yashsingh1/xdaforums huggingface dataset:
[Galaxy S II General] pocketAM:
With firmware KG6 i've got good results.

Now i'm trying some custom ROM (based on the same firmware) with other kernels and the issue is coming back. I've also flashed the orginal KG6 kernel in my custom ROM (Leomar) but the yellow side is still here.

Any solution with custom ROM ?
[Galaxy S II General] iwang:
I am on standard rom, kg3..yesterday the yellow left side was noticeable, but today it recedes, whole screen turn slightly greyish/yellowish. I think the screen takes some time to actually settle. Now its fine.
[Galaxy S II General] nomnompie:
:rolleyes:
[Galaxy S II General] eallan:
Sounds like it's not going to improve or change.
[Galaxy S II General] darkwingz:
Same here on my unit, pretty interesting to see how does the kernel does it
[Galaxy S II General] tin427:
anyone here got a satisfactory battery life?

since i've heard that somebody can have a battery life of a day with brightness of 85%!

my screen has a yellowish left side and some checks when browsing the gray background of market. i usually set my brightness at 20%. my phone can't even last 18 hours if i turn on the screen for 2hours!

i don't think that's a kernel/rom problems as i've been tried quite a lot of roms or kernel, so i speculate that the reason of battery draining is by the screen.
[Galaxy S II General] EarlZ:
You should go to a battery drain thread or make on your self which includes details on your usage/settings and snap shots of the battery usage.
[Galaxy S II General] BarryH_GEG:
OK, it's time for a recap...

1) This thread was started way back in May because the OP discovered unusual banding on the left side of the display. To some it had a yellow tint, to others it was more of a shading. Some could see it in everyday use, others only in the dark on a grey background at 10% brightness and by taking a pic of the phone. So far, even today, every phone produced has the left side banding. And before anyone says "mine doesn't," follow the instruction in the first post and take a pic of your phone. If you haven't done that, then no one here is going to believe you have the first perfect phone.

2) Over the life of this thread, and based on other threads that were started, it appears display color temperature can vary from phone to phone. I've seen six SGS2's and a dozen Infuse's (also SAMOLED+) and all of them had cool/blue displays so I'm guessing that's what's considered "normal." If the color temperature of an individual phone is biased toward yellow or red, it's a hardware problem and the display itself is responsible. It also appears that people with yellow-biased displays see the left side banding in item 1 above more prominently and in every day use while people with cool/blue displays can only see it under special conditions.

So...

A) If you have a yellow-biased display its a hardware problem with the display itself. It can be minimized by changing the color temperature of the display via software but the display itself will always have a yellow bias. So all the discussion of improvements via ROMs/kernels isn't effecting the hardware, it's minimizing the yellow push by adjusting the screen color temperature via software.

B) The left side banding is a design/manufacturing issue and is present it every phone. Whether you see it or not and whether it appears yellow or just darker depends on the color temperature of your individual display. If you have a yellow-biased screen and a ROM/kernel reduces the yellow bias the banding may not be as visible but it's still there.

C) As new ROM/kernels are released by both devs and Samsung there's no assurance they'll address the yellow-biased displays by changing the screen color temperature. Not enough official ROMs have been released to say for sure that all future ROMs will have a different color temperature than the ones the phones shipped with.

Back to our regular circuitous debate...
[Galaxy S II General] EarlZ:
Nicely said, this is your second best speech about this issue and deserves a quote for reference. (Im not kidding or being sarcastic)

Is it just coincidence that a 2.3.4 kernel alleviates the yellow banding or uncle sammy knows something :confused:
[Galaxy S II General] BarryH_GEG:
If there's a red or yellow bias in the display it's because the display probably shouldn't have gotten out in to the wild. If Samsung were going to do something, they'd change QC on the display assembly line so the displays were coming out to spec before they'd change the color temperature of every phone worldwide. But I guess if X% are always going to end up with a yellow bias changing the color temperature to make it less noticeable seems logical. The short answer to your question though is it's too early to tell since there haven't been enough official ROMs released. When XEU comes out I'll post before and after pics of my phone to see if there's any difference.
[Galaxy S II General] EarlZ:
Just wanna clarify, by red bias do you mean warmer colors and correct white levels or just a red tint link this:
[Galaxy S II General] aussie_26:
I got my phone yesterday from Simply Electronics in Hong Kong and have since sold my iPhone 4. I am getting the yellow tint on both sides of my screen on low brightness it can't really be noticed on greys but I do notice it alot on a white background. It's like there is a stripe of pure white running down the middle with yellow tint on both the left and right sides.

My kernel version is 2.5.35.7-I9100ZSKG2-CL361136 root@ubuntu #6

My Basband version is I9100XXKG1

Build Number is GINGERBREAD.ZSKG2.
[Galaxy S II General] EarlZ:
And to think some people say this problem is very minor and next to non existent and should even be less than a handful of devices out of the 6M phones sold, Its more annoying in white colors.. Its like there is a mustard stain.
[Galaxy S II General] buxz777:
it is very minor if you dont have it bad earl but i have seen 1st hand how bad the problem can be (just like you)

if you dont have the problem bad that is great but if you have a phone with one of these bad screens it can be a needle in the eye and you dont have to go looking for it , it just hit you in the face .

i managed to get one i was happy with after a short wait and my friends seem ok as well , when i say ok i mean its barely noticeable at and you would have to really look to spot it etc so it isnt really a problem but on other phones the screens look awfull and it is really easy to spot

hope your having a good day
[Galaxy S II General] EarlZ:
Yes, based on my experience with several other S2's the severity really varies from extremely bad to moderately acceptable.

Exactly, some units have it so bad even if you intentionally ignore it, its gonna smack you right in the face

The one I have right now is pretty good, you can only see it on the dialer.. cant see it on the keyboard or anywhere else no matter how hard i try looking for it, the only prob with this phone now is the white blotches on a black image :/

Through exchanges the progression of phones I've gotten seems to have gone better, so I hope the next one ( waiting for another batch ) will be with in the specifications of the SAMOLED+
[Galaxy S II General] eallan:
I'm in no need of a recap. I know what the issue is.

My comment was merely the speaking to the issue not seeming to improve over time. It seems that Samsung doesn't see any need to correct this issue; shipping the phone back for repairs or exchanging will (still) likely not yield much improvement.
[Galaxy S II General] EarlZ:
I checked out a review done by phone dog and you can see that the screen does not have the same issue even when he pops the notification tray down but as soon as the stock samsung keyboard came out the left side was obviously darker, this is probably more pronounced in real life usage, getting bothered by it is upto the user, so this is a SAMOLED+ issue and probably will be with the SAMOLED HD.

http://www.youtube.com/watch?v=k_QIrxptrho

Gonna ask my friend to check if his Infuse4G has the same issue, he did mention to me both of his S2's had the issue and both didnt match in colors.
[Galaxy S II General] eallan:
My infuse had the issue, it was less noticeable.

There is no reason to assume that SAMOLED HD displays will have this issue. Regular SAMOLED did not. Hopefully they take notice and retool their manufacturing accordingly.
[Galaxy S II General] EarlZ:
I've lost a lot of confidence in Samsung though, they built it up pretty good and fast with the Wave and S1, but lets see if the SAMOLED HD devices that gonna come out before the holidays wont have the same problem.
[Galaxy S II General] BarryH_GEG:
If out of the box you're seeing white more prominent in the center of your display your phone is defective. The software it's running is irrelevant. And for all future posters, the display is the display and the software is the software. If you have a ****ty physical display, software isn't going to fix it. In the case of an overall bias to yellow, software can alter the color temperature of the display to make it less noticeable. But the physical display will always remain biased toward yellow when the norm appears to be cool/blue. I don't know what percentage are off from the norm (cool/blue) but either it's a fairly manageable number or some people don't notice or care. Just like the discussions on audio quality, the display appears to matter to people differently.

Here's a link to an overall color temperature change that was introduced on the Nexus. You can see the control s/w has over the display.

http://www.engadget.com/2011/02/27/nexus-s-2-3-3-update-adjusts-screens-color-temperature-we-go-e/
[Galaxy S II General] BarryH_GEG:
You mentioned that your "whites were white" on your latest phone and that the yellow was gone but you saw some red tint on your keyboard. I just assumed your display was biased toward red. The display uses RGB (red, green, blue) so to get yellow red and green are more prominent. If green and blue are balanced and red were more prominent I'd guess you'd get a red bias. Other than knowing what colors result from mixing primary colors, I'm really no expert on this.

Here's a dumb but interesting article on the mixing of RGB...

http://www.straightdope.com/columns...olors-why-do-color-tvs-use-blue-red-and-green
[Galaxy S II General] Prankey:
+1

I also have the same issues. Only the center is clean, bottom half on the left side is more prominent but it spreads out almost till center from both the sides.
[Galaxy S II General] EarlZ:
They are more like a very dark grey that is leaning towards reddish at 0% brightness at 50% they are greys.. Im not sure what to call them but I can confirm that my display has warmer colors thus crushing the yellow tint even on a 2.3.3 kernel.
[Galaxy S II General] cioly:
i'm tired waiting for a solution that won't come because is a hardware issue and after i receive the jig to clear the flash counter i'll sent my sgs2 to warranty. i've talked to Samsung (Romania in my case) on facebook and they ensured me that the problem will get solved. Hope to receive an sgs2 with non faulty display.
[Galaxy S II General] EarlZ:
Please keep us posted about this, it would be nice for everyone else to know if indeed they have non faulty batches. Dont lose hope yet!
[Galaxy S II General] stuclark:
I've now got 2 Galaxy S 2s; one of which has just (today) received a new screen.

I can confirm that the new screen is definitely running at a different colour temperature to the old screen (in my original device)

The old screen is very "cool" in hue and has NO yellow tint on the left hand side.

The new screen is quite "warm" in hue and does have a VERY SLIGHT yellow tint on the left hand side.

IF you turn the brightness up to MAX on the new screen, then they look the same!

(so, in other words, if someone like Supercurio were to play with the display temperatures, I'm sure we could fix this in software!)
[Galaxy S II General] nomnompie:
There's already a "software fix" for it in the stock kernels from KG1 and up. Devs just need the sources. :o
[Galaxy S II General] BarryH_GEG:
The problem with playing with the display temperatures is that it effects every phone the same way. So something that minimizes yellow for people with warm screens could be detrimental to people with cool screens. While not a valid statistical sampling, I've seen 18 SAMOLED+ displays and all of them tended to cool/blue so I'm guessing that's what Samsung considers "normal." If the majority or a large percentage were warm/yellow their would be more *****ing about the left side banding because warm/yellow appears to make it more noticeable. There can't be a one-size-fits-all solution when there's such a large variance between color temperatures from unit to unit.
[Galaxy S II General] anton79ru:
Guys, I have flashed KH1. Just like @nomnompie said, when I first booted after that, the tint was just as it had been. Once I locked the screen and unlocked it again, the tint was gone. I cannot see it anymore. Seriously, I have very good eyes, I see the bus number before my wife sees the bus. No pics. Learn to trust people ;-)
[Galaxy S II General] EarlZ:
Ive only seen like 2-3 cool/blue screens in my quest to find a non defective one most of them are neutral/yellow and the one i have now is warm/dark, this one has the yellow tint too but its barely visible, with a 2.3.4 kernel its mostly gone, only visible on the dialer.

@Unkl

Nobody is asking for proof that 2.3.4 alleviates it.. its already common knowledge for those who are bothered by this issue.
[Galaxy S II General] yklai18:
I have this problem as well but only in low brightness and white colour to able to see... anyone know is hardware or software problem?
[Galaxy S II General] EarlZ:
Back reading with even just a few pages should answer that ;)
[Galaxy S II General] np231:
It is one of the phone's features. Samsung spent a lot of time researching this so that you can easily identify a SGSII in the dark; but they made it super difficult, you can only see it in low brightness with grey background and sometimes a digital image of the screen is also required to clearly see the yellow tint.

In all seriousness, you should return the phone if the tint is really apparent. Cooler screen temp reduces the yellow tint, KG2 was one of the kernels with cooler screen temperatures and the tint is not noticeable at all (correct me if I am wrong).

If you can't see it during normal use then its not there.

If you insist on trying really hard to notice the tint then you clearly won't enjoy the phone, so in this case just return it and get a different phone.
[Galaxy S II General] Sp1tfire:
Goodluck on that, knowing what answers i got from Samsung Romania support :rolleyes:
[Galaxy S II General] EarlZ:
I fixed it.

But in all seriousness, I've never had to goto a grey screen or dark room to see the yellow tint, maybe I just got used to the Galaxy S1 screen to have even out colors and no mustard stain :)
[Galaxy S II General] nomnompie:
Not really any new info here, but throwing it out anyways.

Well finally I got my old SGS2 back after RMA'ing and shipping it back to the company and them refusing it at their pickup station.

First thing I noticed.. the screen is a LOT warmer and yellow than my current SGS2.. I flashed KH3 on it, and though the screen is STILL very warm, the color temp overall did not change, but the tinting on the left is gone, so however samsung did it, they didn't do it by making the entire screen cooler.:confused:
[Galaxy S II General] EarlZ:
Wait, isnt a warmer screen not supposed to be yellowish compared to a netural/yellow or cool/blue?

What I like about the warm screen is the sheer white levels, if you put it beside a cool or netural display their whites at 100% wont even match yours at 50% :D
[Galaxy S II General] Black-Star:
Same thing here, I've got a samsung (bought 3 days ago) where i can see the yellow tint on the left. But i've compared it to others devices in stores and those screen a yellower than mine with no yellow tint. I think i'll return mine to have the second warmer screen :(
[Galaxy S II General] nomnompie:
To my eyes the "yellowish" overall screen made the yellow left side more pronounced. The screen on my old SGS2 is kind of sickly looking lol. I was actually surprised. I knew that my old phones screen seemed more yellowish as far as I remembered but now that I've got them side by side the difference is extremely visible. The "blueish" grays on the status bar pulldown look a bit on the "sickly" dull side unless I put the screen mode on dynamic, it looks a bit better but I do prefer the colors on the newer SGS2 I have..
[Galaxy S II General] darkfire_bg:
Hi guys, i'm from Bulgaria, and 2 days ago i replaced my SGS with SGS2.. Couple of hours later, i spotted the yellow tint on the left side on the phone. Returned my phone to the carrier and got another one - which i checked - werent yellow. Well now, a day later i spotted the same thing but really less obvious. Both telephones are "Made in China". And knowing that my SUPER DUPER AMOLED PLUS screen is f***ed up is making me crazy. I dont know if i can return this one, and i dont really believe that if i get another sgs2 it will be better.. Can this be fixed in Samsung's official service center?
[Galaxy S II General] Sieg9198:
Don't worry you are not alone.I've noticed that since quite a while though. For every new kernel change.soon after I flashed it.I could see the yellow tint again.it then takes awhile for it to return to normal. I'm guessing the screen might be calibrating itself during.:-)
[Galaxy S II General] Black-Star:
But the thing is that i'm in KG1 and i don't know if my phone has the magic kernel that fix the yellow side.. I'll try to update and see the evolution. If it's the same, then i'll return it :(
[Galaxy S II General] nomnompie:
If its the stock KG1 kernel or CF-Root kernel it should not have the yellow tint on the left. Any kernel KG1 and up should fix it once the screen is locked and unlocked.
[Galaxy S II General] Lulabby:
Hi there,

Try to flash with the newest stock room kh3 which you can find in this forum to see if it improve your yellow tint (it does on mine and a lot of others). But be noticed that it can void your warranty. So if you want to be safe, go to Samsung's service center.

Cheers.
[Galaxy S II General] darkfire_bg:
Actually i prefer flashing the device instead of leaving it for 10-30 days in service center. Thanks alot, i ll flash custom rom with KH3(im currently with KH1).
[Galaxy S II General] nomnompie:
Make sure the rom you flash isn't using a custom kernel. Custom kernels as far as I know are still built off of the old source which still has the yellow tint. Try a stock kernel or CF-ROOT kernel.
[Galaxy S II General] C64c:
From Day 1 of owning this phone I've noticed the faint yellow. I only see this when the screen dims itself.

I have also tested dimming the screen via the brightness settings and i can see it as well.

Is this a fault or just the way Super AMOLED plus performs when very dim. Hmmm.
[Galaxy S II General] SugarySnack:
CF Root KH3 seemed to make a difference in my screen. The yellow tint is less noticeable. Might be a placebo, but I don't think so.
[Galaxy S II General] EarlZ:
Its probably a fault because the SAMOLED on the Wave/S1 didnt have this issue.
[Galaxy S II General] ram3n:
with the stock or custom kernel ?
[Galaxy S II General] Black-Star:
It's a fault. There's 2 types of screen, cool one and warmer one. I've got the cool one and i can see the yellow screen like you. If it annoys you, you should take it back. In the warmer screens, the colors ar better and the tint is almost inexistant ;)
[Galaxy S II General] anton79ru:
Black Star, what you're saying is wrong. I have a warmer screen and, when it was there, the tint was more visible than on cooler screens, because I specifically did the comparison.
[Galaxy S II General] pocketAM:
Only solution for me is : Original firmware ( > KG1 ) with original kernel or CF-ROOT Kernel

If i try CR-ROOT Kernel with Custom ROM i don't solve the issue
[Galaxy S II General] Black-Star:
When it was there ? So you don't have it anymore ?

I'm in KG1 2.3.3 and i still got the problems, so the kernel did not fix it for my screen..
[Galaxy S II General] Lulabby:
Try the newest roms such as KH1 with 2.3.4. It fixes my screen. And yeah someone has mentioned, only stock kernels or CF's ones can fix the issue, cooked kernels cannot because they run on the old source.
[Galaxy S II General] EarlZ:
Yes only the stock or CF 2.3.4 are really built from a 2.3.4 source thats why its the only kernels that can alleviate the issue.
[Galaxy S II General] anton79ru:
Just a report, guys:

Once I flashed the stock KH1, the tint was gone. But then I had to flash a rooted kernel to replace Swype that didn't have the Russian language. That done, the tint was back, but not entirely - now I have to lock the screen and unlock it again every time after I turn on the phone. Or is it the way it worked initially?
[Galaxy S II General] Lulabby:
Which rooted kernel did you flash? Only CF rooted kernel can fix the problem.
[Galaxy S II General] anton79ru:
Lulabby,

It was indeed a CF kernel.
[Galaxy S II General] bala_gamer:
I think its the problem with some ROM settings, just flashed my brand new S2 from XXKG6 to a custom rom (lightning 6.1). It simply freaked me out, my good looking screen got the yellow tint on the left side after flashing this custom rom. After following this thread for a while i felt how bad a yellow tint would be, within a few minutes flashed to stock XXKH3, thank god my screen was back to normal....... My first custom rom flashing ended in disaster, ill be sticking up with few kernel mods and some tweaks here and there for a while....
[Galaxy S II General] aussie_26:
So today I flashed to stock KG5 and KH3 but the yellow tint is still on both sides of my screen while it's less noticeable it's still very present and annoying. I will send it back to Hong Kong but will probably be without the device for about a month or more grrrr.
[Galaxy S II General] BarryH_GEG:
You either have that backwards or you're the first person ever to have a warm/yellow screen perform better than a cool/blue one. Unless the blue was incredibly exaggerated which would have been a defect. You have to look at a white background to see the blue in a cool/blue screen otherwise you wouldn't be able to tell.
[Galaxy S II General] EarlZ:
I always thought that the yellow screen was the neutral one and not the warm one.. xD
[Galaxy S II General] manom18x:
I have this yellow tint on my left side of my screen.

Which kernel/firmware I must flash in order to get rid of this tint?

It is possible to install a rom without getting root?
[Galaxy S II General] Black-Star:
Try KH3, you don't have to root to flash a firmware.
[Galaxy S II General] EarlZ:
Any 2.3.4 based kernel starting from XXKG1 to XXKH3. Yellow tint is just alleviated not totally fixed, you need to perform the screen lock once for the changes to take effect, left side will be noticeably darker in certain usages like on the SMS inbox/dialer and other small popup notification messages like taking a screen shot or root permissions.
[Galaxy S II General] manom18x:
How I perform the screen lock?

Thx for the help!
[Galaxy S II General] EarlZ:
By pressing the lock/power button once :confused::confused::confused: