yashsingh1/xdaforums huggingface dataset:
[Galaxy S II General] deanwray:
App test

updated app again, put changed a method and put some lines in the UI to show you where to look!
[Galaxy S II General] Black-Star:
I know that the Droid Charge and the Infuse 4g also have Super Amoled+. But do they have the yellow tint on the left side ?
[Galaxy S II General] EarlZ:
Id like to know that as well, I posted on the Infuse forums.
[Galaxy S II General] SoKoOLz:
Hope that this problem doesnt happens to my phone also.
[Galaxy S II General] BarryH_GEG:
If it doesn't effect you, you'll be the first. The question is will it bother you? If you haven't ordered the phone yet you should review the pics in the middle of the thread showing apps and such. If it does bother you, there's nothing that can be done as of now so your only option would be to return the phone. Exchanging it is pointless unless your screen has some sort of other defect that could potentially make the banding appear worse than the phones in the pics.
[Galaxy S II General] EarlZ:
From an infuse user, I guess they are also affected but probably not noticeable in daily use unlike some of our phones.
[Galaxy S II General] Leggenda:
http://xdaforums.com/showpost.php?p=15483974&postcount=20

;)
[Galaxy S II General] TechNoir:
For anyone now running the leaked KG1 firmware, check your displays and see if anything has changed regarding the yellowish left side of the display.

I haven't looked for it for the past few days, but I flashed KG1 yesterday, and was doing some reading of Ebooks last night, with screen filter app and lowest brightness. Normally the yellow tint was very noticeable for me, but I cannot really see it anymore. The display seems uniform in brightness and color edge to edge even on lowest brightness with screen filter set at around 25%. Before in for example the market menues the left side had a noticeable darker yellow white on the left side, while the right side was a more blueish white. Now it seems very uniform.

I cannot be bothered to flash to 2.3.3 ROM just to check this, but it would be nice to hear some comments from anyone else if this is an actual effect or just me making a faulty correlation.

EDIT: Checked it again just to be sure, and there really is no difference anymore. Even when turning the phone upside down, where before the tint would obviously move to the right side of the display instead, now my eyes don't pick up any noticeable difference in color temperature between the left or right side.
[Galaxy S II General] anshmiester78900:
So is the yellow tint problem corrected ?
[Galaxy S II General] TechNoir:
I don't seem to have it anymore at any brightness level with the same display settings I've used before on 2.3.3 FWs.

I was hoping others could comment to see if this is only me, and if it is due to FW or something else.
[Galaxy S II General] coolfire:
That will be awesome news if the KG1 update solves it.

Sent from my SGS II
[Galaxy S II General] beppez82:
Little more uniform but still present :-( here on kg1
[Galaxy S II General] TechNoir:
I wonder if they have studied this problem, assuming it is a hardware problem with the glass layers or whatever, and done an average correction in the SW for it. That could mean that for some the correction will be spot on, whilst others who had more or less yellowish tint before could still have some left, or it might be slightly overcompensated in the other direction, so that the left side is now slightly more blue/white than the right side.

All speculation though. Any comment from anyone who tried KG1 is welcome, particularly if you have clearly noticed the problem before.

Also, anyone who plans to flash KG1, check this before and after, and see if any noticeable difference can be spotted.
[Galaxy S II General] EarlZ:
Wow, thats gonna be 100% odd if a firmware update fixes the issue.
[Galaxy S II General] knyitogato:
upload some photo please!!! i am egare to see (or exactly does not see) it :)
[Galaxy S II General] anshmiester78900:
OMG i think that this problem then can be solved by firmware update ,,.. wow i will get this phone then :P :D
[Galaxy S II General] anshmiester78900:
But still it has somewhat improved rit ? :D
[Galaxy S II General] BarryH_GEG:
I agree. The Infuse guy took crappy pictures so it's hard to tell if the phone's got the same issue as the SGS2 and to the same degree. If the Infuse has it too that's really interesting as it's a totally different screen installed in a totally different chassis. So the issue could be:

1) A production challenge in producing AMOLED+ screens.

2) The chassis are different but something behind the screen effects them the same way (heat, interference).

3) It's software related.

4) It's hardware related but can be overcome with s/w if the 2.3.4 update makes it less noticeable.

2.3.4 is supposed to be official by the end of the month. Those who the issue bothers the most should take some before and after pictures to see what (if any) impact the update has.
[Galaxy S II General] EarlZ:
What we also need to see if the SGS1 produces the same image on camera.
[Galaxy S II General] BarryH_GEG:
My guess, and its only a guess, is that it wouldn't. It may be something that's always existed in SAMOLED but the move away from Pentile in SAMOLED+ allows it be more easily detected. That's assuming it's not either manufacturing or interference related. I wonder if the Droid Charge has it?
[Galaxy S II General] EarlZ:
Right now im even wondering if the china or korea made has something to do about it.
[Galaxy S II General] BarryH_GEG:
Samsung manufactures all the displays themselves in the same factories. So I don't think where they're assembled would make a difference. HTC uses Acer and Sharp to make the LCD displays in the Sensation and there are big differences between those display.
[Galaxy S II General] EarlZ:
You do make a very valid point
[Galaxy S II General] Leggenda:
I can confirm this... ;)
[Galaxy S II General] roxas89:
that's interesting you could be right maybe it's a software issue i remember the nexus s suffered from a similar problem after the gingerbread update except the whole screen was yellow

see what i mean ?
[Galaxy S II General] nomnompie:
Interesting that you say it appears better with the leaked firmware.. Doesn't make much sense though as I am fairly sure it is a hardware issue due to the fact that different phones have the issue to varying degrees of severity. I guess we will have to see once more people can confirm/deny. If it's caused by some kind of interference maybe a SW update could be the answer. :confused:

I'd love to try it but company in the UK that I got mine from is giving be a load of bull**** on the return, so I still do not have a replacement OR my original, and its been about a month.
[Galaxy S II General] BarryH_GEG:
I remember that, NS users went nuts. The difference though is that was a change in color temperature that effected the entire screen on every phone. This issue is only on the left side of the phone and may effect individual phone differently. Or it may just seem different based on some phones due to other aspects of the screen being different (EG: yellow biased color temperature). There's a lot of QC issues at play so it makes it really hard to say what the baseline should look like. Especially when all we see are pictures that were taken very differently.
[Galaxy S II General] icet69:
Is there no comment from Samsung till now? :(

I cant belive that! Such a defect and no one cares. Never ever Samsung again.
[Galaxy S II General] BarryH_GEG:
The silence you hear is their response.

Good luck with HTC, LG, or Motorola. If you find the perfect phone come back and tell us which one it is.
[Galaxy S II General] Endoran:
All of this is leading me to believe all the sgs2 screens have this problem? My screen has a yellow tint across the whole screen but is darker on the left. I already got an rma # from handtec but am hesitant to send it back if all the screens suffer from this problem. I'm looking at my swype keyboard and I can see the difference from the right and left side. Should I rma it and hope I get a less noticeable one? Or what? Do you think their rma would be a new phone or a refurbished phone? Agh, I don't know what to do. It wouldn't bother me if it was uniform...
[Galaxy S II General] BarryH_GEG:
The answer's the same from when you asked four pages ago. If you see a yellowish tint on everything than the color temperature on your phone is wonky. I'd guess the tint is exaggerating the banding which is why you can see it with the naked eye. Most of us can only see it when we take pics of the phone. If it's going to bother you, exchange the phone.
[Galaxy S II General] Zheiko:
Ok, a friend of mine ordered same phone the same day, form same company, his phone has this yellowish tint a way more visible than mine, so I guess all phones have that, but on some its less noticeable than the others, and I consider myself being more lucky for having it visible less... however mine phone has different issue, and thats echo, so I am exchanging anyway, so I guess my next phone will have yellow tint as well..(I am praying to all Silicon gods to get one without the tint)
[Galaxy S II General] Pfeffernuss:
Please stop believing those BS things. A leaked firmware will NOT make the uneven screen problem go away as it is hardware related.

With every new Rom/kernel/firmware people are noticing improvements. Better this, better that. Usually all false/bogus.

The NS fix was a totally different matter as the color balance was changed, affecting the whole screen. Has nothing to do with the SGS2-screen problem.

Why people are spreading these remarkably useless things I really have no idea.
[Galaxy S II General] sumeshd:
exactly..and just keep in my that the so called "leaked firmware" is still in testing phase..it may also have some bugs or problem..

I flashed stock yesterday and I have screen flickering issues..it sometimes flickers so much i just have to turn d display off..i dont know if any1 else experienced it and yes i also had random reboots.. now I am flashing kf2 back..
[Galaxy S II General] julandroid:
Dial *#*#0*#*#*

Take a look at the color patterns for Red, Blue and Green. Also take a look at the White and Black.

Do you see all these patterns with perfect uniformity and illumination for every single pixel as I do?

Explain this - how do you get perfect uniformity for basic colors (R-G-B) which builds all the other color variations? Do you get what I mean?

Now, you understand why you read all over again, all these rumours. It is easy to believe that the problem is bounded to some fancy color correction, based on the color profile or incomplete pixel calibration, which can be easily corrected via firmware update. Moreover because all phones experience, virtually the same problem at the same position it is rather global calibration issue than 100% defective screens on all phones!
[Galaxy S II General] Endoran:
Sent mine back to the UK. Hopefully my replacement doesn't have the issue / as pronounced of an issue. Maybe I'll have the replacement by next monday! :D
[Galaxy S II General] BarryH_GEG:
That would be cool. Make sure you post the differences you observe when you get it.
[Galaxy S II General] StupidIdea:
+1. It is not fixed in KG1. Screen looks the same as before.
[Galaxy S II General] Endoran:
Most definitely. Having gone back to my captivate's screen I must say I much prefer blue to yellow. Was still very hard to part with the sgs2, the sgs1 is so slow in comparison.

Sent from my SGH-I897
[Galaxy S II General] EarlZ:
The speed on the SGS2 is also making it hard to go back to the SGS1, the speed difference is THAT huge!
[Galaxy S II General] Pfeffernuss:
Sorry, I can't see your screen from here as there are NO photos to prove anything. Without photo's: no proof: says nothing.

The kernel will NOT fix the screen. It... will... not...

All B.S. and (again) bogus claims. It's hardware related.
[Galaxy S II General] deanwray:
Hate to disagree, well, ok I dont...

I've said b4 a software fix is actually possible, but...

.Doing a variable Hardware correction plane at driver level is only 5% likely

.Compensating for the variable nature of the defect takes the chance down to 2% ish... maybe

So it CAN be done, it's just 2% likely tis all :)

So really not probable! :)

As a side note, not many ppl reported back about my gradient app, so the problem can't really be worth that much effort to fix for those who have it and are keeping the phone.
[Galaxy S II General] EarlZ:
Heres a picture on the SGS1 for reference

This photo from my SGS1 which i sold to a friend.
[Galaxy S II General] beppez82:
Got a weird thing today the display become all green so everything was more green (also the dark background) for 1 sec, using XDA app with dark background, and then come it to the normality with all the colour... I'm on kg1 anyone here got something like these?
[Galaxy S II General] Galactica.:
Got my Galaxy S2 yesterday from the Swedish carrier 3 (tre) They were out of stock so I had to wait few days so the sent me one from Gothenburg as fast they got them from Samsung I guess since they told me that all their stores were out of stock.

The yellow tint is there or so i think, seems a bit lighter on the left top side, but nothing really that is noticed I always got the display on Auto brightness.

One thing to say is that the Galaxy S2 display got way lower brightness than my Galaxy S I9000.

Anyway here are some pix, not great quality since they were made with Galaxy S1, also the top down red ish thing is not on the display, guessing its the pink spot by the camera or something else weird stuff.
[Galaxy S II General] ankit1986:
It happened to my phone also. After i finished a call and kept the phone down,tThe display turned all green for a second and then back to normal. Hope its not some hardware fault. I'm on default KE8
[Galaxy S II General] beppez82:
Omg those displays aren't so much cool..

They have to be called Samoled - lol
[Galaxy S II General] Endoran:
Well...I couldn't figure out your app when I tried it last week. I know you've made it more user friendly since but I've sent my phone back already.

Sent from my SGH-I897
[Galaxy S II General] nomnompie:
Sorry guys I didn't mean to sound like I thought the update *fixed* a hardware issue. I simply meant I was wondering if they had managed to do something that deanwray has been trying to do with a software gradient. But alas I was just hoping for something I suppose.:rolleyes:

I just thought today though (but maybe most of you already know this), I saw replacement screens online (only sold to actual repair shops) but the screens were adhered to the digitizer. When I saw that I had a "duh" moment.. Bet its got something to do with the adhesive process and not a defect in the screen itself and they use some ****ty glue or something. Whether it is or not I suppose we will never know, but it may explain why Sammy doesn't think there is a problem with the SCREEN itself and therefore why they won't do anything.

@deanwray: I would have tried your app but my phone has been sitting in Britain at Royal Mail for a month because the company is telling ME I need to pay Royal Mail so that THEY can go pick it up. (I suppose they think Royal Mail is going to fly a bill to the to me in the USA so I can mail them a check) Bunch of baffoons.

I guess I am going to gamble on another SGS2 in hopes of getting a lesser tinted one that I can hopefully barely see. We really are limited as Barry repeatedly stated, with the other 2 "top of the line" phones having such incredibly stupid issues of their own.

I wish they would just make a S-LCD version of the SGS2. But again, if its the glue or whatever kind of crap they use to stick the screen to the digitizer, I suppose changing the screen wouldn't do a darned thing.:rolleyes:
[Galaxy S II General] julandroid:
I don't understand what kind of photos do you want from me? I don't ask to believe me, I just want from you to take a look at your phone, with your own pair of eyes and confirm the uniformity of red, green and blue background patters!

So far no one of the affected users complains about the red, blue and green patterns. That is a question of simple physics and math.
[Galaxy S II General] BarryH_GEG:
I'm guessing there's a misunderstanding. The OP who was talking about the LCD test being perfect was saying that if 2.3.4 introduced some type of left-side software color correction you'd be able to see it on the LCD test colors. The facts the LCD color tests were uniform proves there's no color correction happening. I think the person asking for "proof" thought OP was saying his screen was "perfect" and didn't have the left side banding that we've seen on every phone to date. Am I right?
[Galaxy S II General] EarlZ:
Its not about the colors you see on the lcd test menu, those colors are lit up so bright it appears uniform, actually we believe that your screen has no yellow tint we just need a picture for reference so that others can say that there is a unit w/o a yellow tint, so far I've seen 3 pictures w/o a yellow tint and just 1 actual unit.
[Galaxy S II General] Endoran:
When I get my new sgs2 next week I'll post photos side by side of my sgs1 (samsung captivate - at&t's branded sgs1) and my new sgs2.

Sent from my SGH-I897
[Galaxy S II General] EarlZ:
We would look forward to this!
[Galaxy S II General] djpianz:
Hi everyone. Recently I've found another issue maybe related to this yellow tint problem.

Try to change your lockscreen wallpaper to a solid black image. What I've found is that on the left side it is perfect, but on the right side, there are very dim red horizontal stripes from top to bottom. From what I can see here, is that the screen has some calibration done, if too much, then you'll have red stripes on one side, to low, you'll have yellowish tint on the other side. You can see those in a dark room. Please try and report your result here.

The strange thing is, that when you put the same solid black wallpaper as your homescreen wallpaper, the red stripes were gone.

My conclusion is, maybe....I said maybe, there is some sort of color calibration or brightness/contrast compensation variation between left and right screen and this numbers or formula were included in the firmware. As manufacturing process goes, there must be slight variation between all phones, so while "ONE FOR ALL" calibration setting is generally acceptable for mass production, one cannot tune every set to perfect condition, so maybe...I said maybe again, an updated firmware will have better calibration algorithm to reduce the yellowish tint effect. But for best solution, maybe again, someone will write a tool to adjust this setting themselves because the magic number is "OBVIOUSLY" different.:)

Just my 2 cents.
[Galaxy S II General] BarryH_GEG:
A black background looks the same on my lock screen as it does on my home screen - solid black.
[Galaxy S II General] EarlZ:
Tried it, i get very very solid blacks no red stripes on the right side.
[Galaxy S II General] djpianz:
Have you try to check again in very dark condition, because under dim light or low light, I just can't see it, but in a very dark condition, it is quite obvious.

Change the lockscreen to a solid black image, lock the screen, go to a very dark place.....:D, activate the lockscreen by pressing home button where you can see the clock and date, on my set you can see those red stripes on the right side.
[Galaxy S II General] BarryH_GEG:
A couple of people have reported some funkiness with artifacting, ghosting, and mysterious lines that aren't there all the time. Not just here but on the Sensation and G2X/O2X forums too. It's most likely app conflicts or poorly written apps. If its still there after a hard reset than I'd guess it's hardware.
[Galaxy S II General] BarryH_GEG:
Based on your first post, I looked at the display in an almost pitch black room. Nothing out of the ordinary.
[Galaxy S II General] djpianz:
Ok, thank you, maybe I have a faulty display then. Will try to make an appointment for an exchange because it's only 6 days old.
[Galaxy S II General] EarlZ:
The only funkiness I have is the Yellow tint and the rendering glitches/artifacts with the grass live wallpaper, do you have that?

I didnt check it in a very dark condition, I checked it on a ZERO light and visibility room. No red stripes.
[Galaxy S II General] djpianz:
Now, I'm beginning to confuse a bit, because when I'm using the exact same solid black image as wallpaper for homescreen, it's perfectly black, no red stripes...only happen in lockscreen. I'm using stock firmware. Any explanation....:confused:
[Galaxy S II General] EarlZ:
I have no idea, probably try a hard reset or another firmware
[Galaxy S II General] EarlZ:
This video review on GSMA, clearly shows that their sample has no yellow tinting on their unit.

This makes it the 4th unit I've seen online that has no yellow tint and 2 units w/o yellow tint in real life ( one is a demo unit )

http://www.youtube.com/watch?v=uuouV_wABE8
[Galaxy S II General] djpianz:
Ok, will try hard reset first, if no difference, will download unofficial KG1 firmware and report back my result on this red stripes and also the yellowish tint issue on the left side.

Thanks again.
[Galaxy S II General] Sourav_SGS2:
Just got my SGS2 !!

I am from India and I just bought my Samsung Galaxy S2 5 days back and I am really in awe of this device.. however, just wanted to clarify on the "yellow tinge on the left" issue here.. first of all, there is no way I could make it out in everyday use.. and I do practically all that you can do with the phone.. from watching movies to browsing the net for long durations... I also tried the LCD test (*#*#0*#*#*) on my set but got no yellowish tinge.. also tried the URL test but really had to strain my eyes to notice anything.. well yes, there might be a very slight yellow tinge at the bottom half of the screen but I could only see it after trying really hard .. So all in all, I am very happy with my handset .. I bought it a little late on purpose so that I get my set from a later manufacturing batch and I think my patience has paid off... because I have seen other sets having this problem to an extent that it affects everyday use ... My build no is GINGERBREAD.XWKE8.. I think this is the latest one available off the shelf even though I was given a firmware upgrade by Kies (which I firmly rejected :-)) Let me know of any questions/clarifications and I'll be happy to help ..:)
[Galaxy S II General] EarlZ:
On some units the tint isnt very bad, its good that you got an acceptable screen. Would you be able to post a picture with the notification tray dropped down ?
[Galaxy S II General] Sourav_SGS2:
Sure.. just give me a day or two and I shall get back with some pics :)
[Galaxy S II General] Pfeffernuss:
You can not "clearly" see this unit has no uniform screen. That's B.S.

Don't believe it. All screens have this phenomenon. If not: pix please to prove it.
[Galaxy S II General] deanwray:
Not sure you qualify to class his perception and interpretation of "clearly" as b.s. ;)

Maybe you should be a bit nicer, and point to a post that explains how to reproduce and test. And explain that in most cases it's not apparent in normal daily use.

Just a peaceful thought...
[Galaxy S II General] Sourav_SGS2:
I think we are getting to a point where everyone with a faulty screen (bad enough to affect daily usage like browsing, watching videos, playing games, etc) is accusing the ones with a less faulty one (probably visible when observed very closely but not bad enough to affect daily usage or not visible in daily usage).. my take is possibly all screens have it to some extent .. in certain cases, its just worse.. in my opinion, most of the people who bought it in May/early June seem to have the biggest problem.. i somehow feel Samsung has addressed this issue to a large extent in their later handsets (obviously they are not going to issue a public statement and say that early units had faulty screens) .. :)
[Galaxy S II General] abo.saud:
I bough two SGS2 one made in Korea another made in china both have the same

left yellowish screen problem
[Galaxy S II General] EarlZ:
So whats your decision?