[Q] Warm vs Cold Phone and horizontal banding - Samsung Galaxy Nexus

I've had my phone about a week and the screen is fine when I'm inside. But I noticed on the way home from work (I walk from my work, about 10 minutes away) that the more I took my phone out, the more I noticed horizontal banding. It freaked me out a bit (I bought this phone from Swappa), but as I got back in a warm environment, the banding went away. Went back out for a run and it did the same thing.
My question is:
1. Is this normal behavior for AMOLED screens, for this device, or is it a defect?
2. Will this temperature change hurt the phone? I live in Wisconsin and odds are it's going to be cold a lot.
3. Should I get a snuggie for my phone?

Never noticed any banding, perhaps i'm not really looking for it.
Will look out for it when my phone gets back from the service center..

Take mine skiing all the time. No banding.
Sent from my Galaxy Nexus using Tapatalk 2

Mach3.2 said:
Never noticed any banding, perhaps i'm not really looking for it.
Will look out for it when my phone gets back from the service center..
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Well I've read up a bit on horizontal banding and i know it's common with this phone. But I've never had anyone say it's temp related.
Sent from my Galaxy Nexus using Tapatalk 2

I noticed this as well with my phone. I had horizontal banding all the time, but the banding seemed to be more pronounced when the phone was cold.
I returned it for a screen replacement under warranty and just got it back about a week ago. The banding is now gone and I don't see it when the phone is cold, either. I don't think the banding is normal but, if it is occurring, it can be made more noticeable when the phone gets cold.

Breaking news : the GN screen is crap.*
*there aren't any existing threads about it on XDA, not a single one. /s

When you say banding do you me slightly darker stripes (almost like shadows) or do you mean bright white horizontal stripes where no information can be seen.
I live in the north of Sweden and often subjected my old Galaxy S to -10 to -20°C. I would quite often see white banding or rows of white pixels. These always disappeared whed the phone was taken inside. The phone still works faultlessly today.

For me, the horizontal bands were linear "shadows" of lower screen-brightness alternating with linear areas of normal brightness. There is no loss of information.
After the screen replacement, I would say the screen is as nice as on any phone I've used. My last phone was a Nexus One, and the new screen is comparable in quality to the one on the N1.

Related

[Q] Yellow tint when looking straight at the phone

Hi there,
I just got my T-Mobile SGS2. When I look straight at the phone screen, I see whites that are yellowish, as if the color temperature is bumped up by +2000-3000K. Tilting the phone 5-10 degrees to the left or right shows proper, much colder whites, as one would expect. The same nice whites can be seen if I tilt 20-30 degrees up/down.
Perhaps I would not have noticed this problem had I not played the with international version of SGS2 - the whites on that phone are just stunning anyway you look at it. I went back to the T-Mobile store and all the SGS2 phones there the same "issue". The guy in the store thinks that is how the colors should be...
Am I going crazy here? Is it normal to see this yellow cast with a straight viewing angle? Can someone confirm that their screen shows fine whites at any viewing angle? I'm considering sending the phone back for replacement, but it'd be futile if this slight yellow cast is indeed normal...
Mine is like that too. I think its just a quality of the amoled screen, cause I've seen it on other amoled phones too. You get used to it.
Sent from my SGH-T989 using xda premium
I've checked out/toyed around with close to half a dozen handsets since they came out a couple weeks back and I have yet to see one that has a yellow tint. Every one I've seen has had a blue hue/tint, some approaching a grey cast while a couple others almost like a light mint green. Unfortunately AMOLED screens have the hardest time reproducing white as there apparently is no such thing as a true white LED.
Sounds like the one you got did indeed come a lot warmer than most which tend to me on the cooler side. I wish they would have a factory setting much like most flat panel TVs have for setting/adjusting color temperature to your liking. The blue tint really bugs me but I guess over time you just get used to it. Same would go with yellow too, just have to get used to it. I suppose you could keep exchanging phones as some lucky few out there seem to have gotten handsets with a good color temperature where whites actually look white, but who knows how many times you'd have to try that. I'd bet most places wouldn't be too willing to do that for a customer though.
I'm looking at a yellowish tinted XDA now. Totally dark in my room, auto backlight could be the issue...
Sent from my Herc + EagleBlood V1

Faint spots on black backgrounds

Any else notice dark blobs when displaying black backgrounds? I believe they're air bubbles, as they disappear when pressed. Is this typical of SAMOLED screens and does it go away? Or should I take my device back in?
Sent from my Galaxy Nexus using XDA App
I have noticed some lines on my screen when displaying in low brightness, do you see these spots on all brightness levels ?
Resolved! Looks like using the handset for a day--pressing it against my face, putting it in my pocket, et cetera--has made the blotches disappear. I only noticed them last night while reading from the kindle app, night mode, minimum brightness in a dark room. It's been about 12 hours since (and a little less than 24 hours since purchase), and testing it again in a dark room, the blotches are no longer an issue.
My theory is that it was air bubbles between the digitizer/glass/lcd, and it hadn't quite 'set'. This phone has only been out a week here in Korea, and it's been sold out everywhere, so I'm guessing that we're receiving these units as soon as they roll off the assembly line. The store I bought mine from didn't even have them on site, so they had to get a bike messenger to bring one from another location.
No lines, however. I'm not sure what that's about. Is it a banding type effect? Or are they thin, sharp, and jagged?
Goat_For_Sale said:
I have noticed some lines on my screen when displaying in low brightness, do you see these spots on all brightness levels ?
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Click to collapse
the lines are due to the pentile screen. at least with the higher res/ppi it doesn't do that fuzzy text/icon b.s. like the RAZR(at least not noticeably to the average eye).

Screen Burn?

I got my galaxy nexus this morning and I have to say, this screen is awful. I'm not sure if it's defective or they are all like this. Everything was fine until I turned the brightness down. I loaded google.com up and the white on the page looked like it had colored dots in it. It's not white at all. After looking at it for a while, it appears to be some type of image retention? Do these type of screens get burn in? When I flip to landscape the area where the 3 bottom buttons are is worse in discoloration and I can make out the button images. It's not too bad but this thing was $700 and plus it's only 12 hours old... I don't know if I should return it?
Spray neutrogena sunblock on the screen...make sure its spf 100+!! No more burn! Oh wait!...
Seriously, you may just have to exchange it.
Sent from my Galaxy Nexus using Tapatalk
Other people have reported image retention too. It's 'normal', unfortunately.
I got it to my plan is to just wait a few months/weeks and wait until batches with perfect screens will ship then I will return my phone. So I get hopefully one with perfect screen. Trying to get one with a good screen now looks like playing russian roulette.
Hello,
My screen yelleow tinte
http://forum.xda-developers.com/showthread.php?t=1391509&page=12
You might want to take a look at that thread. It probably is not burn in, but perhaps color tint and banding. (At low brightness, the whites will seem grey and have a sort of linen look to them. Many screens have also red/green discoloration.)
Here are samples about the screen issues:
https://dl.dropbox.com/0/view/pd5u8d...-47-17_435.jpg
http://img710.imageshack.us/img710/3687/gndisplay.jpg
http://aijaa.com/000229287969
Long story short, get it exchanged - however, there is a high likelihood that the new unit will suffer from the same issues.
I exchanged mine and this one doesn't have blue streaks vertical lines or dots.
Sent from my Galaxy Nexus using Tapatalk
If you see vertical streaks in it, exchange it. My first GNex had some very noticeable streaks but my second one is fine. The 'linen' look on light backgrounds when the screen is very dim is going to be on all of them from what I can tell. That seems to be a quality of the SAMOLED screen used on the GNex. If it is uniform, then it's it no big deal and 'normal'. You should not have to put up with the vertical streaks, though.

Galaxy Nexus - Purple Tint + Grainy Screen

Hey Guys,
I just got my GSM Nexus about 2 days ago from Germany (Ordered it online and my uncle bought it here in India for me). The phone is AMAZING! I love everything about it! Specially the screen... but I just noticed something. I was going through some thread regarding the screen of the Nexus. My phone has some serious contrast issues.
The black (Pure black), on the screen is perfect. Say for example - The navigation bar. But when the phone is on low brightness level, the greys turn into purple! This is a common issue, I know, just keep reading..
At low brightness level, I can see the grains on the screen, they are very much visible and all the greys turn into purples! NO idea why! It's actually really annoying, my keyboard, my settings background and notification drop down literally turns purple.
So searching for this issue, I tested the screen through this - http://www.lagom.nl/lcd-test/black.php - The first black, IS PURPLE ON THE PHONE. The background is pure black but the first black sample is purple!
I just noticed that even on 100% brightness I can see the grains and there are some purple stuff I can still see! Specially the starting of the gradient on the Settings menu.
I'm really worried right now. I have the bill/invoice of the phone. The warranty period is 2 year but I'm not sure whether they'll replace the phone's screen here in India through warranty or not. If not, I'll be so depressed.
Any idea as to what I should do?
I would contact them about the issue being resolved through warranty. The only thing I would be worried about if they did cover it would be if they exchanged it for a new one and it ended up having the same problem(since it seems somewhat widespread from what I have read). Not sure how the warranty works though. Best of luck to you!
I went through 3 Galaxy S II's before finding one that had an acceptable (but grainy) display.
My Galaxy Nexus has annoying SAMOLED issues as well, such as vertical lines and color banding, graininess, spots, etc. All I can say is don't expect a perfect screen, even if you get a replacement.
The biggest problem is - The Galaxy Nexus has not been launched in India -.-
I just sent a mail to the head of Samsung service but didn't get a positive reply they're saying that the replacement of the screen will be costly. Really disappointing.
I am really sorry to see that Samsung won't replace this phone. I had this same exact issue with the purple tint especially on low brightness. It is very noticeable on certain backgrounds or shades of black where it suddenly turns purple. The best example I could find was putting the standard color gradient wallpaper that comes with ICS and turn on the clock program and with the brightness on low turn the clock to dark mode and the purple shows up all over the place. It is quite annoying because this affects everything you do with the phone. Luckily I was within my 30 day trial period so I could get it replaced. The new phone is perfectly fine.
Had this happen to me on my replacement phone. Took it in to verizon and the reps thought I was crazy. I tried to explain that it was mostly visible with low light levels and that they should take it into the back and look at it but they just stood there. So, my third phone should be here today and I am going to be pissed if it has any issues.
I still think this is a great phone regardless of the above issues
Yeah I don't think it's the OP's phone that has the problem. I think all Galaxy Nexuses have the same problem.
Sent from my Transformer Prime TF201 using Tapatalk
Really disappointing though. I paid a hell lotta money for this thing It's the GSM version..
I always assumed that this was the standard color pattern of the Gnex. Mine has it, and I've gone through 3 screen replacements so far and all of them had it.
From what I heard Supercurio might be working on Voodoo Color for the Galaxy Nexus so hopefully it will be able to adjust the colour balance so the grey looks more grey. As for the grain effect I don't think there will be a way to fix that since from what I read it is caused by pixel inhomogeneities.
Anyway if it makes the OP feels any better once you get used to it you hardly notice the problems at all unless you specifically look out for it. Any screens you buy have some sort of imperfections and the Galaxy Nexus's is definitely one of the least imperfect.
Sent from my Transformer Prime TF201 using Tapatalk
It took me 3 exchange to get rid of purple but now I have vertical banding.
Quality control sucks...it just that simple.
Sent from my Galaxy Nexus using Tapatalk
I don't have any grain, but my keyboard looks purple from ~20% and lower brightness. Bit of a shame, it's the only chink in this phone's armor so far, but it ceases to become an issue at ~50% brightness, which I use. Until now I thought it was a part of the ICS colour pallette as even pulling up a sample of dark grey on Google doesn't replicate the purple
Such a weird issue this is! I also have an HTC Sensation with Vanilla ICS 4.0.3 - The greys are perfect due to the SLCD panel, no grains too!
But meh, whatever! The Nexus's screen is sexy! So pure! (At high brightness levels)
I'm always going to love it
Okay great news! I talked to the manager of Samsung Mobile India CC - He agreed and told me to visit the nearest service center. But now it depends on the SC to change the screen or not.
I think this is just normal for this phone...I just got mine and its purple too...no biggee... still an awesome screen.
ezcats said:
I think this is just normal for this phone...I just got mine and its purple too...no biggee... still an awesome screen.
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Exactly! Do you have a grainy screen too?
My first Galaxy Nexus seemed perfect, I didn't even know about these screen problems, because mine didn't have them and I so I really ignored topics about screen problems.
Then I swapped it out for a cheaper open box Galaxy Nexus. Now I'm seeing a purplish tint to my dark wallpaper when I have the brightness level down. And more troubling is I seem to have a grainy effect mostly visible on grey backgrounds at any brightness level (I see it a lot with the Market and Kindle apps). I don't seem to have a grainy effect with other colors though that I notice.
Little disappointed. But don't think there is much I can do because it was an open box. Doubt the retailer would let me exchange it. Does Samsung offer warranty support for the i9250 in the US? I go to Samsung's support website and enter my i9250 model number and it just says invalid.
Ravynmagi said:
Does Samsung offer warranty support for the i9250 in the US? I go to Samsung's support website and enter my i9250 model number and it just says invalid.
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Just find a service e-mail ID and send them a mail! That's what worked for me! They'll reply back by the next day. Try to convince them as much as you can!
The purple may be common, but it's certainly not normal. My first GN had deep blacks and very nice neutral greys. But it had two dark blotches that were visible on a black background without having to be in total darkness - just evening lighting would make them visible. But the colors were similar to the Nexus S it is replacing. The replacement GN I got has the normal amount of graininess at low light settings, which is acceptable to me, but the colors have a very purple tint and the contrast is not very good - holding it up between the first GN that I have to ship back and the Nexus S makes the purple and low contrast very obvious. Maybe third time will be the charm....

[Q] Faint black line on screen issues

I just got my GN2 today and I noticed pretty fast that there's a constant faint black line that runs across the width of the screen and has one dead pixel on it.
I know I probably cannot fix this without sending the phone away to get repaid. I emailed in to get this seen to. But has anyone had this problem before, and possibly found a solution/cause for it? This is quite annoying, considering it's such an expensive phone.
I don't have any dead pixels and my screen is excelent, but I have this exact same issue that I had with the Note 1. While I'm on my bed about to sleep (what I mean is.. you can only see this when on a dark room, almost pitch black) and I have a grey background I can see black lines on the screen, on my Note 1 they looked like stains, like little drops and on my Note 2 they are lines , 2 on the left corners (bottom and top). They never bottered me because you can't see them under normal use and they don't even seem to affect the screen in any way, but when I found my Note 2 had it too, I don't know, felt a bit dissapointed since it is such a great -and expensive- piece of work. I don't care about it but I though I was the only one. Clearly I'm not. But like I said it doesn't affect my screen in any possible way and you can't see it 99& of the time so I don't care =)
RodriTihuana said:
I don't have any dead pixels and my screen is excelent, but I have this exact same issue that I had with the Note 1. While I'm on my bed about to sleep (what I mean is.. you can only see this when on a dark room, almost pitch black) and I have a grey background I can see black lines on the screen, on my Note 1 they looked like stains, like little drops and on my Note 2 they are lines , 2 on the left corners (bottom and top). They never bottered me because you can't see them under normal use and they don't even seem to affect the screen in any way, but when I found my Note 2 had it too, I don't know, felt a bit dissapointed since it is such a great -and expensive- piece of work. I don't care about it but I though I was the only one. Clearly I'm not. But like I said it doesn't affect my screen in any possible way and you can't see it 99& of the time so I don't care =)
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Click to collapse
Yeah I seen a lot of people complaining about that on the original Note. The line doesn't cause any screen issues, it just really irritates me because now that I've seen it, I can't unsee it. That, and a dead pixel is just poor show! Once I return this I'm going to buy the UK LTE version, if possible. The UK LTE situation is terrible right now, though.

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