Hi, I know there are a few thread discussing about the screen where black line or so call dead pixel can be seen.
I bought the first batch Galaxy Note in Malaysia (it comes with a free Samsung case). I can clearly see dark smudges on the display especially with gray and green background. I brought it to the service centre and made some comparison with another unit (the technician's) and it displays the same dark smudges by at different intensity. This unit is the first batch Galaxy Note too.
Anyway I got the screen replaced and the new screen has no such dark smudges. The question here is, do all first batch units have this problem?
LoL, today is 14th day since I gave my Note to service center due to incorrect gamma and black clipping. Still no information, no response for my yesterday e-mail. I must admit that I noticed such problem too but it was so slight compared to bad gamma that I did not considered it as a real problem. How long did your repair took? According to Polish law if I don't get any information today I will have a right to full refund. ****ing fags, I hate that country. Always that same. Never better.
Probably not all first batch units have that problem. However there are so many variables. I know a bit of Manufacturing systems. Technological Engeneers probably have setup tech process wrongly. If the QRQC worked correctly they fixed that problem and there will be no further Notes with screen problems. It's always a matter of time to setup process the most flawlessly.
programatix said:
Hi, I know there are a few thread discussing about the screen where black line or so call dead pixel can be seen.
I bought the first batch Galaxy Note in Malaysia (it comes with a free Samsung case). I can clearly see dark smudges on the display especially with gray and green background. I brought it to the service centre and made some comparison with another unit (the technician's) and it displays the same dark smudges by at different intensity. This unit is the first batch Galaxy Note too.
Anyway I got the screen replaced and the new screen has no such dark smudges. The question here is, do all first batch units have this problem?
Click to expand...
Click to collapse
For what i know. Some screens have those dark smudges more visible then others, mine had noticeable smudges in gray and white backgrounds only with lowest set brightness. Nothing too annoying for me... There are some example photos on the forum that i found not acceptable though...
On the other hand, this weekend found an entire line of dead pixels in my note's screen!! Oh well. Just sent it for repair and might take 3 weeks...
Here in Malaysia, it normally takes 3 days to for the service. However, I think due to the recent Chinese New Year, it took 1 week for them to get their hand on the replacement screen. They let me have my Note while waiting for the part to arrive. It took less than 1 hour to replace the screen.
Btw, just to express it again, the new screen is dark smudges free.
I had my screen replaced on the spot too. Screen had smudges and they replaced it within the hour. Thumbs up to Samsung Malaysia.
Hi,
Samsung S4 owners please help. Just received mine and everything looks good, however the screen has a red/burgundy tint on blacks in total darkness.
For testing I closed the camera lens and took picture so it's totally black, when you look at the picture in the dark it's not black and has red colos in it comparing to my Note ii and LG Optimus G.
If you have the same problem please post, so I can return it in two week period or switch for HTC ONE.
Thanks,
My screen is 100% black on darks. It looks like its completely off.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
grant7 said:
Hi,
Samsung S4 owners please help. Just received mine and everything looks good, however the screen has a red/burgundy tint on blacks in total darkness.
For testing I closed the camera lens and took picture so it's totally black, when you look at the picture in the dark it's not black and has red colos in it comparing to my Note ii and LG Optimus G.
If you have the same problem please post, so I can return it in two week period or switch for HTC ONE.
Thanks,
Click to expand...
Click to collapse
I have this too, it's not the OS as the screen was very very dark red when I was soft-bricked.
Yep, same here.
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2
Confirming
Just back from 2 AT&T stores to check if demo S4 has the same problem, and confirming YES the blacks in total darkness is more like super dark dark red not 100% black.
The AT&T rep confirmed and said "If you don't like it, return it".
Also I found topic that covers this problem regarding red subpixels being active when displaying black , but the international version is fixed after firmware update.
So I think only US AT&T models affected with no fix for now.
Another thing I found is that if I scroll really fast on a black background there's a reddish haze on the screen.
Turn your brightness all the way down, go into a dark room, open settings, and scroll really fast up and down.
Does this happen to everyone else?
ChaseBroyles said:
Another thing I found is that if I scroll really fast on a black background there's a reddish haze on the screen.
Turn your brightness all the way down, go into a dark room, open settings, and scroll really fast up and down.
Does this happen to everyone else?
Click to expand...
Click to collapse
Just checked and I don't have any haze when scrolling fast, but do have red subpixels being active when displaying black.
grant7 said:
Hi,
Samsung S4 owners please help. Just received mine and everything looks good, however the screen has a red/burgundy tint on blacks in total darkness.
For testing I closed the camera lens and took picture so it's totally black, when you look at the picture in the dark it's not black and has red colos in it comparing to my Note ii and LG Optimus G.
If you have the same problem please post, so I can return it in two week period or switch for HTC ONE.
Thanks,
Click to expand...
Click to collapse
I Have the Sprint model and also experience this problem. There are several issues I have with this phone. Lag, software glitches, keyboard issues etc. And these occur on every S4 I have used which is several, none Exynos versions though. They rushed the release is what I think. They should have fixed the issues being compained about before release.
ChaseBroyles said:
Another thing I found is that if I scroll really fast on a black background there's a reddish haze on the screen.
Turn your brightness all the way down, go into a dark room, open settings, and scroll really fast up and down.
Does this happen to everyone else?
Click to expand...
Click to collapse
There is a long thread in the international S4 forum discussing this. There are two different screen problems, either red pixels are on when displaying blacks, or you get smearing on greys/purples over blacks. Samsung just released a firmware updste for the intrnational version that gets rid of the red pixels for those who had that issue, but it makes their screen smear. So no everyone has the smearing problem with tbe international version. Hopefully they can address the smearing problem with firmware soon. I can imagine some games being affected pretty badly by this issue.
Samsung S4 AT&T Version Red subpixels on black stay on.
See attached sample image. Easy to see in total darkness when brightness all the way down, red pixels visible on any black, picture, menu, web etc.. except boot logo.
The image made in total darkness, for black sample opened 100% black background.
grant7 said:
See attached sample image. Easy to see in total darkness when brightness all the way down, red pixels visible on any black, picture, menu, web etc.. except boot logo.
The image made in total darkness, for black sample opened 100% black background.
Click to expand...
Click to collapse
Yep that's what mine looks like.
Sent from my SPH-L720 using Tapatalk 2
AT&T Update did not resolved the red subpixels on problem.
Received update this morning from AT&T. There was a hope for a fix of the red subpixels glow, but the problem still the same after update.
Returning mine.
grant7 said:
Received update this morning from AT&T. There was a hope for a fix of the red subpixels glow, but the problem still the same after update.
Returning mine.
Click to expand...
Click to collapse
Thats a shame. I was really hoping Samsung would address this sooner than later.
grant7 said:
See attached sample image. Easy to see in total darkness when brightness all the way down, red pixels visible on any black, picture, menu, web etc.. except boot logo.
The image made in total darkness, for black sample opened 100% black background.
Click to expand...
Click to collapse
I also have the red subpixels on my sprint sgs4
I had this on my first S4. My GF didn't on hers. I took it back to the store and they looked at me like I was crazy (didn't argue that fact).
Rep took it to the back to show manager and pull another phone and he told me that this was common enough that they got an email about it from HQ.
New unit didn't have the problem.
Not only are blacks with a redish tint, but another way to tell if the screen has this problem is press the menu button. Then, it is easier to tell a good screen vs a messed up screen because they are clearly a different color. Easier to show them that instead of minimum brightness, in a dark room, you can see it I swear kind of argument.
I wish I would have taken a pic to post the differences.
_Burst_ said:
I had this on my first S4. My GF didn't on hers. I took it back to the store and they looked at me like I was crazy (didn't argue that fact).
Rep took it to the back to show manager and pull another phone and he told me that this was common enough that they got an email about it from HQ.
New unit didn't have the problem.
Not only are blacks with a redish tint, but another way to tell if the screen has this problem is press the menu button. Then, it is easier to tell a good screen vs a messed up screen because they are clearly a different color. Easier to show them that instead of minimum brightness, in a dark room, you can see it I swear kind of argument.
I wish I would have taken a pic to post the differences.
Click to expand...
Click to collapse
Thanks for reply,
So you just went to store and replaced bad one for good one? So maybe it's a first ones with this problem? I visited 2 different stores and demo units red as well, they said that all devices they have in stock is the same shipment 60 or so units. Will try next week.
Thanks again.
grant7 said:
Thanks for reply,
So you just went to store and replaced bad one for good one? So maybe it's a first ones with this problem? I visited 2 different stores and demo units red as well, they said that all devices they have in stock is the same shipment 60 or so units. Will try next week.
Thanks again.
Click to expand...
Click to collapse
Yea, just head over to AT&T and swap it out. A display issue such as this is very rarely addressed in firmware and has to be replaced.
I replaced my unit yesterday no questions asked(kinda) as they're very aware of the myriad of issues some early devices have. Just don't use too much tech jargon like "pixels" "true black" "contrast ratio" etc. or you might get blank stares as I did lol. Good luck.
I have the T-Mobile version and have this also. I noticed it when I first turned it on. I had an S3 before so I know how black the AMOLED screens can get. I don't mind much since it's just when it's displaying blacks and I haven't seen it much except for boots. I think I have the smearing too but I just look at it as motion blur :silly:
Try turning off the auto brightness. My S4 does the same thing only when auto brightness is on.
does this happen on all models, random models, or only white/black models?
I'm curious to see if this is a potential side-effect of that semi-transparent digitizer (like the notification screen-glow thing that was mention in other threads).
Hi all,
I know there is alot of discussions surrounding yellow tinting and yellow colors , or uneven screens on S2 , S3.
But I haven't seen much of it talked about for the S4.
My S4 has slightly darker colors on the top of the phone. The difference is quite visible on a white background, and very visible on a grey background.
Here some photos showing the issue:
From the naked eye the differences are not as great as shown on the photos. however it is there. sometimes its darker sometimes its not so much darker. but visible and very evident that the screen colors are not even.
Is there any problem with this? Do I need to take it to Samsung for repair?
When I'm using google for example the top of the screen is like bluish....and the other half of the screen is white.
Because I haven't seen many discuss about this issue, I'm wondering whether its just mine?
You have a defective screen.
Take it back for repair or replacement
As you know Galaxy S6 and other old smartphones with AMOLED displays have one big problem and that is uneven color temperature aka. yellow tint aka. green tint. I have the same problem with my Galaxy S7 edge. When I open one website with white background I can clearly see that white on the right part of the screen is darker than white on left part of the screen. I replaced 2 screens and every screen have this problem. But I am 100% sure that there are screens which have even color temperature. It sux that you have to be lucky to get S7 edge with good display.
My question is...is there any app (I don't care if it is an app with ROOT need) which can change color temperature only on some parts of the screen? I am sure that this problem could be fixed with an app. I have an app Screen Balance and this app really nicely improve white color on my screen. On my phone white color was at first more yellowish but now it is a lot like it should be because of this app. But main problem still exists - on the right part of the screen white color is more darker.
Thank you guys.
Nobody knows?
There's an app for tweaking colour temperature, and it is without root. But to solve the problem that makes your phone's colour temperature uneven, I'm sorry, I don't know that..
Never heard of anything that does what you require.
....