Develop Bugs

Blue-green tint

Hey xda forum!
I just bought the awesome phone, desire, but i noticed that my screen is blue-greenish tint, compared to my friends Desire. I think i can live with it, but is there anything to do? i've searched for this problem and found that the samsung vibrant also has this problem.
what can i do, is there any way u can change the setting of ur display? turning brightness up helps, but outside, my friends desire is easier to see/read compared to mine.

You may have it set so that brightness is Auto,
Settings > Display > Brightness

It was set to auto but that really look awful
So it is on full brightness now
Sent from my HTC Desire using XDA App

ninjaijutsu said:
It was set to auto but that really look awful
So it is on full brightness now
Sent from my HTC Desire using XDA App
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the amoled screen does have a blue tint, from what i beleve blue led's die out really quickly, Samsung on purpose made the screen to over display blue, and as time goes on, the blue will die to a yellow. So if your phone is more blue today, it will last longer tomorrow. also Samsung tunes all of their displays (TVs and all) towards the bluer end of the spectrum because it gives the display a higher apparent brightness because our eyes perceive bluish white as being brighter than yellowish white even with no actual brightness difference.

AndroHero said:
the amoled screen does have a blue tint, from what i beleve blue led's die out really quickly, Samsung on purpose made the screen to over display blue, and as time goes on, the blue will die to a yellow. So if your phone is more blue today, it will last longer tomorrow. also Samsung tunes all of their displays (TVs and all) towards the bluer end of the spectrum because it gives the display a higher apparent brightness because our eyes perceive bluish white as being brighter than yellowish white even with no actual brightness difference.
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thanks for the info, that actually good news followed up on ur info and read about it on wiki.
i guess thats the only way they can expand the life time of old amoled displays.
back to auto brightness

I just bought my desire and have same problem ad u guys. I accepted the fact that blue had a low lifespan, but was still trying to hunt for a solution. After dl many brightness apps I found, Brightness profiles. I started playing around to change the brightness and notice some weird flickness. Example at 74 % it was more "yellow" than on 75%. At 96 % had less blue tint than 100 %. I could see it clear under no light before I went to sleep. So I guess they are defect but Ye, that's my workaround cuz I'm too lazy to return the phone and I like the cool tint now, or well it got better

Dirt and lines under screen

I noticed as soon as I turned my Nexus on today that there was a line across the screen that looked like dirt under the display.
It is only noticeable on low brightness but the auto brightness set the phone to minimum when I turned it on so I saw it. I can only also see it on bright backgrounds like the forum - it is not visible on dark backgrounds or the home screens.
Does anyone else have this issue? I will return it soon and get it replaced but I am wondering if this is widespread or I was just unlucky.
Try turning the brightness right down and looking at this page and see if you see any lines/marks under the glass.

I have a line as well but it's quite small so I'm not really bothered.
Sent from my Galaxy Nexus using XDA App

Few very feint lines here too. Setting phone to fixed second lowest brightness setting and they vanish though.

This issue is on the gs2's too.

if you go to every forum of a phone that launches you will see the same complaint. its a plague

Spinstorm said:
I noticed as soon as I turned my Nexus on today that there was a line across the screen that looked like dirt under the display.
It is only noticeable on low brightness but the auto brightness set the phone to minimum when I turned it on so I saw it. I can only also see it on bright backgrounds like the forum - it is not visible on dark backgrounds or the home screens.
Does anyone else have this issue? I will return it soon and get it replaced but I am wondering if this is widespread or I was just unlucky.
Try turning the brightness right down and looking at this page and see if you see any lines/marks under the glass.
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Click to collapse
I can also see two faint grey vertical lines on either side of the screen if I have a light (white) background and brightness settings 1-3!
I haven't come across any other issues, I only noticed it after reading this thread and now its in bugging me. But I love the handset.. better than I expected!
Are these lines normal or do I have a duff handset? I have a couple of weeks to change it if necessary but I am also aware of the stock availability due to high demand.
Anyone else in same situation (O2 UK handset)?

I have the same issue on the lowest brightness, but not on the highest. It is also very faintly noticeable on my SGS2 on the lowest brightness. On my Omnia 7 (samoled) it is also very visible on low brightness, I think it is an amoled thing.

BiGMERF said:
if you go to every forum of a phone that launches you will see the same complaint. its a plague
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Exactly even the iphones with it's tinting issues SGS2 with it's Blotches in the dark
and the glass isn't perfect around the bezel
people just look for this stuff

I don't understood if this lines means defective screen or if all phones will have this lines.

I have the same thing on my Galaxy Nexus. I guess it's just a thing with Super Amoled screens, rather than a defect.

gambiting said:
I have the same thing on my Galaxy Nexus. I guess it's just a thing with Super Amoled screens, rather than a defect.
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+1 Just as I said in my post above I have 4 amoled screen devices and they all it to some effect. Do not worry, your phone is fine.

could someone please post a picture so i can see what you guys are talking about? i'm curious to see what it looks like since i don't notice this on the samoled screen on my nexus s.

I had that issue with 2 evo screens. I would also get dead pixels or blotches.. Just have to get lucky with one I guess.

jms.flynn said:
+1 Just as I said in my post above I have 4 amoled screen devices and they all it to some effect. Do not worry, your phone is fine.
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why is fine if it seems to have a problem?
do you think that it is normal to have lines on the screen?
can you tell for sure that every phone have that lines?

I have the same thing on minimum brightness. Its best seen by using a white image as wallpaper and having nothing on your far left and far right home screens. I have many vertical lines. When I scroll the home screen all the way over to the left until I see the blue gradient appear, the gradient varies in shades exactly where the lines are.
I noticed it as soon as i first powered on the device, same as the OP, as it was set to minimum brightness but I dont generally notice it any other time. I dont recall having the same problem with my galaxy S2

"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?
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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.
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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
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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.
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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.
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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 :|
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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.
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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)

Night Mode *not true amoled black*

I have noticed this issue since two firmware updates but i usually dont use night mode much that is why did not post anything regarding this.
When the nightmode is on and the brightness level is low lets say around 20% , the pixels are not really off when the bg is black (settings menu/qs). But when the brightness is increased above 40% the pixels go off and ive a true amoled bg.
Does anyone else have this issue?

bobandar said:
I have noticed this issue since two firmware updates but i usually dont use night mode much that is why did not post anything regarding this.
When the nightmode is on and the brightness level is low lets say around 20% , the pixels are not really off when the bg is black (settings menu/qs). But when the brightness is increased above 40% the pixels go off and ive a true amoled bg.
Does anyone else have this issue?
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Click to collapse
yes, its the problem off one UI dark mode not A50 problems!
try good lock to make ur bar!

Mahdi2000 said:
yes, its the problem off one UI dark mode not A50 problems!
try good lock to make ur bar!
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That can be but it is completely black amoled on my s9+. Maybe software update can fix it in the future. Not a major bug though, just wanted to know if the problem was common.

bobandar said:
I have noticed this issue since two firmware updates but i usually dont use night mode much that is why did not post anything regarding this.
When the nightmode is on and the brightness level is low lets say around 20% , the pixels are not really off when the bg is black (settings menu/qs). But when the brightness is increased above 40% the pixels go off and ive a true amoled bg.
Does anyone else have this issue?
Click to expand...
Click to collapse
Mine is just simply not true black, but I can only see it when I boost the brightness. But to be fair, samsung doesn't really promise a true AMOLED black as they say it's just so it's easier on the eye at night (dark/low light) ambient. But yeah, it'd be better to have a true AMOLED black in night mode.

amrazing33 said:
Mine is just simply not true black, but I can only see it when I boost the brightness. But to be fair, samsung doesn't really promise a true AMOLED black as they say it's just so it's easier on the eye at night (dark/low light) ambient. But yeah, it'd be better to have a true AMOLED black in night mode.
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Mate, it is true amoled back on flagship devices after s8, i had a true amoled black on my s9+ no matter at what level my brightness was set.

bobandar said:
Mate, it is true amoled back on flagship devices after s8, i had a true amoled black on my s9+ no matter at what level my brightness was set.
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Well then it sucks. What's the point of having an AMOLED display if the software won't let us have its advantages

amrazing33 said:
Well then it sucks. What's the point of having an AMOLED display if the software won't let us have its advantages
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Yes , exactly my point

Its named night mode and not dark mode maybe its different

Yep, I agree, however I don't notice any difference depending upon brightness level.

bobandar said:
Mate, it is true amoled back on flagship devices after s8, i had a true amoled black on my s9+ no matter at what level my brightness was set.
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Yeah its also amoled black on my a7 2018 and a50 except for the normally white parts in the ui but its okay like most of the ui is still pure black its not like the whole screen is grey

There is s little fix guys. See this video
https://youtu.be/Y398_v3DRkI

Theres no large difference in mah consumption between completely dark mode (pixels off) and dark theme.

To me it seems black parts are true black/turned off. On any level of brightness is the same.

No I think Samsung did it intentionally.. because true black is way more susceptible to burn in.. you can't have UI elements being turned off all the time that would result in very bad burn ins to text and Icones..
Still thay made it dark enough so you won't notice it
And another thing it's the opposite of what you said when the brightest is low it turns off and when it's high it becomes very dark gray technically black but not off.

Also you can't design a decent looking gui if all elements are pure black.

Guys try good lock app via which the notification panel can be adjusted to colors we want

baraa_a_awwad said:
No I think Samsung did it intentionally.. because true black is way more susceptible to burn in.. you can't have UI elements being turned off all the time that would result in very bad burn ins to text and Icones..
Still thay made it dark enough so you won't notice it
And another thing it's the opposite of what you said when the brightest is low it turns off and when it's high it becomes very dark gray technically black but not off.
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That's not how burn in works. Burn in occurs at the pixel level. A pixel that's on all the time will burn at the regardless of the colors of the surrounding pixels (black, grey, or whatever)

felixdd said:
That's not how burn in works. Burn in occurs at the pixel level. A pixel that's on all the time will burn at the regardless of the colors of the surrounding pixels (black, grey, or whatever)
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Every burn in is different from another.. basically the higher the contrast the worst the burn is

baraa_a_awwad said:
Every burn in is different from another.. basically the higher the contrast the worst the burn is
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I think maybe you're confusing contrast with brightness? Again, burn-in occurs at the pixel level, when a pixel cannot return to its initial relaxed state, and is not dependent on whether the pixel beside it is on or off.
https://en.wikipedia.org/wiki/Screen_burn-in#Plasma,_LCD,_and_OLED_displays for a very brief primer

bobandar said:
I have noticed this issue since two firmware updates but i usually dont use night mode much that is why did not post anything regarding this.
When the nightmode is on and the brightness level is low lets say around 20% , the pixels are not really off when the bg is black (settings menu/qs). But when the brightness is increased above 40% the pixels go off and ive a true amoled bg.
Does anyone else have this issue?
Click to expand...
Click to collapse
Hello, on my galaxy a50, there is a similar effect, only at a brightness close to the minimum, a gray gradient appears, part of the screen becomes gray and part black. When you increase the brightness to about 40 percent, the color is aligned. At the same time, the black color remains black on the lock screen at any brightness.

Green tint on dark background low brightness

Man I hate OLED lottery.
Does anyone else have this issue? It's something similar to this:
https://forum.xda-developers.com/oneplus-7t/help/green-tint-issue-oneplus-7t-t3986231
I'm debating if I should exchange it or just keep it, it's only noticeable at low brightness

vwite said:
Man I hate OLED lottery.
Does anyone else have this issue? It's something similar to this:
https://forum.xda-developers.com/oneplus-7t/help/green-tint-issue-oneplus-7t-t3986231
I'm debating if I should exchange it or just keep it, it's only noticeable at leow brightness
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I have the same effect in original Youtube app. It is just a bad background gradient in the application. Don´t blame the phone....
When I open Messenger with black background and grey status bar at the top of the app in the same brightness level, there is no greenish effect.

I am also having uniformity issues. Very noticeable, unfortunately. As there are no 512GB Ultras available anyway ATM, O will just have to live with it for the moment. Maybe I get used to it...

buddy66 said:
I have the same effect in original Youtube app. It is just a bad background gradient in the application. Don´t blame the phone....
When I open Messenger with black background and grey status bar at the top of the app in the same brightness level, there is no greenish effect.
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mm weird, I see it in every single app with dark grey background, even in settings (w/Dark mode on), the bleeding is a lot bigger from the top right corner.
EDIT: Just checked the messenger app (FB messenger) and background is completely black so most pixels are off except for the letters and gray search bar but bleeding wouldn't be noticeable.

vwite said:
mm weird, I see it in every single app with dark grey background, even in settings (w/Dark mode on), the bleeding is a lot bigger from the top right corner.
EDIT: Just checked the messenger app (FB messenger) and background is completely black so most pixels are off except for the letters and gray search bar but bleeding wouldn't be noticeable.
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I've just checked it with Gmail since it is also a Google application and you can notice the bleed when the lights in the room are turned on and I try to cover the top of the phone to see it. After turning the lights off, whole app is equally gray so in my opinion it is just an optical illusion. If I recall well the AMOLED displays use some kind of dimming (tinkering with the frequency) in order to reach a lower point of the brightness that is not noticeable for human eye. Probably this can be seen when covering a gray part of Google apps in a room that has another not so bright light source.

buddy66 said:
I've just checked it with Gmail since it is also a Google application and you can notice the bleed when the lights in the room are turned on and I try to cover the top of the phone to see it. After turning the lights off, whole app is equally gray so in my opinion it is just an optical illusion. If I recall well the AMOLED displays use some kind of dimming (tinkering with the frequency) in order to reach a lower point of the brightness that is not noticeable for human eye. Probably this can be seen when covering a gray part of Google apps in a room that has another not so bright light source.
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I made a picture. It is showing a 5% gray test pic and supposed to be uniform. It is easy to see and I was kind of shocked when instantly noticing it the first time I was using it in the dark. Settings and many parts of the dark one UI are using grays in that range.
Anybody else? If it is rare, it will be worth pushing for an exchange.

corwin_amber said:
I made a picture. It is showing a 5% gray test pic and supposed to be uniform. It is easy to see and I was kind of shocked when instantly noticing it the first time I was using it in the dark. Settings and many parts of the dark one UI are using grays in that range.
Anybody else? If it is rare, it will be worth pushing for an exchange.
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Click to collapse
I did the same test, I'm attaching a picture of my Note 10+ and the S20 Ultra side by side. Uniformity seems a lot better on the note 10+, however on white background the Note 10+ turns more red when I slightly tilt it while the S20 Ultra seems to shift colors a lot less and still white overall.
Still not sure if it's worth the hassle to return.

Ok, the fact, that it looks very much like mine can be good and bad ?
Could you please check, if is different at 60Hz? For me, it is clearly different.

corwin_amber said:
Ok, the fact, that it looks very much like mine can be good and bad
Could you please check, if is different at 60Hz? For me, it is clearly different.
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Oh wow, you're right! I set it to 60 hz and QHD+ and uniformity on the gray test got noticeable better, still some green on top right corner and around the punch hole but noticeable less. I love reaaally 120 hz during normal use though.

Thanks for confirming, same here. I wonder, if this is something, that can be fixed in software... And if the rumoured 'dynamic refresh raze' update might change things.
Could please note people check their Ultras displays?

Same here with my s20 more visible at 12hz refresh rate with dark theme

Damn it, ok, then I really hope that it is fixable... Weird.
I am using smiled displays since Symbian Nokias, never had one, where I noticed it so much.

I remember all the Mate 20 Pros with LG screen had this issue buy way worse in some cases
https://www.google.com/search?q=mat...JtXpfSDsL9sQXomrbgDQ&rlz=1C1CHBF_enUS731US731
In some cases they were normal during the first days but the problem evolved until the display was unsusable in low light conditions, hope the same won't happen to our phone during the next weeks.

yeah I don`t have this issue I did the screen test in Gmail and download the app that does all the different colors including gray, at the lowest brightness and at other levels of brightness at 120hz its all uniform.

2003vstrom said:
yeah I don`t have this issue I did the screen test in Gmail and download the app that does all the different colors including gray, at the lowest brightness and at other levels of brightness at 120hz its all uniform.
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Mine is most noticeable at around 35-40% brightness and with 120 hz but still noticeable with 60 hz while on the note 10+ I can't see any green at all at any level of brightness. I think it's a quality issue and variation of OLED screens but not sure if it would count as "defective". Samsung doesn't do exchanges so it would be a pain to return everything and recorder without the promotions and reservation/pre-order credits. Ugh not sure what to do yet.
EDIT: Btw I tested with gmail and didn't notice the green in the app since it's light gray but as soon as I drop down the notification panel (w/dark mode on) the green is immediately noticeable. It's only with very dark gray that lookd almost black which is what Samsung use for all their apps (settings, calculator, messages, etc.) when dark mode is on. I wish they used true black so pixels were completely off like with facebook messenger.

I am also unsure what to do. I have to say, however, that this is the device that gives me the most uncertainty ever. For this opportunity price I want a good to perfect display. @vwite Don't you think that the dark grays are too bright as well? It wouldn't be so visible otherwhise. I also sent my picture to the 'write the CEO' address and a pledge to be aware of the issue:
https://www.samsung.com/uk/info/contactus/email-the-ceo/ (example: UK)
I will try checking in a store, which will be totally hard because of the light there. Maybe I will just order another one... Or a plus ?

Made another picture 'for the CEO' :silly: and will also attach the source image I showed on screen. To replicate:
- 25% brightness
- Show 5% picture in a dark room
- made picture with an S10+ on full auto

corwin_amber said:
Made another picture 'for the CEO' :silly: and will also attach the source image I showed on screen. To replicate:
- 25% brightness
- Show 5% picture in a dark room
- made picture with an S10+ on full auto
Click to expand...
Click to collapse
Thanks! Please let me know what they say.

Actually I ordered an S20+ now and will most likely just give the Ultra back in the first 2 weeks. Yes, it is a pain, but I really can not stand the screen as is. I am even putting it in its box before I have the plus and using my S10+ in the meantime - the green tint is driving me a little nuts.
I am having a hard time justifying the thickness and weight for a feature I hardly use (amazing zoom) while having an inferior main camera at the same time (focus issues).

i noticed this issue too on my 20+
it seems to be worse some days less bad other days
it also is very dependable on how much ambient light is around - eg is much more noticeable in dark rooms
and yes is an issue with Samsung dark mode that isn't true black but some dark greyish
other then this - all other colours look amazing = so not sure if the screen itself is defective
I do hope there will be a software update that will fix this or make it less visible