Develop Bugs

Two Defective Screens in a row. And I bet you have the same issue.

I'm calling all the GN owners to check your screen to see if you could duplicate the same issue I have on my TWO GNs.
Step:
1. Manually set your screen brightness to lowest brightness.
2. Go to a complete dark environment like in your closet or test this at night with all the ambient lights off. Again in a COMPLETE DARK ENVIRONMENT, this is crucial to duplicate the issue.
3. turn on the Camera app and look at the screen.
After your eyes adjusted to the darkness, you will see a bunch of nasty scattered pixel blocks. It's like pouring inks on your screen.
This pic says it all. From forum member sunnyshirz from this post:
http://forum.xda-developers.com/showthread.php?t=1353324
View attachment 803916
Both my phones ordered from expansys-USA and Negri Electronics have the same issue.

I do this about 7 times a day, it has to be a common use case right?
Seriously, do you see the insanity of recreating this non-problem? Just think about it.
Sent from my Galaxy Nexus using Tapatalk

The screen image attached to the OP of this thread also suffers from the same issue:
http://forum.xda-developers.com/showthread.php?t=1366878&highlight=test
How many more of you have this?

I haven't checked mine yet. But I don't really use my phone in the closet with the lights off, so for me, and how I use my phone, my phone kicks ass
I did use it on lowest setting with light out in bed last night for a few mins, and saw no dots. So it probably has something to do with the camera and what it is seeing in total darkness. Since it is not an infared camarea, I see no problems with that either

I tried this and couldnt see spots, mine does have the right edge slightly tinted issue though. All amoleds have variations theres over 200 pages in the galaxy s2 forum.

Luxferro said:
I haven't checked mine yet. But I don't really use my phone in the closet with the lights off, so for me, and how I use my phone, my phone kicks ass
I did use it on lowest setting with light out in bed last night for a few mins, and saw no dots. So it probably has something to do with the camera and what it is seeing in total darkness. Since it is not an infared camarea, I see no problems with that either
Click to expand...
Click to collapse
If you set your wallpaper to black/grey you will see it at your home screen.
I spotted this issue when I was playing with my phone before bed, it is definitely not a Camera app issue, it's something hardware related. Like I said before your eyes need to adjust to the darkness in order for you to see those dots.
This is pretty annoying if you use your phone at night with all lights off.

[hfm] said:
I do this about 7 times a day, it has to be a common use case right?
Seriously, do you see the insanity of recreating this non-problem? Just think about it.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
It's true that during normal usage in daytime you cannot see them, but I use my phone in dark environments a lot so this is crucial to me.

assisterah said:
It's true that during normal usage in daytime you cannot see them, but I use my phone in dark environments a lot so this is crucial to me.
Click to expand...
Click to collapse
I have used my phone in the dark a bit. Kindle app set on black bg with brightness turned all the way down is the largest. I always have the brightness all the way down when using phone at night in bed so not to bother the wife. Have seen zero issues.
Sent from my Galaxy Nexus using Tapatalk

[hfm] said:
I have used my phone in the dark a bit. Kindle app set on black bg with brightness turned all the way down is the largest. I always have the brightness all the way down when using phone at night in bed so not to bother the wife. Have seen zero issues.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Yeah, I was using google books app last night in bed w/ no lights, set to night mode (black background). Saw nothing as well.

Check this site: http://fiddle.jshell.net/qfxsc/1/show/
Its the critical colour
My first nexus had many stripes from the bottom to the top but my second one is much better.

Sounds like a classic case of someone looking for a problem. If a person has to take all the steps the OP described to recreate a problem, then it isn't a problem. Nothing to see here.

mysterioustko said:
Sounds like a classic case of someone looking for a problem. If a person has to take all the steps the OP described to recreate a problem, then it isn't a problem. Nothing to see here.
Click to expand...
Click to collapse
This is correct. And I think an easy solution would be to put the brightness at 15-20% instead of the lowest so you don't see whatever it is you see

try installing dead pixel from the market then check it that way. My is solid black, no bleeds at all.
Sent from my Galaxy Nexus using xda premium

[hfm] said:
I do this about 7 times a day, it has to be a common use case right?
Seriously, do you see the insanity of recreating this non-problem? Just think about it.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
This.
You can pretty much obsess over and examine any product long enough until the following realization occurs:
OMGDEFECTIEVE!!
It's really unfortunate that the OP cost the retailer/Samsung money going through a few phones for an obsessive compulsive microscope discovery about a real non-issue. Results in higher prices for everyone.
Ridiculous.

I think here's how you get to the bottom of this. Go online and google search absolute black. Save the 7th image on your phone. Then go to the saved image in your gallery and zoom in on the top left corner of the picture while in a completely dark room. If it looks weird, then your phone may have a problem, but if not, then STOP LOOKING FOR THINGS TO HATE.
This is a great phone, why try to ruin that. My guess is that the issue you're seeing is because of the camera. It's horrible in lowlight settings.

assisterah said:
3. turn on the Camera app and look at the screen.
Click to expand...
Click to collapse
I don't have a GN yet so can't replicate your method, but if it happens when you use the camera app, don't you think it could have something to do with the camera? The camera gain will be all the way up in total darkness which will produce weird pixelations.
If you're trying to get solid black on the screen to evaluate the display, I am sure there's an app that can do that. Or simply make a web page with all black.
[hfm] said:
I do this about 7 times a day, it has to be a common use case right?
Click to expand...
Click to collapse
Hah!

Same thing with my gsalaxy s2. There are also other "strange" effects on gs2 screen at lowest levels. I think I saw something like that at note subforum. So I guess it is more or less normal for every amoled screen.
I can reproducethis issue, but I never experinced it in day to day usage. It is no problem for me.

Ok guys. Thanks for all the negative comments.
If your phone has no problem then good for you. I couldn't stand for this issue because I can notice it fairly easy in low brightness condition, I have tried to increase the brightness to around 40% and I can still see it. And again this is not a camera caused problem. I first noticed this when I was using Google Music to play some songs at night. The problem pretty much exists under any pure dark background.
Please look at the pic I posted, Does this look like "normal" to you guys if you were in my shoes?

This is an AMOLED issue. Just keep the screen step above minimum and its completely fine. Phone is not faulty, that's how that screen works. AMOLED is also more noisy on lower brightness, that's not a faulty screen.

I don't have this issue. My screen looks great and is from Expansys. What do I win? Your phone does look pretty bad though, maybe exchange it again?

[Q] Does ANYTHING near-black look purple on your gnex at ANY brightness?

Some people are saying that my purple screen issues documented here:
Matt08642 said:
So I am on my second Galaxy Nexus, and I'm on my way to a third tomorrow.
My first one was absolutely awful, with blacks looking bright purple (Phone 1: http://i.imgur.com/2bjUZ.jpg ) and now OTHER elements looking purple (Phone 2: http://i.imgur.com/1EI0V.jpg ). That's not all. My first one was somewhat free of screen banding, but this one is riddled with it in every menu: http://i.imgur.com/j2oxB.jpg
How common are these issues? I'm getting kinda fed up here.
Click to expand...
Click to collapse
Are nothing more than standard AMOLED behaviour. They are saying that terrible colors like I am experiencing are normal if the phone is dim.
Is this true? Does anyone have ANY color issues at ANY brightness?

Well... I don't have ANY issues at ANY brightness fyi.

anton2009 said:
Well... I don't have ANY issues at ANY brightness fyi.
Click to expand...
Click to collapse
Good to know there are some phones out there that look great all the time
I'm not leaving the store tomorrow until I am certain the screen is perfect!

When you look at the phone in the store tomorrow, and you go to settings, don't get scared away by what appears to be "banding" in the background image. It' just a poor quality image google has chosen to use as the background. See?

anton2009 said:
When you look at the phone in the store tomorrow, and you go to settings, don't get scared away by what appears to be "banding" in the background image. It' just a poor quality image google has chosen to use as the background. See?
Click to expand...
Click to collapse
Wow, why the hell would they use that AWFUL image?
Tomorrow I'll mostly just be looking for purple colors on low brightness.
EDIT: Here's a new picture showing that the screen is still purple http://i.imgur.com/uaRwP.jpg

Wauw that looks bad. I'm currently struggling with a grainy (gray) screen, but looking at other nexuses that seems normal. On light i can however see darker spots and lines on black screens (including boots and black images) but seeing other topics crawled with the same issue I don't put much trust in a device without it...
Sent from my Galaxy Nexus using XDA

amonfog said:
Wauw that looks bad. I'm currently struggling with a grainy (gray) screen, but looking at other nexuses that seems normal. On light i can however see darker spots and lines on black screens (including boots and black images) but seeing other topics crawled with the same issue I don't put much trust in a device without it...
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Oddly enough, neither of my Nexus' have had the grainy screen problem, just this discoloration

I received my 2nd Nexus today after the firsts' volume buttons stopped working. The new one has purple where black used to be, like yours, but doesn't make the experience any worse. However, when I pull the notifications area down on low brightness, the screen dims further - does this happen on yours? It's quite annoying...

Mine is okay. Not perfect but okay. There is still a little bit of purple (not that extreme like uours) but after a few days you barely notice it
Sent from my Galaxy Nexus using XDA

3ddyz said:
I received my 2nd Nexus today after the firsts' volume buttons stopped working. The new one has purple where black used to be, like yours, but doesn't make the experience any worse. However, when I pull the notifications area down on low brightness, the screen dims further - does this happen on yours? It's quite annoying...
Click to expand...
Click to collapse
on low brightness the notification tray is almost an opaque black

Same here but top bar gets even darker when notifications area is pulled down, even when brightness is set to 0. Whites are a LOT better tho.
Edit: just noticed that when taking photos, the brightness of whats being photographed affects the screens brightness. Also, top half of pages on tapatalk are a lot brighter than the bottom halves, it's strange and quite annoying once you notice it...
Sent from my Galaxy Nexus using Tapatalk

"True" Blacks Smearing/Lagging behind Display Issue

I've notice the screen will smear/lag behind while displaying "true" black (pixels are off) areas of the screen in fast motion (pictures, backgrounds, etc...). I'm sure this is a common problem with this display type as I've read similar things before (purple or black), but wanted to make sure all is well on my expensive new toy. It seems to happen more when the brightness is turned down, but it can also be noticed heavily on gradient backgrounds while scrolling left/right on the home screen. Turning up the brightness does resolve the issue for the most part (you can still see it, but it goes away much quicker), but why is it so apparent on this display versus others (Galaxy S5)? Maybe having many more pixels to flip on and off in the affected area is the cause due to the phone having a 2k display versus the 1080p display of the Galaxy S5. Anyone else experiencing this issue?

I have this issue as well. I have not seen anymore information on this issue anywhere. Have you heard or seen anymore about this?

Yep. I too have the exact same issue. I wonder what the consequences will be when using thw Gear VR with our Note 4... probably weird smushy images I'm guessing

I've had this issue as well. I was on a Plane at night watching Dark Knight Rises. I have auto brightness on so it dims in lower lighting but in that movie there's a lot of dark scenes and you can def see the lag with the pixels during fighting scenes and fast movement.
abystus said:
I've notice the screen will smear/lag behind while displaying "true" black (pixels are off) areas of the screen in fast motion (pictures, backgrounds, etc...). I'm sure this is a common problem with this display type as I've read similar things before (purple or black), but wanted to make sure all is well on my expensive new toy. It seems to happen more when the brightness is turned down, but it can also be noticed heavily on gradient backgrounds while scrolling left/right on the home screen. Turning up the brightness does resolve the issue for the most part (you can still see it, but it goes away much quicker), but why is it so apparent on this display versus others (Galaxy S5)? Maybe having many more pixels to flip on and off in the affected area is the cause due to the phone having a 2k display versus the 1080p display of the Galaxy S5. Anyone else experiencing this issue?
Click to expand...
Click to collapse

i am having this issue.
on the european note 4
i have no idea what to do and i dont want to visit service on the holiday season..... :crying:

Mine does this also. Only when the brightness is extremely low. I think it has something to do with the pixels being "lazy" when the brightness is low. It would be a drawback that comes naturally from the benefit we get with OLED.
EDIT: To sum it up, nothing is wrong, it's natural, just turn up your brightness when it is critical to not have the smearing.

dragunbayne said:
Mine does this also. Only when the brightness is extremely low. I think it has something to do with the pixels being "lazy" when the brightness is low. It would be a drawback that comes naturally from the benefit we get with OLED.
EDIT: To sum it up, nothing is wrong, it's natural, just turn up your brightness when it is critical to not have the smearing.
Click to expand...
Click to collapse
thank you so much for the relief.
that is what i undrestood too (from reading about Galaxy S4s with this issue and also Lumias)
But i really freaked out when i first mentioned this on my phone! and on the idea of possible service visit

fotisg24 said:
thank you so much for the relief.
that is what i undrestood too (from reading about Galaxy S4s with this issue and also Lumias)
But i really freaked out when i first mentioned this on my phone! and on the idea of possible service visit
Click to expand...
Click to collapse
No problem. Glad I could help out. This is my first OLED screen to be honest, but I am pretty familiar with the technology.

dragunbayne said:
No problem. Glad I could help out. This is my first OLED screen to be honest, but I am pretty familiar with the technology.
Click to expand...
Click to collapse
Word. I only noticed it in low brightness levels so I'm not worried. At least blacks are actually black, instead of some purple-ish weird color they had back in the first Note.

hyukki said:
Word. I only noticed it in low brightness levels so I'm not worried. At least blacks are actually black, instead of some purple-ish weird color they had back in the first Note.
Click to expand...
Click to collapse
The poor color reproduction is the exact reason this is my first OLED screen. They've finally got it right.

dragunbayne said:
Mine does this also. Only when the brightness is extremely low. I think it has something to do with the pixels being "lazy" when the brightness is low. It would be a drawback that comes naturally from the benefit we get with OLED.
EDIT: To sum it up, nothing is wrong, it's natural, just turn up your brightness when it is critical to not have the smearing.
Click to expand...
Click to collapse
turning my brightness to max doesn't help mine still has it :|

kamranhaghighi said:
turning my brightness to max doesn't help mine still has it :|
Click to expand...
Click to collapse
Is it just some minor smearing while scrolling? I'm pretty sure most if not all devices I have used have this a little when scrolling quickly.

dragunbayne said:
Is it just some minor smearing while scrolling? I'm pretty sure most if not all devices I have used have this a little when scrolling quickly.
Click to expand...
Click to collapse
its an 1 inch smudge while i'm in the gallery, or 0.2inch smudge while viewing movies (POC: On stranger's tide for example)
haven't noticed it in any games other than minecraft(clouds go purple) ! (i don't play it, touch controls act weird on my note)

Screen Problem

Hello, I've noticed that when I use my phone in night mode I can see green areas on the screen. Are there other people in my case?

No on mine so far. Black is black no greenish.

is see this too sometimes esp at night when its dark in the room with no other lights - in the day when its brighter is not visible
it does seem to be an issue with some backgrounds as i noticed in apps where the background is black (not dark grey or greysh) this isnt visible
so not sure whats going on - but i didnt had this issue with the s10 .....

tim2london said:
is see this too sometimes esp at night when its dark in the room with no other lights - in the day when its brighter is not visible
it does seem to be an issue with some backgrounds as i noticed in apps where the background is black (not dark grey or greysh) this isnt visible
so not sure whats going on - but i didnt had this issue with the s10 .....
Click to expand...
Click to collapse
Yes, I have the same problem, it comes from the screen according to what I read on some forums. Some OLED screen have problems. I think I'm going to get it exchanged.

no issues so far with mine s20+ (exynos variant), however if i were you i would seek to get replacement

slabs?

tim2london said:
slabs?
Click to expand...
Click to collapse
Screen sorry ^^

ok but how do you explain that its only visible sometimes and then sometimes is not?
and is only showing on grey backgrounds etc
like now i have the phone in my hand and is looking ok
the best place to test is in the samsung daily or SMS app - the top part of the app thats meant to be black was sometimes showing more like greyish - now is proper black again?
like i said it seems to be dependent on the ambient light - i wouldnt want to replace the phone if its not an actual issue esp since it took me a whole day to get my stuff transferred and setup

tim2london said:
ok but how do you explain that its only visible sometimes and then sometimes is not?
and is only showing on grey backgrounds etc
like now i have the phone in my hand and is looking ok
the best place to test is in the samsung daily or SMS app - the top part of the app thats meant to be black was sometimes showing more like greyish - now is proper black again?
like i said it seems to be dependent on the ambient light - i wouldnt want to replace the phone if its not an actual issue esp since it took me a whole day to get my stuff transferred and setup
Click to expand...
Click to collapse
Oled is known for reduced quality the lower brightness you go.
But all units will have varied levels of tints etc

In my case..

Unfortunately, yes. Also, it is more noticeable at 120Hz.
There is a thread about that in the Ultra section:
https://forum.xda-developers.com/galaxy-s20-ultra/help/green-tint-dark-background-low-t4065621
I also tried to get people with that problem in the S20+ section:
https://forum.xda-developers.com/galaxy-s20-plus/help/s20-ultra-oled-bad-uniformity-bright-t4067051
It is rather horrible and i noticed it right away the first time I used it in the dark. I think it can not really be fixed in Software, but it can be probably made less noticeable, as 120Hz is making it worse.
I wrote an 'email to the CEO' about that here:
https://www.samsung.com/uk/info/cont...email-the-ceo/ (example: UK)

If its same as below thread...Welcome to OLED!
Colour blending (blacks) problem
https://forum.xda-developers.com/galaxy-s9-plus/help/colour-blending-blacks-problem-t3765385
Had this on my S9+ and S10. Nothing can be done about it.

Using OLED since 2010. Starting with Symbian Nokias, Windows Phone Nokias and switching over with the S8+ - OLED only.
I suppose - never had a display that bad in this regard. At least never noticed it that bad right away. The upper right corner is almost always showing a green tint.
But I am glad, if it is not too widespread - then the S20+ I ordered will probably be fine.

in your case what?

Pardon me?

kaktus_78 said:
In my case..
Click to expand...
Click to collapse
corwin_amber said:
Pardon me?
Click to expand...
Click to collapse
sorry it was for an earlier post with a screenshot of a call in russian

Hi,
Just attached a picture of my screen with adaptive brightness with low light with screen at 120Hz.
At 60Hz the screen is even, at least almost even.
What is your opinion?
Thank you in advance.

Report it to Samsung, probably get it exchanged, if possible and it really bugs you.
I gave back the ultra because it was too much green tint. The plus has it as well, not as bad as the ultra.

no.one.writeme said:
Hi,
Just attached a picture of my screen with adaptive brightness with low light with screen at 120Hz.
At 60Hz the screen is even, at least almost even.
What is your opinion?
Thank you in advance.
Click to expand...
Click to collapse
Bottom right corner is way darker and reddish.

corwin_amber said:
Report it to Samsung, probably get it exchanged, if possible and it really bugs you.
I gave back the ultra because it was too much green tint. The plus has it as well, not as bad as the ultra.
Click to expand...
Click to collapse
Hi,
Return it and seller ordered another device to replace this one. Hope that the new device is ok
Best regards.

Question Red Magic 8 Pro selfie display

I got my Red Magic 8 Pro EU 256gb 12gb today.
While I was testing it I noticed the selfie camera display shows up in alot of situations, like on grey situations the display turns green at low and max brightness.
Anyone with the same problem?

Hi!
you reach out to the manufacturer or retailer to report the issue and see if it can be resolved. If the device is still under warranty, they may be able to repair or replace it for you.

Same issue here, but looks more like a software issue to me.
When you touch the screen, the camera overlaying part flickers and settles after a second to the color it should have. Perhaps they just need to speed up this process.
If on the other hand you mean a permanent mismatch, they just need to recalibrate.
Either way it is fixable by just software.

This is just some examples, that display covering the selfie shows up alot for me.

Okay i see, yours is quite more visible than mine. Mine is only really visible in dark gray background, but does not have this green tone to it.

Mine also has it although it's just visible when the brightness is from 0 to 15, and I think it's perfectly normal.
Green tint is more visible when the display is set to 120hz, and lightens or "flickers" when idle because it switches to 60hz to lessen power consumption.

Dogan_M95 said:
Same issue here, but looks more like a software issue to me.
When you touch the screen, the camera overlaying part flickers and settles after a second to the color it should have. Perhaps they just need to speed up this process.
If on the other hand you mean a permanent mismatch, they just need to recalibrate.
Either way it is fixable by just software.
Click to expand...
Click to collapse
The grint tint is more visible on higher refresh rate. It "flickers" because once the display is idle, it switches to 60hz to save battery.

I am starting to be glad that I missed the first shipment... as days pass by more and more issues come up with this phone.
First this display issue that the camera is visible and in another thread overheating issue.
Reviewers said that the camera is not visible during normal usage and only in really heavy sunligh from the side and they showed 97% stability in 3DMark.... both have been disproved by users feedback here on XDA.

fejerm said:
I am starting to be glad that I missed the first shipment... as days pass by more and more issues come up with this phone.
First this display issue that the camera is visible and in another thread overheating issue.
Reviewers said that the camera is not visible during normal usage and only in really heavy sunligh from the side and they showed 97% stability in 3DMark.... both have been disproved by users feedback here on XDA.
Click to expand...
Click to collapse
Perhaps they're using it with high brightness that's why they did not notice it. Well, I'm hoping it's not a factory defect or whatnot. Haha.

My camera is only visible on very low brightness levels, and I also haven't noticed any overheating problem. The only pet peeve I have about it is, that there's no global audio equalizer, only in game space. And that one disables once you put the phone in standby.

KAVELAB said:
My camera is only visible on very low brightness levels, and I also haven't noticed any overheating problem. The only pet peeve I have about it is, that there's no global audio equalizer, only in game space. And that one disables once you put the phone in standby.
Click to expand...
Click to collapse
That is disappointing, it should not be visible at all, expesially not in low lit enviroment.

Same issues, combined with weird brightness flicker and other software issues... pretty disappointed, hopefully they will be able to fix those issues... coz otherwise phone is pretty good, software is garbage tho

Dogan_M95 said:
Okay i see, yours is quite more visible than mine. Mine is only really visible in dark gray background, but does not have this green tone to it.
Click to expand...
Click to collapse
Phone was perfectly fine when I got it Yesterday and now when I look at it Today it has that weird Greenish tint on the selfie camera screen.
I noticed it before i even came here!
Its not as bad a the first post Picture, its more like this post I'm replying to.
Really noticeable on Android dark mode grey color.
hopfully its not a hardware defect!!!
I just got this thing!

CptNight said:
Phone was perfectly fine when I got it Yesterday and now when I look at it Today it has that weird Greenish tint on the selfie camera screen.
I noticed it before i even came here!
Its not as bad a the first post Picture, its more like this post I'm replying to.
Really noticeable on Android dark mode grey color.
hopfully its not a hardware defect!!!
I just got this thing!
Click to expand...
Click to collapse
Yeah. I've also sent them an email regarding this, waiting for their reply. I hope it's just a software defect, and seems that a lot of users experience this.

Update: Apparently, the green tint issue on the UDC is normal according to Nubia's support team.

batuken said:
Update: Apparently, the green tint issue on the UDC is normal according to Nubia's support team.View attachment 5833575
Click to expand...
Click to collapse
Wow so they dodged responsibility and just say its normal... I am thonking about canceling my order, this is unaccaptable.

Well i just did a live chat about this issue and they Elevated my issue and will get back to me.
So we will see if i get the same response!

Got a Response

What i want to understand is, if is only some units or all have this problem

Aviver said:
What i want to understand is, if is only some units or all have this problem
Click to expand...
Click to collapse
All of the units have this issue.