backgrounds.
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NitinSaidha said:
I have reset my phone a bunch of times and yet this persists. I can't explain it but the background of some other apps shows on my normal black backgrounds.
Click to expand...
Click to collapse
A screenshot would be nice.
If you want help, but can't explain, we really wouldn't be able to help you.
It's screen burn..visit nearby service center and change ur display
Install bluelight filter app from playstore and open it and set black color and transparency to 5% . Your issue should gone in 5 to 10 min for forever.
djraje said:
Install bluelight filter app from playstore and open it and set black color and transparency to 5% . Your issue should gone in 5 to 10 min for forever.
Click to expand...
Click to collapse
Can u please give a link to the bluelight filter app mentioned above.
Thanks
https://play.google.com/store/apps/details?id=jp.ne.hardyinfinity.bluelightfilter.free
Here u go but one thing remember when u install apk or giving permission to app just disable it from status bar... After done again enable from status bar
I'm facing the same issue . background of some other app shows up on the present viewable screen
Any solution ?
Cathy Juavnce said:
I'm facing the same issue . background of some other app shows up on the present viewable screen
Any solution ?
Click to expand...
Click to collapse
Replace your phone's screen.
It is covered under warranty.
I had sent the screenshots. Also,
I have rooted my phone so it's not under warranty anymore, if the problem persists I'll untoot, lock bootloader and then go to the service center.
Yeah, if your phone is under warranty, you could easily change the display with the service center guys. It's free of cost.

Colour rendering issues

Hello,
I have a problem with my Axon 7 , it is not rendering red anymore. When I start the phone it is showing the colours correctly and just until the startup page with the collage is about to change to home page all the red is changed in muddy brown and stay like this. See attached pics. Does anyone encountered the same problem?
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nelulepra said:
Hello,
I have a problem with my Axon 7 , it is not rendering red anymore. When I start the phone it is showing the colours correctly and just until the startup page with the collage is about to change to home page all the red is changed in muddy brown and stay like this. See attached pics. Does anyone encountered the same problem?
Click to expand...
Click to collapse
did you do a hard reset? Probably you could change the "color modes" over at screen settings, see if that changes. if that's not it look on developer options if there's an sRGB option and change it.
maybe downgrade to Marshmallow if you are in Nougat and then upgrade again? If you have an unlocked BL you could also download a full EDL image from the guys over 4PDA and flash it with MiFlash
Weirdest thing I heard about...
Your image seems to be broken so it's hard to tell what the issue is. But judging by the description do you have the Night Light setting enabled? Check first by going to
Settings -> Display -> Night Light (9th option down)
See if that's enabled or set to turn on at a certain time. This feature changes the color of your screen to an amber effect which might be what you're seeing? Sorry if this isn't related to your problem. You may want to re-upload your picture showing the issue.
I don't have night mode on my phone. It is a G version and now have the B04 on it. But the problems started with B02 so it is not the last update. I cannot attach pics but all the red colours are a muddy brown now.
nelulepra said:
I don't have night mode on my phone. It is a G version and now have the B04 on it. But the problems started with B02 so it is not the last update. I cannot attach pics but all the red colours are a muddy brown now.
Click to expand...
Click to collapse
Then do what I told you, it seems that downgrading to Marshmallow actually wipes everything.
I have done a hard reset and everything is just fine now.

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